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Newbie here and I just order a set of 20 Lishen 272Ah LiFePO4 cells two build two separate battery configurations. One will be a 12v - 4S (4 x 3.2v cells) bank and the other will be a 24v - 8S2P (16 x 3.2v) 544Ah bank. I am looking at buying a Heltec BMS for each of these systems. Would the two...

Ok, thanks! I wasn't sure of best practices for the larger bank. Can all 16 cells be a series connection? Should they be? Which way is preferable?

What charge/discharge amp rates should I be looking for, for these configurations?

So who makes them besides from DCS Interesting. I contacted them in October and they told me that they don’t have any starter batteries and that their batteries are suitable for House applications only.

Thanks! I will contact them.

Thank you! Good to know!

Has anyone purchased these batteries before or similar battery from a similar vendor on Alibaba? I was planning to build an 8 cell 24v - 272Ah Lithium bank but this battery in the link below is about the same or less than it would cost to build...

According to the Vice President of Relion they only make starter batteries for outboard fishing motors and other accessory items. Not for cars, RV’s, etc.

Has anyone ever attempted to build your own Lithium Starter battery for a car? DCS makes one that you can start your vehicle with and even use for winching. I’m just wondering how one might go about increasing the CCA in order to match AGM and Lead Acid Batteries...

I could use everyone’s input on my latest solar installation plan. I plan to build two Lithium solar systems. A larger 24v system using 8 x 272Ah cells that will go in my camper van conversion and a smaller 12v 4 x 272Ah system that will go in my current vehicle. The van hasn’t arrived so I...

@Positronium Newbie question: So if I assemble eight of the 100Ah 3.2v Cells from Overkill Solar what will be the total output capacity? Is the math as simple as 800Ah total?

Hi Everyone! I just joined the forum and I am relatively new to solar so I thought I’d jump into the deep end right away and build a DIY LiFePO4 System for the Camper Conversion of a Mercedes 814DA that I purchased recently. Just to give a bit of reference, the van is the older, big brother of...