Donbigi2:
I have a setup I bought 70k.
70ah battery
500w inverter
Since I need to power my freezer I don't need solar.
My set up last 4hrs.

I need one that can last at least 10 hrs.

Complete novice here. I need the cheapest I can get possibly 200ah battery and invert (already have a buyer for my current one)

oldienavie:

Bros can you please share a picture/information about the type of hotplate that you use with this please ?

samnaija:


Here we go again. To All , this man has a big battery bank whether lithium or lead it's easy to take that much from your bank so far it is a big bank. The word is big bank .

Now to first timers entering renewable energy and you don't have his kind of large bank , you buy a small scale bank and try it , your cycle of battery will be halfed in no short time.

dollarnaira:


Tear each apart bro.
U only need to create a new negative terminal to enable u to run 10 psc as 12v.

U were only faster dan i thought as per d above discovery.

The problem here is how to charge each cell full be combining dem i.e top balance each.

ojeysky:


You can't take that much from a LA of 510AH 48v and still be above 52v, so not as easy for LA.

samnaija:


You seem to like this LA and lithium talk.
The message is for new entrants into renewable energy.
You just stated your size of bank again, that is why you can confidentiality use all your appliances. Someone said you can get away using heavy load regular,with a smaller lithium bank, how? and why?.

Battery chemistry either lithium or lead has a shelf life or number of cycles before they pack up. If you have a large load on a small bank no time soon you go change naira to dollar.

And by the way I take more than 100 amps from my lead on good sunny day, my battery will sit comfortablly at 55v. While All the chores in the house being done.
My bank is a mere 48v 600ah,but my panel arrays do their job diligently

ojeysky:


Bro that's not from your battery it's from the sun god....do it at night Bro and share screenshot, it's good we have similar AH capacity.

The obvious message that needs to be passed across to new entrants is that it's easier and safer to pull(or put) more current to lithium than LA without it having any negative impact on the cell. You can actually do 100A from a good 100AH lithium so long as the connection components are well spec'd for it.

ceaser:


I don't see the bolded as a problem. There are chargers that have been designed to charge different chemistries (Li-on, 1.5v Ní-cad and 9v Ni-cad) all in one chargers.

The potential problem is tearing each apart!

They appear welded together at some point halfway between the lenght of each individual cell. Even if I can successfully get an object in between successive cells, it definitely won't be a metallic object, and it will have to be a small weld to be able to pry them apart easily.

Nonetheless, I'll find ample time to also try that out.

ceaser:


I don't see the bolded as a problem. There are chargers that have been designed to charge different chemistries (Li-on, 1.5v Ní-cad and 9v Ni-cad) all in one chargers.

The potential problem is tearing each apart!

They appear welded together at some point halfway between the lenght of each individual cell. Even if I can successfully get an object in between successive cells, it definitely won't be a metallic object, and it will have to be a small weld to be able to pry them apart easily.

Nonetheless, I'll find ample time to also try that out.

sethtsadopp:
I'll like to know, when planning an off grid system, should more focus me on a bigger battery bank or on a bigger PV Array? And Why?

samnaija:


If you say so , please keep drawing that load at night and come and tell us the outcome.
I have nothing to prove, go ahead Keep it up at night. Cheers.
Na money I use buy my battery, I treat them like babies. Don't abuse them they will abuse you back.

ceaser:


150 amps instant draw from a well spec'ed bank of 48v 510 ah is not ABnormalUSE. It's called judicious use.

I'm not sure I can boldly say the same about similar bank of LA.

How much d'you think is drawn by EVs?

sethtsadopp:
I'll like to know, when planning an off grid system, should more focus me on a bigger battery bank or on a bigger PV Array? And Why?

ojeysky:


That's what it looks like

samnaija:


my brother did you not read ,what I wrote I said cheers. He has a pure water factory to operate at night, let him use it regularly.

toluxa1:


Is this not induction?

sethtsadopp:
I'll like to know, when planning an off grid system, should more focus me on a bigger battery bank or on a bigger PV Array? And Why?

saint2ace:



The bolded is quite unnecessary as verifiable facts has proven that lithium batteries can withstand higher amps draws than Lead Acid, it's that simple.

I have personally done a 120a draw on a 12v 100ah with a 200a BMS slapped on it.

While we express our views based on whatever scenerio, let's do it with a pinch of decorum. Cheers.....

gadgetplanetng:


Alaba seller panels to Auxano Panels from manufacturer

NiyiOmoIyunade:
Savvy folks like you should be wary of putting out info in this manner so as not to mislead non technical people.

One could run a 120a load on a 100Ah Lithium bank or a 100Ah AGM bank no trouble - in both cases the backup time will be super short (less than 1 hour) as peukert is real for all battery chemistries.

What am I trying to say? It is impractical to use a battery this way in a residential setting as people want a battery to carry them over several hours - practically, most people will not use their battery above an average C10 discharge regardless of the type.

With the Lithium packs, we all know that there is the integrity of the connections to consider as things may get hot very fast at high C rates - yes Lithium is the superior chemistry and will last longer than similar lead acid under harsh use conditions but no one I know uses his Lithium battery pack 1C or more in a residential setting.

samnaija:


You seem to like this LA and lithium talk.
The message is for new entrants into renewable energy.
You just stated your size of bank again, that is why you can confidentiality use all your appliances. Someone said you can get away using heavy load regular,with a smaller lithium bank, how? and why?.

Battery chemistry either lithium or lead has a shelf life or number of cycles before they pack up. If you have a large load on a small bank no time soon you go change naira to dollar.

And by the way I take more than 100 amps from my lead on good sunny day, my battery will sit comfortablly at 55v. While All the chores in the house being done.
My bank is a mere 48v 600ah,but my panel arrays do their job diligently

TechGeek777:


Hello bro,

1. Is you battery 150Ah * 4?

2. Which model of battery do you use, like Luminous, Trojan, Rita etc?

3. What's your solar array?

4. At what rate do you put/pull @C10 or @C20?

TechGeek777:


Hello bro,

1. Is you battery 150Ah * 4?

2. Which model of battery do you use, like Luminous, Trojan, Rita etc?

3. What's your solar array?

4. At what rate do you put/pull @C10 or @C20?

TechGeek777:


Hello bro,

1. Is you battery 150Ah * 4?

2. Which model of battery do you use, like Luminous, Trojan, Rita etc?

3. What's your solar array?

4. At what rate do you put/pull @C10 or @C20?

Donbigi2:

Do you know where I can get genuine battery? 200ah or 220

zeestone99:


My broda. I can't see all messages. Many of this things have been discussed in previous threads. It's not that easy answering same questions you have answered previously 20 times over. The one I see I give my fair share of ans. The ones I don't see someone's else ll. To b honest I didn't see your question. We learn everyday, it's not the end.

Elcapitan0:

Please help me shed some lighton this.
I have a battery and a 1.1kv inverter for just my securitylighting

zeestone99:


Ok so? What do you need

You were faster than me

NiyiOmoIyunade:
Savvy folks like you should be wary of putting out info in this manner so as not to mislead non technical people.

One could run a 120a load on a 100Ah Lithium bank or a 100Ah AGM bank no trouble - in both cases the backup time will be super short (less than 1 hour) as peukert is real for all battery chemistries.

What am I trying to say? It is impractical to use a battery this way in a residential setting as people want a battery to carry them over several hours - practically, most people will not use their battery above an average C10 discharge regardless of the type.

With the Lithium packs, we all know that there is the integrity of the connections to consider as things may get hot very fast at high C rates - yes Lithium is the superior chemistry and will last longer than similar lead acid under harsh use conditions but no one I know uses his Lithium battery pack 1C or more in a residential setting.