₦airaland Forum

Tdoctor:
-
Bro, I'm willing to take the risk. I counted the cost before jumping in.
I am adept with tubular batteries and have so many tools for managing them. I have given out some tubular batteries to relatives because I was very confident of how I managed them, and they are still using them happily without issues.
-
Unfortunately, LFP is a different technology, so I am facing the reality of purchasing new tools.
I have considered your post, and will buy the special tools. From study, I'm thinking, a precise DC charger, a bench DC supply, etc. I already have many electrical tools, but I would appreciate it if you can give me an idea of what specific tools I'd need.
-
The initial price for DIY is expensive but it pays in the long run. For instance, I can now deduce that sometimes when an installer tells you that your lithium battery needs replacement, it may be just one or two cells that are misbehaving. You can simply replace them yourself.
You can also more tightly regulate the charge and discharge levels of your batteries, for better longevity.
You could install an additional active balancer, and switch off the one in the BMS.
-
When I started the solar journey, I knew next to nothing, but this year, I installed a 15kva system by myself without any professional installer, with relay systems, timers, and automatic light and water pump control. I have enjoyed my development so far, and I'm willing to still learn.

Tdoctor:
-
Bro, I'm willing to take the risk. I counted the cost before jumping in.
I am adept with tubular batteries and have so many tools for managing them. I have given out some tubular batteries to relatives because I was very confident of how I managed them, and they are still using them happily without issues.
-
Unfortunately, LFP is a different technology, so I am facing the reality of purchasing new tools.
I have considered your post, and will buy the special tools. From study, I'm thinking, a precise DC charger, a bench DC supply, etc. I already have many electrical tools, but I would appreciate it if you can give me an idea of what specific tools I'd need.
-
The initial price for DIY is expensive but it pays in the long run. For instance, I can now deduce that sometimes when an installer tells you that your lithium battery needs replacement, it may be just one or two cells that are misbehaving. You can simply replace them yourself.
You can also more tightly regulate the charge and discharge levels of your batteries, for better longevity.
You could install an additional active balancer, and switch off the one in the BMS.
-
When I started the solar journey, I knew next to nothing, but this year, I installed a 15kva system by myself without any professional installer, with relay systems, timers, and automatic light and water pump control. I have enjoyed my development so far, and I'm willing to still learn.

AndroBlaze:
You will be fine.

His suggestion is clearly not meant for the likes of you with experience.

Dam5reey:
Very long time. It's means you have no idea about the latest technology.

HeavenlyBang:
That's how they all are. At this point, when buying cables you need to go a size up from what you actually want, unless you're willing to go measure the cables with a caliper or something.

dollarnaira:
Na here I hear say diy is expensive.
Those who seek for esthetic will see it so.

dollarnaira:
Na here I hear say diy is expensive.
Those who seek for esthetic will see it so.

HeavenlyBang:
DIY IS expensive.

There's the monetary expense that comes with buying tools and materials at retail prices, and then the time expense, opportunity cost, actual stress and effort plus having to troubleshoot when things eventually go wrong.

Recently I wanted to build a 12v battery to use as an auxiliary battery on my car. By the time I calculated the things involved, I jeje went to buy it from a guy selling it on the lithium thread. It was much cheaper than if I'd tried to build it myself, simply because I don't even have the tools.

On a side note, using lead acid + LFP in parallel on a car seems to work like a charm. LFP handles the idle drain, while the LA takes over when cranking.

HeavenlyBang:
DIY IS expensive.

There's the monetary expense that comes with buying tools and materials at retail prices, and then the time expense, opportunity cost, actual stress and effort plus having to troubleshoot when things eventually go wrong.

Recently I wanted to build a 12v battery to use as an auxiliary battery on my car. By the time I calculated the things involved, I jeje went to buy it from a guy selling it on the lithium thread. It was much cheaper than if I'd tried to build it myself, simply because I don't even have the tools.

On a side note, using lead acid + LFP in parallel on a car seems to work like a charm. LFP handles the idle drain, while the LA takes over when cranking.

HeavenlyBang:
DIY IS expensive.

There's the monetary expense that comes with buying tools and materials at retail prices, and then the time expense, opportunity cost, actual stress and effort plus having to troubleshoot when things eventually go wrong.

Recently I wanted to build a 12v battery to use as an auxiliary battery on my car. By the time I calculated the things involved, I jeje went to buy it from a guy selling it on the lithium thread. It was much cheaper than if I'd tried to build it myself, simply because I don't even have the tools.

On a side note, using lead acid + LFP in parallel on a car seems to work like a charm. LFP handles the idle drain, while the LA takes over when cranking.

dollarnaira:
When tools are already in the picture, it has gone beyond diy. When diy is looking professional i.e esthetic then you will spend more since you are just building one.

My diy definition is combo of stuff that delivers same or better output than "beautiful" boxes out there. All na packaging...

A simple 12v 4kwh is a set up with just adhesive tape. Na una dey find beautiful box. At the end of the day it will out put 220v to run home appliances. This is my angle of diy as I don't follow crowd. Na sense bro.

HeavenlyBang:
In my case, for example, I needed a spot welder because I'd have been working with cylindrical cells. Cheapest spot welder I could find already cost more than I eventually spent on the battery.

JoeSef0:
How did you create space for 2 batteries inside the bunnet and also how did you configure it to make the lfp work for idle drain and not the 2 batteries?.
Lead acid batteries are so annoying. The solite made in Korea battery i bought about 13 months ago for 85k now barely cranks my engine after leaving the car idle for more than 24hrs.i now have to remove the battery head if I don't have plans to use my car in 2-3 days otherwise i have to run the car for 5-10 mins every day to keep the battery alive... Annoying ‼️

dollarnaira:
Shey b na u wan spot weld.
Cheap tins are just around you..
Baba na sense

HeavenlyBang:
Abeg show me way. Almost tried soldering but heard it bleeps up the resistance.

HeavenlyBang:
Ran the cables from the engine bay to the glove compartment. Right now it's a 75AH lead acid in parallel with an 18AH LFP, the LFP sits inside the glove compartment due to space and thermal constraints.

So far so good. LFP battery supposedly has a 20a dumb BMS, though I haven't opened it up to check. Car itself is a Mercedes and has an intelligent charge control unit so charging is pretty safe. The LFP charges at around 13.7v to 14.1v for the most part, which is within spec.

You don't need to configure anything, the LFP just acts as a buffer for the idle drain. Please do your tests properly, since I don't know what car you'd be using it on.

dollarnaira:
Diy of Africa Nigeria Lagos Ikorodu
4kwh wey pump water. Na sense

dollarnaira:
Na lie oooo.
Lithium ion or LIFEPO4.
I remembered out of longer throat, I bought 4 pieces of 23ah cylindrical cells from Valto last year just to satisfy my curiosity. Soldered just 3 wires to make it 12v finish.

dollarnaira:

dollarnaira:
When tools are already in the picture, it has gone beyond diy. When diy is looking professional i.e esthetic then you will spend more since you are just building one.

My diy definition is combo of stuff that delivers same or better output than "beautiful" boxes out there. All na packaging...

A simple 12v 4kwh is a set up with just adhesive tape. Na una dey find beautiful box. At the end of the day it will out put 220v to run home appliances. This is my angle of diy as I don't follow crowd. Na sense bro.

Unfaized:
On a full charge, how long does the 4kwh battery last u on basic loads only?

dollarnaira:
Don't wait to go big before going into "SOLAR".
Got a call from a friend who now eat and dine with darkness. Kids now go to the neighborhood just to charge phones and laptops. Cost of running generator is something else.

I had to install a 190w pv, 12v 24ah lithium ion(about 300wh) and a 20a mppt cc. As small as it is, all 6 to 8 phones, 3 laptops, a router etc are charged with it. He was waiting to go big but the time never comes bc the economy is getting harder each time.

Don't wait till you go 48v before you taste free freedom of energy as all it requires is just sense.

HawkTuahGirl:
Please help me.

I need this kind of small setup. As in, where and who to buy from. I can install myself. I trust you will guide me well. Thanks

HeavenlyBang:
DIY IS expensive.

There's the monetary expense that comes with buying tools and materials at retail prices, and then the time expense, opportunity cost, actual stress and effort plus having to troubleshoot when things eventually go wrong.

Recently I wanted to build a 12v battery to use as an auxiliary battery on my car. By the time I calculated the things involved, I jeje went to buy it from a guy selling it on the lithium thread. It was much cheaper than if I'd tried to build it myself, simply because I don't even have the tools.

On a side note, using lead acid + LFP in parallel on a car seems to work like a charm. LFP handles the idle drain, while the LA takes over when cranking.

Drgreatone:
U using the 2 batteries simultaneously or i dont get? A picture too would be helpful if yes

JoeSef0:
How did you create space for 2 batteries inside the bunnet and also how did you configure it to make the lfp work for idle drain and not the 2 batteries?.
Lead acid batteries are so annoying. The solite made in Korea battery i bought about 13 months ago for 85k now barely cranks my engine after leaving the car idle for more than 24hrs.i now have to remove the battery head if I don't have plans to use my car in 2-3 days otherwise i have to run the car for 5-10 mins every day to keep the battery alive... Annoying ‼️

bassdow:
first explain this to us "Earn N150k Monthly Rent On Your LinkedIn Profile" + pros and cons.

meanWhile, just looking at the pictures suppose don give you idea. Once again, DIY ain't for everyOne

HawkTuahGirl:
DIY materials are not something you buy across the street. I have 200 watts fake panel i got from jumia, just because I didn't get the right information.

Please if you have anything to say, just shut up my request was not directed towards you.