₦airaland Forum

BetaTechnicians:
sure but if a Gokada can take me to and fro, why disturb an uber?

Dudeonyx:
Hi, I'm new to this and trying to research as much as I can about solar systems so I can get a good system that will serve me well.

From what I've researched about LiFePo4, a 50ah lifepo4 battery should be equivalent to a 100 ah lead battery since those only have about 50% usable capacity.

If so this makes Lifepo4 batteries have the same price as lead acid for the same usable watt-hours.

BetaTechnicians:
The bulk & float voltages just need to be set to same value, right?

earthrealm:
Nope, my cc is 24v 50amps mppt fangpusun with inbuilt display, so it can handle it

#Aliexpress NGN 23,450.73 | SHYLIYU 1" Outlet Stainless Steel Screw Water Pump 3" OD Pipe 0.33Hp Submersible Deep Well Pump 20m Cable Centrifugal Bore Pump
https://a.aliexpress.com/_dXeMPP6

This is another sweet one, 12v 6000Lph 180w, only slight draw back is the lift is 45m, unlike the other with lift of 70m

#Aliexpress NGN 16,705.67 20%OFF | 45m 12V Solar Water Pump High Lift 6000L/h Deep Well Pump DC Screw Submersible Pump Agricultural Irrigation Garden Home
https://a.aliexpress.com/_dWrPX5A

mctfopt:
To add to what has been said, you are better off with an MPPT SCC as most of it are customisable. You can change the voltage at which your battery charges, a feature which I doubt you'd get with most PWM.

BetaTechnicians:
ojeysky, ceasar and other lifepo4 users, how would you advise using a pwm cc to charge a lifepo4 battery?

earthrealm:
The existing setup is 12v x 200ah battery, hooked to 2 x 250w panels, my fear is that the extra strain of running the 250w pump for 2 to 4 hrs daily, may be draining the batt badly, especially during poor weather...hence my uncommon plan to put 2 3xtra panels on timer...

I intend to wire it up with a float switch as well, to control tank fill up and pump shitdown as the setup is designed to be purely autonomous since its its in the villa and no knowledagble person around

@ aliexpress, yes received items from there, but hvnt oredered the pump yet.
Learnt nipost hv suspended ops for 2wks, so AliExpress purchases are a bit dicey now

NiyiOmoIyunade:
You should use a cable size vs distance chart.


In general;

10MM2 Cable is rated for about 40A Max

16MM2 Cable is rated for about 60A Max

For your specs you are better off with 25mm2 from each CC to battery and then 35mm2 mimimum for your *common* battery interlink or bus bar distribution.

For the CC yielding 18amps, you can cheap out and keep 10mm2 cable but as you add more panels, you will ultimately upgrade to thicker gauge cables - might as well bite the bullet at once

mctfopt:
That's why we love lithium, see high amperage dey flow like water. You can upgrade to 16mm² cable to prevent the cable insulation from thermal derating.

idefua:
Good day sunny,
My inverter is in Overtemperature Protection Mode, caused by Thunder and Lightening that occurred yesterday evening while it was raining. Switched off the inverter several times to reset; failed, still in alarm state.
How do I rectify this fault? Thanks.

Dam5reey:
China, that has open almost all factories..

I don't think Corona will stay that long on the panels..

justcallmenuel:
260w felicity mono solar panel just arrive, offloading currently going on. Start making your orders now. Call/WhatsApp us on 08168986461.

BetaTechnicians:
You can buy locally, I know an accredited seller. Though price may differ.

BetaTechnicians:
same with lead carbon I believe.
still observing...

olatade:
I need me one of this. It's cheap compared to other lithum products.

Openbusiness:
What of Fulani herdsmen moving around from state to state, country to country, chad today, Libya tomorrow, then all of them still congregate in Nigeria roaming across the length and breath of this country with ak47 because their grand patrons cabal are running this dictatorship regime? Las las na dem go still spread the virus like MTN everywhere u go

Dam5reey:
If In reality, 24V 100AH is 350k then it's a good buy.. compared to battleborn. And Victron or even DIY

saint2ace:
China will not kill us

eleojo23:
Just type 'Anker Soundcore Motion Plus' in the search bar

Akanbiedu:
All of you that wish our president death will not die well.

Can I hear a loud amen?

Dam5reey:
Anker Soundcore Motion+

spartacus11:
Can one use this CC for lithium batteries

mctfopt:
There are cheap 10-cell 18650 powerbank case from AE why not buy one and get the expansion and higher capacity that you need?

zeanslim:
I used a 60amp bms from AliExpress, but I jump the BMS to start the motors, I don't trust does chinko stuff and I haven't tested using via the BMS,

..I think it's safer tho ..cause I just need to plug the battery for few seconds before disconnect

SoNature:
Nigerians don't like this country

The earlier we realize that and divide the country, the better for everyone

You can't attain progress where there's no love for one's country

zeanslim:
I use 18650 cells holder, they create space to prevent shorts and reduce heat. Which is more better I have like 1000 of them gotten from AE.

And I just even use my battery pack to start a car and generator today. Directly.

mctfopt:
Do you own a spot welder? I noticed that it appears as if the cells are soldered. Interesting that just a few of the cells took the hit. Also when running the test on the cells, try charging each at 1A and check for any that is unusually warmer than the others, that one will be a torn in the flesh even if it passes your test if connected with others without high temperature issues.

zeanslim:
The cells ain't insulated that's why

earthrealm:
hv added the pic, forgot to add it earlier

ojeysky:
These are rated 3.7v if am right and if you have them in 4S that will be 14.8 nominal and typical max on a 12v chargers is 15 to 16v so I don't think you will be hitting the max voltage often like that of Lifepo4 which is 12.8 normal. Perhaps it's the reason you've gotten away this far, but I still think you should have a BMS on them. It's better safe than sorry.