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An update, my two batteries seem to be working fine and now with monitoring are better than when they were new. I did not realise the Rover controller lithium profile does have one option to set the Boost Voltage which I set to 13.8v (x2). Also since then I have replaced the Rover controller...

My BT modules arrived from China today and here is a few screen captures. They both don't seem to be set to the same battery capacity and both have two low temp warning (one shows four but that was me testing low temp cut off). The most common error seems to be cell under and over voltage. Now...

An update, I gave the two batteries a nice slow charge and on discharge I got the following capacities (they should be 640Wh). 609.13Wh and 582.79Wh so they are far from dead. Questions, what would make the jbd-sp10s020 BMS units need to have their balance cables unplugged / plugged back in to...

Time to cut them open like Will Prowse would :) I did it outside in case something nasty happened which it did not. The BMS used is a jbd-sp10s020 which seems pretty generic and they do a BT module for it. Only one temperature sensor attached to the side of a cell. The first battery had a...

I have asked them what the correct operating temperature range is (the same operating range information is on most of their batteries). And it only got down to -4c nowhere near the -20c minimum. I understand a quality BMS would turn off the output at 32f / 0c to protect the battery and with...

Hi, the load output feeds a Victron 24v / 250Va inverter which then powers the aerator pump. The load is 1.6 Amps @ 24DC

I have had two of these powering my septic tank aerator with 800 Watts of Renogy solar panels and a 60 Amp rover controller. The load is off the load output of the Rover. I bought these batteries as an upgrade to the EcoWorthy ones and they have been in service for about a year. Anyway, I...