₦airaland Forum

capnies:
Thanks very much.

Are you saying I can connect lifepo4 cells directly to pwm charge controller

Penuelseun:
Yes, You connect the cells to a BMS, then to the charge controller. Set the float and absorb to 13.8v

dollarnaira:
Depends on the size of the battery, a laptop charger and bulk converters are needed.

capnies:
A laptop changer supplies like 18.5v but only 3.5A, how can I booster the current to like 16-21A for say 46ah 12.8v setup

Anabosee:
Good day, I just bought solar panel and inverter, the locally made lithium battery in Abuja, is it safe and efficient? Lithium battery on jumia is 285k but locally made own is 100k , should I buy it or I save for the one on jumia?

Please advise me

dollarnaira:
Chai
Good.
Let me try it out.
Contact?

How many of these do you have?

AnaCheks:
Sir I sent you a mail

omakay:
Yhello my good people..
Abeg, I need someone who can do maintenance on litheum batteries in Warri. Thanks

officialfestus:
3.3kw completed.

Itzlinda:
How much did you spend please

NACE13:
Please, to the senior men here.
My 500w satchet inverter fan just spins but doesn't bring power from the battery when I switch it on. What could be the possible cause and can inverters be repaired?

Secondly, who has an affordable 150w or 200w car inverter.

Thirdly, what can I use in place of an MPPT charge controller if I want to start using solar panels to charge?

Also, who has got any good and affordable(cheap) PSW 1000w inverter for sale?

jstemmanex:
1. Ensure the volts of the battery and inverter are same, if so you may need to take the inverter for repair

3. MPPT is best but you may also get a pwm charge controller

4. Cheap is relative, best to state your budget

NACE13:
1. Do you have an idea who or where I can take it to for repair?

My budget is 30k. For fairly used o.

BangaRice:
you mean those tiny things balance out unbalanced cells?

How big a battery can they handle in your opinion?

I have been muting the idea of using a SLA charge controller{preprogrammed} to charge LIFEPO4 and was already shopping for small LIFEPO4 BMS that can peg what goes into each cell at 3.65V or 14 6V of 4S.

3.5 to 3.6v is ok. Intact 3.5v is very ok. Anything from 3.65v can damage the battery and make it swell.

What i discovered is there are cheap mppt charge controllers that work well but preprogrammed to setting close to LFPs.

capnies:
Please chiefs where can I get solar cables like 6mm between delta bayelsa Rivers and abia

Machiny:
why not buy from linnov. He sent from him from lag to ph

capnies:
Our greatest challenge as battery builders is presentable casings to the customers, how do we solve this.

Woods are not OK atall.

We can use wood for ours but what of our clients

barezy:
Good day to all my Boss in the house
I want to ask if anyone attempted to do DIY spot welder with microwave transformer ?
Have seen a lot of videos on YouTube someone with a successfully attempt while some said it won't weld 0.2 nickel strip, I want to know if anyone has goes through that journey before, or anyone that can shed more light on the process

nke001:
It is quite easy to build, integrating an adjustable timer at the primary side of the transformer makes it easily for you to select how long power will pass through the secondary side. Also, using bigger cable size at the secondary side increase the amount of amperage that can pass through the spot probes without damaging the probes.

Built one I use for my DIY and it worked just fine for my lithium ion spot welding jobs.