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I'm going through voltage selection decisions now myself over SHiB LTO 2-3v 20ah prismatic cells

I am in exactly the same situation, I build my battery packs in multiples so that they can feed 24v or 48v inverters in the future when my 12v 2k inverters don't cut it anymore

It's the 2.0mm equivalent to the plug on most Bluetooth modules. The JBD store on AliExpress has the UART display with either 2.0mm or 2.43mm plug. For some reason the cell order is reversed. OverkillSolar Bluetooth adapters have the larger, BatteryHookup adapters have the smaller plug

BatteryHookup has the Panasonic SHiB LTO 20ah for $18

You're already considering a series/parallel swap, so put on a good 8S active balancer while charging. BTW, a 2nd charge controller sounds like a better option...

Not your best option. Because your cigarette charger is probably 12v, your only option is a plug in boost converter capable of dealing with your battery's needs. Keep in mind whatever you get, you're still limited by the lighter's fuse rating, and the engine will need to burn a lot of gas for a...

I built a couple of 4S8P packs with the Topband 25Ah cells from BatteryHookup, the more recent batches, not the green shrink Novitas. They have performed really well despite being in my Texas garage. Last summer they made it through probably 20 days where the temp in the garage exceeded 100F. I...

I know this is an old post, but the problem of finding or fabricating busbars still sucks! I needed busbars for Topband 25Ah cells in a 4S6P pack. I found a great solution, my wife found a 100' spool of 12awg pure copper solid building ground wire at a clearance sale ($10 for 100'). I stripped...