Hello, i know it is a Lipo topic but i think it is the best place to ask about.
Today i get 2 batteries like this:


And i am planning to use it as my outdoor power supply for my Lipo charger.
I think my charger ISDT 608AC can charge this type of battery PB.
But i am not sure what current and voltage should i use.

Here are datasheed from producent: Data
According to this, should i charge it at 0.05C current? 0.375A ??

Recommended charge rate is 0.3C but lead acid battery can be charged up to 1.5C. Of course, the faster you charge the shorter the life of the battery. So at 0.3C, you are looking at 2.25A charge rate.

https://batteryuniversity.com/learn/arti...id_battery

I forgot to explain why the data say 0.05C. That is for a single cell. A 12V lead acid battery has 6 of these single cell. Therefore 0.05 x 6 = 0.3C.

Thank you very much for answer and claryfication.

(23-Mar-2020, 07:53 PM)voodoo614 Wrote: I forgot to explain why the data say 0.05C. That is for a single cell. A 12V lead acid battery has 6 of these single cell. Therefore 0.05 x 6 = 0.3C.

Is that math correct though?
12v SLA batteries have 6 cells in series, meaning the charge rate in Amps would be the same for one cell or the whole battery?

Edit: 0.3C is correct regardless, but I think the corellation of the 0.05C may be from elsewhere?

(23-Mar-2020, 11:27 PM)bffigjam Wrote: Is that math correct though?
12v SLA batteries have 6 cells in series, meaning the charge rate in Amps would be the same for one cell or the whole battery?

Edit: 0.3C is correct regardless, but I think the corellation of the 0.05C may be from elsewhere?

I think you are right. Let me rethink this.

So 0.3C should be correct for SLA batteries.

I reread the datasheet, the 0.05C is referring to max ripple. I read that SLA wants smooth constant charge rate. Hence the recommendation to minimize the ripple to less than 0.05C.