simydan:
@ceaser

You're indeed wise!

Lifepo4 it's really the bomb and worth investing on... I chose the this battery for my small setup which did cost more than if I had used lead acid battery.

I bought mine directly from the factory and it cost me 140k for 12v 100ah though, not yet connected to solar yet but I charge with a Lifepo4 grid charger of 14.6v 20a supplied along with the battery which charges full in five hours if completely drained.

I have a 600w stand alone inverter which display function is really great. My battery charges to 14.4v but holds load of 78w at 13.1v and can go like that from 9am till 7pm and still have 12.9v or 12.8v.

This load include: 32" TV=67w, GOTV decoder=18w and ceiling fan=20w

For some reasons I can't explain my inverter power's this load all at once at lower power than the real power of this load put together which is suppose to be 67+20+18=98w
So instead of having a power consumption of 98w from the display I get 78w. Please I'll appreciate if anybody can explain this...

Now one thing worth mentioning is, the inverter is 100% power efficient. It reads 0w at idle state.

Seriously Lifepo4 is the real deal, just can't wait to go off grid. Already have a smart MPPT SCC secured ahead...

Keep enjoying the sweetness of LFP bro. It seems your own supplier has been tested and trusted and you have shown that a direct purchase is a possibility. I might need to explore your own channel of acquisition for direct purchase soon cos I don't think I can be patient to wait till June when the supplier consignment will get to Nigeria (if he places order March, it'll take like 3 months for arrival, according to him)

@ the bolded. I have explained it here before that I noticed that phenomenon.

Usually your load of 97 watts is at 12v nominal battery supply to the inverter. But as the battery voltage rises, the calculated wattage consumption commensurately reduces and vice versa. Hence you have around 78 watts consumption at around 12.8v/13.0v Inverter battery power.

If you can lay your hands on a lead acid battery that will supply you around 12.2v/12.3v to the inverter, connect it and check the wattage output on the inverter. You'd realize that it will have risen to close to your expected 97 watts consumption.

By the way, a new set up I'm planning is for an inverter AC. It's gonna be a 24v system and the power inverter has been secured. The AC and the MPPT controller are also on the way. The battery of choice is 2pcs of 24v 120ah LFP which cost 235k each.

Abeg give me all the info about that your inverter. Name, specs, source and how to get it.

mctfopt:



Oh, thought you imported it. What is the make of the MPPT SCC that you using for the lithium batteries?

How's the user experience? Is it living up to the hype of lithium batteries? A colleague imported this type of batteries some years back. It turned out the place he got it from used low quality lithium batteries, the experience wasn't so good.

Bro, the UX has been fantastic so far. I have working AGM batteries that I have decommissioned lying redundant, although they'll come in handy in my experiments.

Lithium ti take over

The Nigerian supplier of the battery is so cocksure of the quality of the product he sells. After the purchase of LFP from the supplier, I thought of the possibility of getting it for less if I eliminated the middleman syndrome and decided to research the manufacturer myself.

I went on Alibaba, searched for Gold Bohai battery manufacturers and got a hit. They actually have very good track records and ratings on the website. I communicated with them and realized that direct purchase will only pay if I was importing large numbers of the consignment. Importation for personal use as is in my own case will amount to about that same cost I purchased from that 9ja supplier, so I suspended the idea for now.

The MPPT controller is 60amp PowMr, got for 23k off of AliExpress. Got here in 5 weeks, should have been 3 weeks but the seller re-sent it after an initial rejection and return from the China inspection team (according to him).

The only downside to this SCC is that while it has an editable LVD it lacks an option for HVR (High Voltage Reconnect). The PWM SCC that I used hitherto has user editable LVD and HVR and I was able to use this to seamlessly control the inverter to switch on and off according to battery SoC.

Using it with lithium, I had initially disregarded the suggestion to select the "Lithium/other battery settings" for certain reason - I see scenarios where I may need to tinker, which may involve swapping back an AGM for the LFP into the set up and then forget to revert SCC charging settings back to AGM mode. So since the 14.6v sweet spot for the LFP charging falls around the charging range of the default SCC Lead battery charging which is 13.6v (float) to 14.5v (boost), I decided to use the default; after all one of the 60amps LFP has done well on a PWM SCC with default 14.5v AGM charging setting.

That stubbornness woulda cost me the LFP if the BMS did not have a high voltage protect function. The 900 watts solar panel got enough power down such that after the charging reached 14.5v, there was apparently some transient moments of overshoots and the LFP displays 15.0v/15.5v which immediately sends the battery alarm beeping and shuts down the BMS. Thank God I was home to notice this. Note that I did not have this issue with PWM SCC which expectedly are controllers with poor efficiency.

So I had to immediately change charging setting on the MPPT SCC from the default AGM charging setting to the Lithium charging settings, and also edited the maximum charging voltage from 14.5v to 13.9v.

Pls whoever is on Lithium should take note of the bolded. Due to the efficiency of MPPT solar controllers, it's advisable you select lithium settings and edit it to the manufacturers recommended charging voltage for your battery.

spartacus11:


Was the shipping cost with UPS up to 10k?

Cost shipping included was the 43k5. It's just the custom 3k5 thingy that increased the price.

And on a second thought, I feel the UPS guy may have lied about there being customs charges because he didn't issue me any receipt in respect of that. In fact he collected cash. Shit! I just realized this now.

ceaser:


Cost shipping included was the 43k5. It's just the custom 3k5 thingy that increased the price.

And on a second thought, I feel the UPS guy may have lied about there being customs charges because he didn't issue me any receipt in respect of that. In fact he collected cash. Shit! I just realized this now.

The excitement of getting your packaged delivered after days of waiting must have made you not to give it much thought at that time.

Trippledots:


Can dis be done? Fesr no gree ne connect any wire to my fangpusun since o

I have victronconnect v1.14 that come with firmware v.1.16 if you are comfortable with it. It will not ask you for any update.

ceaser:


Bro, the UX has been fantastic so far. I have working AGM batteries that I have decommissioned lying redundant, although they'll come in handy in my experiments.


So I had to immediately change charging setting on the MPPT SCC from the default AGM charging setting to the Lithium charging settings, and also edited the maximum charging voltage from 14.5v to 13.9v.

Pls whoever is on Lithium should take note of the bolded. Due to the efficiency of MPPT solar controllers, it's advisable you select lithium settings and edit it to the manufacturers recommended charging voltage for your battery.

Thank you for the comprehensive reply, you just answered my question on why I wanted to know the MPPT SCC, I wanted to see if it has features like ability to set charging voltage, as mistakes in charging voltage can lead to the failure of the expensive batteries. Do share with us when the battery gets back to the market. Thank you.

simydan:
@ceaser

You're indeed wise!

Lifepo4 it's really the bomb and worth investing on... I chose the this battery for my small setup which did cost more than if I had used lead acid battery.

I bought mine directly from the factory and it cost me 140k for 12v 100ah

Seriously Lifepo4 is the real deal, just can't wait to go off grid. Already have a smart MPPT SCC secured ahead...

Care to share the link of the shop or contact address of this factory?

ceaser:


Keep enjoying the sweetness of LFP bro.. The battery of choice is 2pcs of 24v 120ah LFP which cost 235k each.

Abeg give me all the info about that your inverter. Name, specs, source and how to get it.

I am interested in the 24v lithium, do you mind sharing more details? Looks like lithium are trending towards affordability

simydan:
@ceaser

...

Now one thing worth mentioning is, the inverter is 100% power efficient. It reads 0w at idle state.

Seriously Lifepo4 is the real deal, just can't wait to go off grid. Already have a smart MPPT SCC secured ahead...

How were you able to determine how much the inverter consumes on idle? Since the inverter consumption is not part of what is displayed on the inverter screen. Am interested to know this as I want to check what mine consumes

simydan:
@ceaser

You're indeed wise!

Lifepo4 it's really the bomb and worth investing on... I chose the this battery for my small setup which did cost more than if I had used lead acid battery.

I bought mine directly from the factory and it cost me 140k for 12v 100ah though, not yet connected to solar yet but I charge with a Lifepo4 grid charger of 14.6v 20a supplied along with the battery which charges full in five hours if completely drained.

I have a 600w stand alone inverter which display function is really great. My battery charges to 14.4v but holds load of 78w at 13.1v and can go like that from 9am till 7pm and still have 12.9v or 12.8v.

This load include: 32" TV=67w, GOTV decoder=18w and ceiling fan=20w

For some reasons I can't explain my inverter power's this load all at once at lower power than the real power of this load put together which is suppose to be 67+20+18=98w
So instead of having a power consumption of 98w from the display I get 78w. Please I'll appreciate if anybody can explain this...

Now one thing worth mentioning is, the inverter is 100% power efficient. It reads 0w at idle state.

Seriously Lifepo4 is the real deal, just can't wait to go off grid. Already have a smart MPPT SCC secured ahead...

Can we get links to the seller you got the battery and especially the inverter from?

simydan:

For some reasons I can't explain my inverter power's this load all at once at lower power than the real power of this load put together which is suppose to be 67+20+18=98w
So instead of having a power consumption of 98w from the display I get 78w. Please I'll appreciate if anybody can explain this...

That your devices are rated at such power doesn't mean they'll consume that exact power immediately they're switched on, sometimes they'll consume far less, especially when you're not using them at maximum settings.

ceaser:


@ the bolded. I have explained it here before that I noticed that phenomenon.

Usually your load of 97 watts is at 12v nominal battery supply to the inverter. But as the battery voltage rises, the calculated wattage consumption commensurately reduces and vice versa. Hence you have around 78 watts consumption at around 12.8v/13.0v Inverter battery power.

If you can lay your hands on a lead acid battery that will supply you around 12.2v/12.3v to the inverter, connect it and check the wattage output on the inverter. You'd realize that it will have risen to close to your expected 97 watts consumption.

Bro, I don't understand how you got to link an AC load with battery voltage, based on what theorem?
like it was said the other time when you made this postulation, it lacks water.
If you want to prove it, do so by placing a watt meter permanently on each device then vary the conditions as you think they affect, then call us to class

I just bought this lento tabular battery, does anyone know about this brand, how strong and reliable is it?

ceaser:


Cost shipping included was the 43k5. It's just the custom 3k5 thingy that increased the price.

And on a second thought, I feel the UPS guy may have lied about there being customs charges because he didn't issue me any receipt in respect of that. In fact he collected cash. Shit! I just realized this now.

Thanks Bro kindly share pics of d inverter or a screenshot from the store in Aliexpress u got it from

tivta:


For you to complain then it is finished. You and George D have been trend setters here and are largely trustworthy, let's just hope the newbies take heed to your advice

Kiekie is a con man and I wonder why people still do business with him

200amphs dekka solar battery available, #130000. Contact us on 08168986461

LITHIUM BATTERY!

Felicity 24v 200ah lithium batteries. 3000 cycle life and can also be paralled !

Price : N300,000


Contact,
Smartcell global services
081-350-31951
WHATSAPP::: https:///2348170385620

kiekie1:
LITHIUM BATTERY!

Felicity 24v 200ah lithium batteries. 3000 cycle life and can also be paralled !

Price : N300,000


Contact,
Smartcell global services
081-350-31951
WHATSAPP::: https:///2348170385620

No offense intend but I have my doubt that this is truly 200AH lifpo4. Have you done a stress test to actually confirm if you can hervest close to 200AH from it when it's fully charged?

its so amazing that despite the well known fact that kiekie has been called a conman, he still freely posts items for sale on this forum. are there no measures to curb these kind of people on this forum? Just curious

kiekie1:
LITHIUM BATTERY!

Felicity 24v 200ah lithium batteries. 3000 cycle life and can also be paralled !

Price : N300,000


Contact,
Smartcell global services
081-350-31951
WHATSAPP::: https:///2348170385620

I have been eyeing this lithium thing for a while now and with these recent reviews, my mind is 80% made up to go for it. I just have to do a little more research to get all the answers I need. I might start with a small pack though, say 60ah.

I noticed there is lithium -ion and lifePo4 and some other lithium batteries. I read lithium-ion is the one with the tendency to catch fire, so going for LifePo4 is a safer option. Correct me if I am wrong @Caesar, simydan and other gurus here.
In practice, how far can you really discharge this type of battery? 50%?, 80%?

ojeysky:


No offense intend but I have my doubt that this is truly 200AH lifpo4. Have you done a stress test to actually confirm if you can hervest close to 200AH from it when it's fully charged?

I got the info and datasheet directly from Felicity firm ! They also offer warranty on the product Sir

kiekie1:


I got the info and datasheet directly from Felicity firm ! They also offer warranty on the product Sir

You will not get past this. I am on your case 24/7. Dubious Nigerian.

ceaser:


Keep enjoying the sweetness of LFP bro. It seems your own supplier has been tested and trusted and you have shown that a direct purchase is a possibility. I might need to explore your own channel of acquisition for direct purchase soon cos I don't think I can be patient to wait till June when the supplier consignment will get to Nigeria (if he places order March, it'll take like 3 months for arrival, according to him)

@ the bolded. I have explained it here before that I noticed that phenomenon.

Usually your load of 97 watts is at 12v nominal battery supply to the inverter. But as the battery voltage rises, the calculated wattage consumption commensurately reduces and vice versa. Hence you have around 78 watts consumption at around 12.8v/13.0v Inverter battery power.

If you can lay your hands on a lead acid battery that will supply you around 12.2v/12.3v to the inverter, connect it and check the wattage output on the inverter. You'd realize that it will have risen to close to your expected 97 watts consumption.

By the way, a new set up I'm planning is for an inverter AC. It's gonna be a 24v system and the power inverter has been secured. The AC and the MPPT controller are also on the way. The battery of choice is 2pcs of 24v 120ah LFP which cost 235k each.

Abeg give me all the info about that your inverter. Name, specs, source and how to get it.

Thanks for the enlightenment! I really do enjoy reading your post...

I would have loved to bring in a very strong competition here because of the knowledge I have with products and cost advantage but don't have the capacity for now.

I'll really like to assist anybody who's bold enough to trust me in getting related products at an affordable price. Note that transaction and shipping period is usually a month or less...

For my kind of Inverter, I'll post the pictures for detail's and spec but it's quite pricey for a stand alone inverter...

I will really like to connect with you sir!

3.5kva, 48volts kartel pure sine wave inverter is available, #110000. Contact us on 08168986461

218litres Bona deep freezer available, #160 000. Contact us on 08168986461

mctfopt:


Care to share the link of the shop or contact address of this factory?

My battery is build by Sendon power, They're on alibab...

ojeysky:


How were you able to determine how much the inverter consumes on idle? Since the inverter consumption is not part of what is displayed on the inverter screen. Am interested to know this as I want to check what mine consumes

Actually, if your inverter has a display that shows your load wattage, you should be able to see the load consumption as you add individual load.

To get the idle consumption, unplug all the load and see if there's still any reading on the display. If you get a reading then, that's you inverter idle consumption. If the reading is zero then, it means your inverter is 100% efficient.
What it means is that, it doesn't drain your battery when there's no load on it.

This pics shows mine with a load and without load.

simydan:



My battery is build by Sendon power, They're on alibab...

Thanks, can I have the link? How was the shipping cost?

saint2ace:



Can we get links to the seller you got the battery and especially the inverter from?

I can help you get it if you want...

simydan:



Actually, if your inverter has a display that shows your load wattage, you should be able to see the load consumption as you add individual load.

To get the idle consumption, unplug all the load and see if there's still any reading on the display. If you get a reading then, that's you inverter idle consumption. If the reading is zero then, it means your inverter is 100% efficient.
What it means is that, it doesn't drain your battery when there's no load on it.

This pics shows mine with a load and without load.

I think the best bet is to check the no load DC draw of the inverter when it is not handling any load.
This is simple to do, just put on the inverter with no load, then place a clamp on the battery terminals and check the no load current draw, then multiply whatever you get with the battery's voltage to determine the power consumed on no load. This is the idle power of the inverter, of course the inverter's display won't show this.

simydan:


I can help you get it if you want...

DIY forum...peeps usually love to do it themselves. No offense. So if it won't be much of a problem, you can always share your source. But if peeps still wants you to help them source it, by all means they are always free to contact you.

mctfopt:


Thanks, can I have the link? How was the shipping cost?

Go to alibaba type sendon on the search space, you'll get their products... For shipping it about 30k