ceaser:


I was impressed too.

By the way, I eventually made 6k5 out of the battery.

Fair enough...at all at all na im be winch.

ceaser:


Not around now but I'll inform 'em to have that addressed. Thanks.

But what about Li-on 18/65/0s, can that be ok float at the max recommended voltage (4.15v)?

Hmm.... considering that li-ion quite volatile then LFP I would expect that setting it high would have impact as well.

The CC has dedicated lithium charging settings but the voltages are user editable. Lead acid battery settings has bulk and float settings. But the moment you select Lithium charging profile, the bulk and float becomes redundant and you will be required to set the highest charging voltage. I'm now not sure if that voltage keeps it in float, but what I know is that if full, it remains at that set voltage until the sun retires for the day.

With lithium profile it should stop charging and trickle charging will not be happening, though charging(bulk) at high voltages is also not a good thing either.

ceaser:


I was impressed too.

By the way, I eventually made 6k5 out of the battery. Thanks for the heads up from saint2ace and mctfopt. The guy wan pay 5k, na hin I do strong head for 7k, even telling him say make him bring scale come weigh am say if e reach 30kg I no go sell am less than 10k . Guy quickly gree for 6k5.

Nice one, enough for a decent sized chicken for the weekend....lolz. Well done bro

Fangpusun flex max 80a 150k
Fangpusun blue solar 30a=38k
50a=48k

You probably want to spec 27v in terms of the individual cell voltages.

My Pylontechs are 15s for a nominal 48v system. If I extrapolated 27v, I would be doing 54v which would definitely trip the HV alarm on my battery bank.

I say so because many people will read and use this information.

Now all LFPs are not created equal - most are even silent about Float voltage e.g in the Victron + PylonTech integration, Victron is overriding the Pylon BMS to do 52.5v (3.5v per cell) constant voltage whereas the BMS is asking for 53.5v (3.57v per cell) and there is no voltage reduction at any time. So in an ongrid or ESS type system the batteries would sit at a constant 53.5v per BMS request or 52.5v if using Victron DVCC.

For the Felicity LifePO4, they run a 16s system and it seems the recommended voltages are rather high at 57.6v - 57.8v (3.6v per cell). And they spec no float as well).

Beyond the obvious decay that starts at high cell voltages, one wonders what is an optimal voltage to play at and how long it is safe to stay there, it is key to spec the Lithium voltages on a per cell basis or if you must quote voltage for the bank, spec how many cells are in series else people would make expensive mistakes.

ojeysky:


By doing that you have actually addressed another problem; floating LFP at high voltages is not good for the lifespan of the cells. I float mine at 27v

NiyiOmoIyunade:
You probably want to spec 27v in terms of the individual cell voltages.

My Pylontechs are 15s for a nominal 48v system. If I extrapolated 27v, I would be doing 54v which would definitely trip the HV alarm on my battery bank.

I say so because many people will read and use this information.

Now all LFPs are not created equal - most are even silent about Float voltage e.g in the Victron + PylonTech integration, Victron is overriding the Pylon BMS to do 52.5v (3.5v per cell) constant voltage whereas the BMS is asking for 53.5v (3.57v per cell) and there is no voltage reduction at any time. So in an ongrid or ESS type system the batteries would sit at a constant 53.5v per BMS request or 52.5v if using Victron DVCC.

For the Felicity LifePO4, they run a 16s system and it seems the recommended voltages are rather high at 57.6v - 57.8v (3.6v per cell). And they spec no float as well).

Beyond the obvious decay that starts at high cell voltages, one wonders what is an optimal voltage to play at and how long it is safe to stay there, it is key to spec the Lithium voltages on a per cell basis or if you must quote voltage for the bank, spec how many cells are in series else people would make expensive mistakes.

I am referring to lifepo4 (LFP) and all of them are equal in nominal voltage of 3.2v and are rated to be charged at up to 3.65v without an immediate damage of cell. They are also equal in number of cells that makes up battery banks 4s, 8s, 16s for typical inverters 12v, 24v, 48v respectively. So the pylons, Felicity and the DIY will have those characteristics in common. The BMS then makes the difference in low and high voltage cut offs.

All LFP are not supposed to be floated(they are CC-CV) hence no mention of such in spec, but there are still several inverter built for lead acid that we are trying to adapt for lithium charging.

Charging an LFP at 3.4v max has just about 1 or 2% less capacity compared to charging at 3.6v so I personally don't see the motivation for charging at high voltages and consider 3.4v to be an optimal charging point. However in a solar environment where one needs to get as much juice within a short window sticking with 3.4v won't be good enough so I push mine a little further to 3.45v max.

ojeysky:


I am referring to lifepo4 (LFP) and all of them are equal in nominal voltage of 3.2v and are rated to be charged at up to 3.65v without an immediate damage of cell. They are also equal in number of cells that makes up battery banks 4s, 8s, 16s for typical inverters 12v, 24v, 48v respectively. So the pylons, Felicity and the DIY will have those characteristics in common. The BMS then makes the difference in low and high voltage cut offs.

All LFP are not supposed to be floated(they are CC-CV) hence no mention of such in spec, but there are still several inverter built for lead acid that we are trying to adapt for lithium charging.

Charging an LFP at 3.4v max has just about 1 or 2% less capacity compared to charging at 3.6v so I personally don't see the motivation for charging at high voltages and consider 3.4v to be an optimal charging point. However in a solar environment where one needs to get as much juice within a short window sticking with 3.4v won't be good enough so I push mine a little further to 3.45v max.

My banks are also kept at 55V or 3.44v/cell, (Bulk, absorption and float).

My intent may have been lost in all the English I spoke.

LFPs are not as standardised in series config and voltages as you may think or even as lead acid generally are. So lead acid you typically have 2v, 6v, 12v nominal and you can stack them as you choose.

Pylontech and Dyness are usually 48v nominal batteries but are arranged as 15s. This is very key as it means not every inverter can integrate well with them.

A Pylontech battery will not start balancing until cell voltages cross 3.45v per cell so you need to pass that threshold especially if you do deep discharges. Simultaneously the BMS freaks out at exactly 3.6v per cell which is 54v nominal and immediately shuts down the battery. So you can't charge to the max limit as you are BMS restricted.

The Felicity is more standardised for use with any run of the mill inverter.

In my book, Bulk charging is a Constant Current phase while Absorb and Float are both Constant Voltage phases. All these standards were speced before solar charging became mainstream. A mains powered charger would put out a constant current (bulk) till absorb voltage setpoint was reached and then start throttling current to maintain a constant voltage for X hours or till a tail current limit was reached and then go to float (another constant voltage phase).

ojeysky:


I am referring to lifepo4 (LFP) and all of them are equal in nominal voltage of 3.2v and are rated to be charged at up to 3.65v without an immediate damage of cell. They are also equal in number of cells that makes up battery banks 4s, 8s, 16s for typical inverters 12v, 24v, 48v respectively. So the pylons, Felicity and the DIY will have those characteristics in common. The BMS then makes the difference in low and high voltage cut offs.

All LFP are not supposed to be floated(they are CC-CV) hence no mention of such in spec, but there are still several inverter built for lead acid that we are trying to adapt for lithium charging.

Charging an LFP at 3.4v max has just about 1 or 2% less capacity compared to charging at 3.6v so I personally don't see the motivation for charging at high voltages and consider 3.4v to be an optimal charging point. However in a solar environment where one needs to get as much juice within a short window sticking with 3.4v won't be good enough so I push mine a little further to 3.45v max.

adrusa:


My banks are also kept at 55V or 3.44v/cell, (Bulk, absorption and float).

Right, though no absorption in my setup, but when mine hits full, I throttle down my float to 3.375(27v) thanks to node red and mqtt. Don't want it sitting on float at 27.6v

NiyiOmoIyunade:
My intent may have been lost in all the English I spoke.

LFPs are not as standardised in series config and voltages as you may think or even as lead acid generally are. So lead acid you typically have 2v, 6v, 12v nominal and you can stack them as you choose.

Pylontech and Dyness are usually 48v nominal batteries but are arranged as 15s. This is very key as it means not every inverter can integrate well with them.

A Pylontech battery will not start balancing until cell voltages cross 3.45v per cell so you need to pass that threshold especially if you do deep discharges. Simultaneously the BMS freaks out at exactly 3.6v per cell which is 54v nominal and immediately shuts down the battery. So you can't charge to the max limit as you are BMS restricted.

The Felicity is more standardised for use with any run of the mill inverter.

In my book, Bulk charging is a Constant Current phase while Absorb and Float are both Constant Voltage phases. All these standards were speced before solar charging became mainstream. A mains powered charger would put out a constant current (bulk) till absorb voltage setpoint was reached and then start throttling current to maintain a constant voltage for X hours or till a tail current limit was reached and then go to float (another constant voltage phase).

The highlighted is smart as it gives room for more inverters to be compatible with charging and handling it's LVD though at the expense of 1s short in capacity. Not a bad trade off

ORDER YOURS NOW! ONE YEAR STANDARD WARRANTY!!!

Makeskyblue 60A MPPT Solar Charge Controller with Wifi function (75,000)

100% MPPT controller

Intelligent Maximum Power Point Tracking technology

Built-in DSP controller with high performance

Automatic battery voltage detection 12V/24V/36V/48V

Three-stage charging optimizes battery performance

Multi-function LCD displays

Output limited current protection

Overcharge protection

Over-temperature protection

Easy to be mounted on the wall

No need an extra device to be in parallel

No limited quantity to be in parallel

Easy to set for lithium battery

Suitable for battery types of sealed lead acid, vented Gel, and Lithium battery

Contact,
0802-386-1665
WHATSAPP::: https:///2347034051302

Luminous 1.5kva 24v ION Sine wave inverter with UPS function.

Price: 50,000
Location: Ibafo, but can be brought down to a major bustop on one of my trips
Reason for sale: I have got 2 other inverters.
Free gifts: one 13amp original multi-purpose fuse and a DC voltage display

Picture 1: Inverter on
Picture 2: Inverter charging smartly.
Picture 3: Clamp current reading when the inverter has charged the batteries full. Notice that no current is being outputed anymore since the batteries are full, attesting to the smart charging function of the inverter. I forgot to snap pics of clamp current reading when the inverter began charging, but it read 10a.
Picture 4: Back of the inverter

Kindly follow the below thread to see more pics like the digital display of my batteries' voltage while being charged by the inverter, free gits, etc:
https://www.nairaland.com/6298302/luminous-1.5kva-24v-ion-sine#96761587

omotoda:


Oga do you have any of those your PowMr CC available for sale!!I am interested if price is right.I have placed order for one but it might not get here on time.

My Oga,

I have one (60v variant) on ground now that i may not use until about 2 months time. If you make me a decent offer, i may just let it go

odimbannamdi:


My Oga,

I have one (60v variant) on ground now that i may not use until about 2 months time. If you make me a decent offer, i may just let it go

Eyah!I just got back from Alaba today where I got PWM 60A 12/24/36/48V CC to use while I wait for mine .

Available now

Avr and current limiter - 7k
Fangpusun mppt 50amps - 58k
Lumiax 40a mppt(Bluetooth/mobile app compatible) - 60k (1 unit left)
Digital programmable timer (limited quantity)- out of stock
DC surge protector device (SPD) - 8k
Epever 40amps triron with ds2 display - 75k
Epever tracer 60amps mppt controller - 125k
Ha02 battery equalizer - out of stock
Souer 12v 40amps smart battery charger - 24k
Quanta amaron 200ah original white carton - 144k

You can reach out for prices of Items not listed.

Call - 08117398294
Chat - https:///message/A6KTUKKB3DGJG1

omotoda:


Eyah!I just got back from Alaba today where I got PWM 60A 12/24/36/48V CC to use while I wait for mine .

Alright boss. Still good.

odimbannamdi:


My Oga,

I have one (60v variant) on ground now that i may not use until about 2 months time. If you make me a decent offer, i may just let it go

How much?

Hello, my foundation is trying to build a community borehole in a village as well. Please share what option you used, the cost implication and how its worked so far. We intend on using a 28l tank. Thanks

nonoski:
Good day house
I'm trying to put up a borehole project in the village somewhere in Anambra State.
It's a village project that will be automated since nobody will be in the house most often time.
Which of these two options would u pick

Option 1: use Solar powered submersible (2HP) with automatic float switch.
The submersible is connected directly to the solar array without the use batteries nor inverter.
The solar array required is 1.8kw or more.

Option 2: use a regular 2hp submersible pump and get an inverter + Solar setup.
I am thinking of getting a 6.3kw solar array connected to a 600amps 48v battery bank using 2 Charge controller and 1no 5kva inverter.

My issue with option 1 apart from lower overral cost is that I have seen it installed in many places and the submersible pumps are usually prone to failure.
The solar array will only be used by the borehole.

While option 2 apart from powering the borehole between 11.30am - 2.30pm will also power the house.

ojeysky:


How much?

My Oga, based on who you be. I dey your whatsapp...

obawale:
ORDER YOURS NOW! ONE YEAR STANDARD WARRANTY!!!

Makeskyblue 60A MPPT Solar Charge Controller with Wifi function (75,000)

100% MPPT controller

Intelligent Maximum Power Point Tracking technology

Built-in DSP controller with high performance

Automatic battery voltage detection 12V/24V/36V/48V

Three-stage charging optimizes battery performance

Multi-function LCD displays

Output limited current protection

Overcharge protection

Over-temperature protection

Easy to be mounted on the wall

No need an extra device to be in parallel

No limited quantity to be in parallel

Easy to set for lithium battery

Suitable for battery types of sealed lead acid, vented Gel, and Lithium battery

Contact,
0802-386-1665
WHATSAPP::: https:///2347034051302

You try sir!75k?You try!!!

Good day everyone,

Please what's your advice on the best way to power a 30,000 l tank community borehole.

Thanks.

From a power supply point of view, what really matters is the size of the pump(s) to be used with the tank and how many hours of run time for the inlet and outlet pumps.

People have had success with solar powered DC pumps but I encourage an holistic view of the system design and then let your power needs be developed off that.

lat55:
Good day everyone,

Please what's your advice on the best way to power a 30,000 l tank community borehole.

Thanks.

abbeymighty:
Please I need a competent installer for solar panel installation around ikorodu.

Contact: 08130541916

Saipro:

- open-box Victron Quattro 48/5000/70 (5kVA 48VDC) - ₦780,000
- Victron VE.Direct 375VA 48VDC inverter (no charger) - ₦60,000
- Victron BMV 702 (with shunt and cables) - ₦100,000
- Fangpusun display (for inverters and chargers) - ₦20,000
- Midnite SPD 300V AC/DC surge protector - ₦60,000
- Midnite MNPV8HV-DISCO 4X disconnect/combiner box - ₦360,000
- 300W Yingli panels - ₦35,000 (used)

- MC4 connectors
- MC4 splitters/combiners
- Midnite 250 Classic KS

WhatsApp/Call O8O396l2l47

I'm wondering if you or anyone still have the victron 375va inverter for a good price?

omotoda:


You try sir!75k?You try!!!

Boss, e shock you sef abi?...

odimbannamdi:


Boss, e shock you sef abi?...

Chairman ,e pass shock ooii.We all know how much this thing is nah.A fair margin wouldn't be bad.But at this price................

Good evening everyone,

It my first time posting an item for SALE on this thread...

G Power MPPT SCC 120V/80ah 3 Input Phase for sale.

Price: 150k

State of the SCC: Never been used before.

Location: Kano and can be delivered to any location in Nigeria (Cost of delivery on the buyer)

lat55:
Good day everyone,

Please what's your advice on the best way to power a 30,000 l tank community borehole.

Thanks.

30,000liters,
Wow thats a massive project.
There are so many variables involved, not so easy to give you a direct answer...

1. Whats the budget?
2. Is the plan to sink only 1 borehole to feed the tank or several?.

3. What is the expected daily water demand.
4. Do you want the tank to be filled at all times?.

To save cost, and simplyfy things i would advise for a battery less inverter, and go for grundfos submersible pump, say 4hp to 8hp.you need a pump capable of supplying 7k liters per hour, if you ever hope to fill up the tank daily.

Grundfos pumps are pricey asf, but they are install and forget .

If you are on a budget, then i would advice you sink 2 boreholes and put cheaper chinese sumbersible pumps of similar rating, however you may need to be changing them after a couple of years...

omotoda:


Chairman ,e pass shock ooii.We all know how much this thing is nah.A fair margin wouldn't be bad.But at this price................

Just like some people advertising Epever 60a pwm controller for 50k on Jiji when it's about 20k on Ali. There are also many ridiculous prices of some other products I see there.
I just laugh...

We are too enlightened to be cheated (google is always there to rescue. )

I won't mind paying 30k for something of 20k on Ali if I'm desperate but paying more than twice the price, is a no-no.

It's a free market, but set prices with sense else people will think you are out rip them off in broad daylight

Hello house. I'm trying to make inquiry for someone. Anybody here who have used or who knows who have used the Felicity 12V 200Ah SMF battery for more than a year? What's your experience?

Have heard like 2 negative reviews about the battery...

Thanks