[quote author=ojesymsym

If you see a nice product with low watt rating, please let me know.
I still believe Lg and Samsung may get it in Lagos.
Thanks

NiyiOmoIyunade:
While Lithium remains the superior chemistry, let us not bash lead acid tech so much that we begin to put out incorrect info.

First off, all lead acid chemistries are not the same. As far as I know flooded batteries can safely accept charge at 13% of capacity so a 200Ah battery can take 26A easily with no trouble, AGMs can easily do up to 25% of capacity so your 200Ah AGM battery will take 50A no trouble.

If you are sized for typical 50% DoD then it should be possible to fill up your batteries in one solar day keeping within safe limits. Not to forget also that ideal sizing for offgrid lead acid battery is 3 to 5 days autonomy and if you are so sized, C rates stop being a problem.

I just need to add, while I do agree with all your said. It still needs to be emphasized that your over night usage is still limited by how much would allow you fully charge the battery. The lower you go the more difficult it would be to fill up the next day leaving your battery in a circle of partial state of discharge which is very bad for LA batteries.

Sometimes too much knowledge can be a burden

The minimum ideal design scenario for a lead acid battery is 50% DoD and then size the panels to be able to replenish the spent batteries within 1 average solar day whilst leaving enough headroom for day time loads. Let us not forget also that millions of RE users are still getting by somehow with their lead acid batteries. This need to use a relatively low charge rate situation is specific to FLA but most Naija users have too small PV arrays or too low charge voltage to stress the battery. An FLA battery in Nigeria is more likely to die from undercharging and sulfation than too fast of a charge wearing out the plates

One issue with basic charge controllers is that they try to pass through the max possible solar charge to the batteries until absorb stage is reached - better SCC designs allow you to limit the battery charge amps specifically e.g Victron - thus I could have a 10kW array on a relatively small battery bank and allocate say 2kW to battery charging while the balance of available PV is used for day time loads.

With this one get the best of two worlds as you can size your theoretical FLA battery lean coupled with a huge solar array and yet not overcharge the battery (max charge current set) while at thesame time having enough PV to run large daytime loads.

In the end, it is a question of proper system design and leveraging available tech to best effect.

See below an example where Victron's DVCC is used to enforce a roughly 10kw battery charge limit (0.25C) on a 38kWh Pylontech bank - the PV array is sized at 18kW

bigrovar:


I just need to add, while I do agree with all your said. It still needs to be emphasized that your over night usage is still limited by how much would allow you fully charge the battery. The lower you go the more difficult it would be to fill up the next day leaving your battery in a circle of partial state of discharge which is very bad for LA batteries.

NiyiOmoIyunade:
Sometimes too much knowledge can be a burden

The minimum ideal design scenario for a lead acid battery is 50% DoD and then size the panels to be able to replenish the spent batteries within 1 average solar day whilst leaving enough headroom for day time loads.

One issue with basic charge controllers is that they try to pass through the max possible solar charge to the batteries until absorb stage is reached - better SCC designs allow you to limit the battery charge amps specifically e.g Victron - thus I could have a 10kW array on a relatively small battery bank and allocate say 2kW to battery charging while the balance of available PV is used for day time loads.

With this one get the best of two worlds as you can size your theoretical FLA battery lean coupled with a huge solar array and yet not overcharge the battery (max charge current set) while at thesame time having enough PV to run large daytime loads.

In the end, it is a question of proper system design and leveraging available tech to best effect.

See below an example where Victron's DVCC is used to enforce a roughly 10kw battery charge limit (0.25C) on a 38kWh Pylontech bank - the PV array is sized at 18kW

to do all this you need to have a cerbo right? or can you limit battery charging amps from the CC settings?

You need a GX device or Raspberry Pi or other PC running Venus OS. So the CCGX, VenusGX, CerboGX will all work.

The charge limit done via DVCC from a GX device is specific to battery charging - the GX will keep instructing the CCs how much power to allow to pass per time - just enough power to service loads and keep the battery amps where you want them to be.

Whereas if you set a charge limit at the CC, that is a global amps limit - you are simply speccing the max amps that the CC will allow to pass through itself for both battery charging and loads

netotse:

to do all this you need to have a cerbo right? or can you limit battery charging amps from the CC settings?

NiyiOmoIyunade:
You need a GX device or Raspberry Pi or other PC running Venus OS. So the CCGX, VenusGX, CerboGX will all work.

The charge limit done via DVCC from a GX device is specific to battery charging - the GX will keep instructing the CCs how much power to allow to pass per time - just enough power to service loads and keep the battery amps where you want them to be.

Whereas if you set a charge limit at the CC, that is a global amps limit - you are simply speccing the max amps that the CC will allow to pass through itself for both battery charging and loads

I do agree with this but then it has to be said implementing the above. An array that can resupply your batteries 50% dod in a day and using tech to smartly feed your battery with just what it needs. All these are not options for a cost sensitive system.

And over sized array is more money coupled with using it with gears from Victron ecosystem which are some of the most expensive around. The question to then ask is. If am going to be spending all that money on an off-grid setup. I won't use LA.

I am and have always been for linking economics with solar. If you are on a budget the focus area should be on your consumption. Limit energy consumption so that you can cycle your LA at about 35-40% dod that way you can have a reasonably sized panel that can effectively charge your LA battery. This would ensure you get the best from your battery and good ROI.

This was my secret for getting the most from my LA batteries. After 3 years the decommissioned Tubular battery can still their full capacity at C20 Discharge without going below 11.5v per battery. The average cycle was 40% dod and where always too charged every day.

Finally completed the upgrade to the solar setup. For context I started the solar journey with 2 tubular batteries and a 1.2kw 24v Sukam inverter tired to a 480w ground mounted solar system.

Over the past 6 years. The system was gradually scaled to what it is today. 5kw array, 5kw Inverter and 14kwh lifePo4 batteries.

The last set of work was to ground the panels. I got some panel ground lugs which were used with 16mm bare copper cable and terminated to a ground terminal.

I also configured a raspberry Pi for gathering system logs and usage for us for a new solar dashboard available here
http://energy.openculture.org.ng:8080/dashboard/view?id=46

What is left now are small finishing off work.

NiyiOmoIyunade:
Sometimes too much knowledge can be a burden


One issue with basic charge controllers is that they try to pass through the max possible solar charge to the batteries until absorb stage is reached - better SCC designs allow you to limit the battery charge amps specifically e.g Victron - thus I could have a 10kW array on a relatively small battery bank and allocate say 2kW to battery charging while the balance of available PV is used for day time loads.

Baba Blue Energy

It could have been Eg Deye hybrid inverter na, because it can also limit charge current..

Standard alone CC in your example is beginning to face out too.

My Oga - I use the Deye too - it is coupled to my DIY Eve battery bank and serves as the grid feed-in to my main Victron system. From 5pm the Deye feeds energy into the Victron AC In 1 until battery LVD is reached on the Eve batteries. Also, excess PV from the Victron side feeds from AC Out 2 to the Deye AC In - with this scheme I achieved no loss service to my house loads and an 'AC Coupled' bidirectional energy pipeline triggered by a mix of excess PV and time of day between two separate systems.

Here again the Victron shines as I was able to use an assistant 'Charge Current Control' to take AC Input from the Deye and pass it straight through to the Victron AC Out 1 to serve my houseloads directly without wasting energy using the Eve batteries to which the Deye are attached to charge the Pylontechs to which the Victrons are attached.

So with Deye on Victron AC In 1, battery charging is disabled but with my Gen attached to AC In 2, I can pull 11kw charge into the Pylontech batteries.

The beautiful thing is when I run bigger than 3.5kw loads off the Victron, the Eve and Pylon batteries share the burden in proportion using the Victron's Power Assist and AC input current limit feature

The Deye is a decent piece of kit with great features for the price, I have done some teardown and internals inspection however and will only deploy it in light use cases e.g residential where budget is a concern, else Victron all the way.

See below some older pre cleanup pics of the system - I have been playing a lot with the Deye and Eve DIY side of things so the power room is even messier now until I pass out of my current mad scientist phase

Dam5reey:

Baba Blue Energy

It could have been Eg Deye hybrid inverter na, because it can also limit charge current..

Standard alone CC in your example is beginning to face out too.

[quote author=NiyiOmoIyunade

Please, this GX device is how much?
Does it come as a complete package or one still need to buy other accessories?
I've an oversized pv and I may like to still install a device that will limit, regulate or control the amount of amps going into my batteries, though Morningstar Mppt also does that to a larger extend. It might make sense to have a supportive device installed.
May we see the pics of these devices.

[quote author=ojeysky

I really your efforts toward making sure the product get to the destination on time.

Good day my Oga,

The functionality of GX devices as described is specific to the Victron ecosystem - if my knowledge of your system is up to date you would need to swap out both inverter and MPPTs for Victron offerings before the GX can help.

I dimly recall that you have asked/purchased a Morningstar display meter and now a Victron BMV - you will quickly find that this mash of products work but do not give you that integrated view of your overall system as you may want.

If you are keeping your current products then a Raspberry Pi will help you capture data from both MorningStar via modbus TCP and from the BMV via vebus and from Felicity inverter via serial - it will need a very skilled hand to help you integrate this central monitoring dashboard.

Also although the morningstar has current control/limiting, this is a global setting for total amps passed through the CC, if you want finer control e.g when your average running loads vary a lot, then you can use modbus TCP commands to send dynamic instructions to the Morningstar CC so that it ramps up and down solar production as needed to keep a desired battery charge current but service variable AC loads.

If you are ever motivated to make the port to Victron, you will find everything RE monitoring and control and complex logic far simpler and available in a nice integrated manner.

See graphic below from my system monitoring via the Victron VRM portal - I took the screenshot yesterday afternoon.

As an aside I aways hated the Morningstar display meters because the tiny, sickly yellow screen for >$100 always made me want to throw up - I rather connect to the excellent webserver already built into the Morningstar via my phone or other mobile device and see a lot more info in a beautifully colored display

isangjohnson:
[quote author=NiyiOmoIyunade

Please, this GX device is how much?
Does it come as a complete package or one still need to buy other accessories?
I've an oversized pv and I may like to still install a device that will limit, regulate or control the amount of amps going into my batteries, though Morningstar Mppt also does that to a larger extend. It might make sense to have a supportive device installed.
May we see the pics of these devices.

My Oga GeekMaster Extraordinaire.

I have not forgotten the detailed tutorship and intro to Raspberry Pis you so kindly gave me back in the day - you rekindled the cold fires from my Linux admin days in my head.

Yours is a very elegant and simple dashboard - I love it.

I had some concerns about your panel earthing I wanted to discuss publicy for wider inputs and in case anyone wants to emulate.

1) Did you earth the panel frames themselves via the provided earthing point or did you earth the panel rack mounts?

It is preferable to earth the mounts instead of panels themselves for reasons below

2) Is the earth rod dedicated to the solar panels bonded to the rest of your facility earth? Electric code, personnel safety and field experience dictate an equipotential bond for all earth rods in a facility.

Now why do you not want to earth panels directly? Hybrid inverters that combine the DC-PV and AC buses sometimes throw random errors and faults because of the stray/leakage currents and ground loops between a seperately earth bonded panel and inverter protective earth - remember the inverters also have a N-PE bond (link neutral and earth inside the inverter) when disconnected from mains and inverting power from batteries - because these hybrids are also budget offerings and internals poorly isolated you will find stray currents jumping around and causing damage or random faults.

Some Solar CCs are positively grounded (rare to see such in Naija) those will likely suffer catastrophic damage if you ever use them with a negatively grounded panel.

With your system consisting of robust Victron CCs and Inverter, these issues are present but mitigated somewhat by the robust design and fault protection inbuilt and the fact that DC and AC buses are isolated but people who use hybrids and el cheapo asian CCs may want to be very careful if they choose to connect their panels to earth.

Overall, I have found that the most accomodating approach that works for all systems is to connect the panel mounting racks to earth and link all facility earth rods together for an equipotential bond - if there is an equipotential earth bond at the facility, the wire from panel rack to earth can be attached to one of the rods directly buried in the ground since this is already at thesame potential as the PE service to which the inverter is connected. With this scheme you get all the protection from static electricity and lightning hits and minimise the downside of equipment damage.

To clarify an already very confusing arena - an earth or earthing is when you connect the non current carrying parts of a system e.g chassis or frame or designated earthing point on a piece of equipment to an earth rod or other conductor buried in the earth while a ground is when you connect the current carrying parts of a system e.g neutral wire/bus to the earth.

bigrovar:
Finally completed the upgrade to the solar setup. For context I started the solar journey with 2 tubular batteries and a 1.2kw 24v Sukam inverter tired to a 480w ground mounted solar system.

Over the past 6 years. The system was gradually scaled to what it is today. 5kw array, 5kw Inverter and 14kwh lifePo4 batteries.

The last set of work was to ground the panels. I got some panel ground lugs which were used with 16mm bare copper cable and terminated to a ground terminal.

I also configured a raspberry Pi for gathering system logs and usage for us for a new solar dashboard available here
http://energy.openculture.org.ng:8080/dashboard/view?id=46

What is left now are small finishing off work.

[quote author=NiyiOmoIyunade

Found your post very informative and educative.
Yea, you still have up to date collective memory of my entire setup. Swapping my felicity inverter and Morningstar Mppt for victron was my future designed plan, if victron will still maintain the lead then.

Currently, I'm working on how to control the existing system online and maintain/control the charging profile of the battery bank with my oversized pv.

Since Raspberry Pi could capture data from my felicity inverter via serial, Mppt via modbus TCP and BMV via vebus, then I've less worries as regards monitoring.
SKILLED HAND for the integration of central monitoring dashboard is what I may not get in Akwa Ibom State. Please, I may appreciate recommendations from the neighbouring states.
All I currently need is satisfaction of my investment.

Please I need help. Whenever I order from Ali express do I have to pay to claim the goods... and where do I go collect the goods or is it always home delivery. Cos no shopping fee was included there.

NiyiOmoIyunade:
My Oga GeekMaster Extraordinaire.

I have not forgotten the detailed tutorship and intro to Raspberry Pis you so kindly gave me back in the day - you rekindled the cold fires from my Linux admin days in my head.

Yours is a very elegant and simple dashboard - I love it.

I had some concerns about your panel earthing I wanted to discuss publicy for wider inputs and in case anyone wants to emulate.

1) Did you earth the panel frames themselves via the provided earthing point or did you earth the panel rack mounts?

It is preferable to earth the mounts instead of panels themselves for reasons below

2) Is the earth rod dedicated to the solar panels bonded to the rest of your facility earth? Electric code, personnel safety and field experience dictate an equipotential bond for all earth rods in a facility.

Now why do you not want to earth panels directly? Hybrid inverters that combine the DC-PV and AC buses sometimes throw random errors and faults because of the stray/leakage currents and ground loops between a seperately earth bonded panel and inverter protective earth - remember the inverters also have a N-PE bond (link neutral and earth inside the inverter) when disconnected from mains and inverting power from batteries - because these hybrids are also budget offerings and internals poorly isolated you will find stray currents jumping around and causing damage or random faults.

Some Solar CCs are positively grounded (rare to see such in Naija) those will likely suffer catastrophic damage if you ever use them with a negatively grounded panel.

With your system consisting of robust Victron CCs and Inverter, these issues are present but mitigated somewhat by the robust design and fault protection inbuilt and the fact that DC and AC buses are isolated but people who use hybrids and el cheapo asian CCs may want to be very careful if they choose to connect their panels to earth.

Overall, I have found that the most accomodating approach that works for all systems is to connect the panel mounting racks to earth and link all facility earth rods together for an equipotential bond - if there is an equipotential earth bond at the facility, the wire from panel rack to earth can be attached to one of the rods directly buried in the ground since this is already at thesame potential as the PE service to which the inverter is connected. With this scheme you get all the protection from static electricity and lightning hits and minimise the downside of equipment damage.

To clarify an already very confusing arena - an earth or earthing is when you connect the non current carrying parts of a system e.g chassis or frame or designated earthing point on a piece of equipment to an earth rod or other conductor buried in the earth while a ground is when you connect the current carrying parts of a system e.g neutral wire/bus to the earth.

Thanks for the compliment boss. I actually connected the eart lugs and by extension the cable to the PV frames not to the mount frame. All the writing said to connect to PV frame. I however have it connected to a bonded earth rod. I have 3 earth rods all bonded together within a 3sqm area. The PV earth cable terminated to an earth bus bar from one of the earth rod. I just made sure the cables were straight with little curve or right turns. The cable went from the roof straight to the ground terminal directly under the panels.

What is your take on this setup.

If you slip and fall/lean on that Victron inverter, that's a serious incident waiting to happen
Do you have air vents in that box to allow airflow through the unit from down - up ?

NiyiOmoIyunade:

See below some older pre cleanup pics of the system...

It looks good and checks nearly all the boxes with this clarification.

Panels connected to Earth rod!

All Earth rods connected together for equipotential bond!

The only place we differ is how and where to attach the earth cables to the panels - the literature says to attach to panel frame and mount rack frame, I do only the mount rack frame (properly installed the panel frame and rack frame should be mechanically and electrically same potential.

bigrovar:


Thanks for the compliment boss. I actually connected the eart lugs and by extension the cable to the PV frames not to the mount frame. All the writing said to connect to PV frame. I however have it connected to a bonded earth rod. I have 3 earth rods all bonded together within a 3sqm area. The PV earth cable terminated to an earth bus bar from one of the earth rod. I just made sure the cables were straight with little curve or right turns. The cable went from the roof straight to the ground terminal directly under the panels.

What is your take on this setup.

You have very keen eyes my Oga!

The metal rack is bolted to the wall for stability and assisted by the white box - it would take quite a fall and heavy weight applied to trip things up - same fall would have ripped the ~80kg inverter out of the wall if wall mounted.

At that time of install, I did not trust the walls to hold up an ~80kg weight forever - I had also seen cases of wall mounted equipment being ripped loose with construction work causing heavy vibrations in adjacent walls (a lot of work was still ongoing in adjacent rooms around the house at the time) also the not trivial matter of hands to properly lift and mount such a massive contraption to the wall.

Ventilation - there is about a 4 inch space/clearance between the box frame and the wall (you can just about see it in the pics) all the way from top to bottom which is further assisted by an AC in the power room that runs 24/7 and maintains a 25/26 degC ambient.

Yes indeed, a fall that brought that inverter down would be a serious physical, personnel safety, electrical and financial incident.

Barezzi:
If you slip and fall/lean on that Victron inverter, that's a serious incident waiting to happen
Do you have air vents in that box to allow airflow through the unit from down - up ?

NiyiOmoIyunade:
It looks good and checks nearly all the boxes with this clarification.

Panels connected to Earth rod!

All Earth rods connected together for equipotential bond!

The only place we differ is how and where to attach the earth cables to the panels - the literature says to attach to panel frame and mount rack frame, I do only the mount rack frame (properly installed the panel frame and rack frame should be mechanically and electrically same potential.

Thanks. I essentially followed your back channel advise on earthing. Including using Ground Enhancement Materials in place of the traditional charcoal and salt.

I have a 48V 15KW ( 3 pieces of 5kw sync in parallel) inverter system. A battery bank of 16pairs of battery. But just after installation, I turned on my battery breaker, system was working for hours then there came a buzzing sound from the inverter and next thing, my battery breaker trips off. I tried the raise the breaker up once but it drops immediately.

Are the 3 inverters sharing one single battery side breaker? Or did one breaker trip out of 3 separate breakers for 3 inverters?

What is the rating of the breaker? Is it truly a DC rated breaker?

What size of loads were you running at the time?

What type of inverter do you have?

Pics of the breakers and detailed specs of your system will make it easier to support resolution

myrax7:
I have a 48V 15KW ( 3 pieces of 5kw sync in parallel) inverter system. A battery bank of 16pairs of battery. But just after installation, I turned on my battery breaker, system was working for hours then there came a buzzing sound from the inverter and next thing, my battery breaker trips off. I tried the raise the breaker up once but it drops immediately.

Oga Niyi and Co.
Do you know any trusted installer in my zone that can handle my integration job?

What you need per system integration is way beyond the scope of any average installer.

Such a feat with the Raspberry Pi is the work of someone comfy with tech although these days there are packaged tools ready made that could make it easier for the layman to get things done - getting data from a BMV is pretty easy (the person who sold to you can support you to make it happen), getting data from the MorningStar is doable too - the Felicity has a serial port that one should be able to coax some intelligible speech from, that is probably the hardest part of everything but BMV SoC data may just suffice for you

There are a few hands here who have played with various integrations, they will soon come up to help I trust

isangjohnson:
Oga Niyi and Co.
Do you know any trusted installer in my zone that can handle my integration job?

NiyiOmoIyunade:
Are the 3 inverters sharing one single battery side breaker? Or did one breaker trip out of 3 separate breakers for 3 inverters?

What is the rating of the breaker? Is it truly a DC rated breaker?

What size of loads were you running at the time?

What type of inverter do you have?

Pics of the breakers and detailed specs of your system will make it easier to support resolution

Pictures isn't available as I'm at the location presently.
Breakers are true DC breaker.

All 3 inverter are using diff DC battery input breaker but are all using the same battery bank.

Not all three triped @ once. 1 after another different timing.

I tried to lash back the breaker and it dropped twice with a loud sound from breaker. But when u disengage battery from inverter, breaker lashes properly ..

No indication of burnt or odd smell from inverter

You said you have 3 inverters in parallel sync, there is no way one inverter goes offline (breaker tripped) and the other two continue running - they must error out and disconnect the AC out in a failsafe manner.

No offence but It feels like you are deliberately scant on specific details of this system?

What I may say without more info is that cheap breakers tend to not be able to carry the rated amps without running hot and tripping - a 60 amp DC breaker of cheap Asian origins will run hot and trip around 40amps and higher - if you are lucky to have double pole breakers then I would break only the positive battery connection per inverter and Y branch the battery to inverter cable so that the battery current per inverter is shared across the two poles of a double pole breaker

There is a sound technical reason as well why you should not break the battery DC negative of inverters in parallel who synchronise their parallel operation via comms cables but that is a topic for another day.

For safe troubleshooting, be sure to disconnect the AC In and AC Out of all 3 inverters in parallel, switch off inverters, check that all DC connections are securely fastened, put on the DC breakers with inverters switched off, then switch on the inverters and see if the inverters can power up from battery with no trouble - if the DC breakers hold up without any AC load applied you are one step closer to the end. Inverters in parallel work safely and stay in sync only when there is comms between them - sparks will surely fly if you combine the AC out of 2 or more inverters while they are out of sync with each other hence the troubleshooting tip above.

It may be best to call on your installer, technical support as well

myrax7:


Pictures isn't available as I'm at the location presently.
Breakers are true DC breaker.

All 3 inverter are using diff DC battery input breaker but are all using the same battery bank.

Not all three triped @ once. 1 after another different timing.

I tried to lash back the breaker and it dropped twice with a loud sound from breaker. But when u disengage battery from inverter, breaker lashes properly ..

No indication of burnt or odd smell from inverter

isangjohnson:
[quote author=ojeysky

I really your efforts toward making sure the product get to the destination on time.

You are welcome

Valto:
note: no:1, my cells are brand new grade A, not used/refurbished/salvaged.
no:2, lifepo4 lithium is not for everyone, u can always step in when u are ready.
no:3, real capacity lifepo4 lithium packs are not cheap, most of the ones in Nigerian market are not up to declared capacity and some are used cells.

Is that why a 48v 200ah bank(10kw) should cost 1.2 million Naira? Meritsun 48v 200ah cost $1500 or 850k on alibaba. Is your battery better than meritsun?

Greedy Nigerians!

Michaelondon53:
Please I need help. Whenever I order from Ali express do I have to pay to claim the goods... and where do I go collect the goods or is it always home delivery. Cos no shopping fee was included there.

Some items are sold with 'Free Shipping'.
In such cases, you wont see a Shipping Fee.

Depending on your "Trade Terms" (the delivery agreement the seller had written on their Seller page, which everyone should read before making payment), goods can be delivered to your door.
You may also have to pick up bulky equipment from the Store/Warehouse of a Shipper Agent.

If your Purchase has 'Tracking', then you should Track it, at times you may have to collect it from the nearest post office.

Go through the thread on Ali Epress Buying on nairaland, if may provide some more information.

truthbetold22:


Is that why a 48v 200ah bank(10kw) should cost 1.2 million Naira? Meritsun 48v 200ah cost $1500 or 850k on alibaba. Is your battery better than meritsun?

Greedy Nigerians!

like i said lifepo4 lithium is not for everyone. moreover i never advertised any 200ah cells, so where is this outburst coming from . if e easy, import your so called meritsun for 1500$ x590=885,000, then ship it(note lithium is shipped as dangerous goods, hence more than double the normal shipping fee) u pay outrageous shipping fees + a 4months wait, then as mr do good, sell it for 900k. cheers

Valto:
like i said lifepo4 lithium is not for everyone. moreover i never advertised any 200ah cells, so where is this outburst coming from . if e easy, import your so called meritsun for 1500$ x590=885,000, then ship it(note lithium is shipped as dangerous goods, hence more than double the normal shipping fee) u pay outrageous shipping fees + a 4months wait, then as mr do good, sell it for 900k. cheers

Lithium batteries are not shipped via air. A cbm shipment via ocean freight isn’t more than 100k. One meritsun battery is less than 1/5th of a cbm so go figure. 1.2 Million is what it would cost if you consider that you need 32 pieces of your 3.2v 100ah to make a 200ah bank. Multiply by 38k which you are asking and you already have over 1.2 million.

That is a ridiculous price for what you are offering without a bms. Do not forget that meritsun comes with a BMS and already top balanced and a ready made case.

Sorry sir, no offense intended but this is greed. I I will show anyone who wants to import meritsun how to get it done. Say no to exploitation.

truthbetold22:

Lithium batteries are not shipped via air. [s] A cbm shipment via ocean freight isn’t more than 100k.[/s]

false! a cbm of battery goods is currently between 420k to 500k. go ask shippers now.

1.2 Million is what it would cost if you consider that you need 32 pieces of your 3.2v 100ah to make a 200ah bank.

again u are misyarning, no sane person will use 32pcs 100ah cells to build a 200ah 48v battery bank when 200ah cell are readily available and a little cheaper.

Multiply by 38k which you are asking and you already have over 1.2 million.

my 100ah cells is 36k, not 38k. if u have good reasoning, u should have known, that the bigger the capacity of cells, the lesser the price, thats why 100ah is 40$, 200ah 70$ while 302ah is 105$

That is a ridiculous price for what you are offering without a bms. Do not forget that meritsun comes with a BMS and already top balanced and a ready made case.

until u import your meritsun and it lands naija, landing cost calculated, true capacity of the cell inside ascertained. then we can talk.

Sorry sir, no offense intended but this is greed. I I will show anyone who wants to import meritsun how to get it done. Say no to exploitation.

my 100ah and 105ah cells is not targetted for 48 system clients. until u become a merisun distributor and market yours for under 1million, then i will take u serious. cheers