Search results

I was curious about this 4 cell active balancer board. It has 4 transformers so it seems to be a stack balancer transforming the cell voltage back to the overall assembly voltage. Tested a slightly unbalanced 280 ah 4 cell pack and it seems to work, some voltage came down and others went up. So...

In my converted city bus we have a 24 Volt system.. there are 4 identical groups of solar panels each with there own tracer / epever / 1210rn. 10 Amp mppt control with a mt5 remote readout. I like the redundancy of several charge controllers and indeed we had one unit damaged several years...

Thank you. Johan

Was lucky.....original images and post edited to delete content as to avoid a useless unrelated discussion. Bms was working, charger failed to shut off, pack was partially used so some cells were not charged.

Here some pics of a small scale project..I need to be able to heat these as it is going to be under my bus.

New lishen 272Ah cells 20% charged in 16 cell series on double cardboard in basement..no connection to anything else. Bad luck caused the dishwasher to release some gray water in the basement. A little soaked up in the cardboard. Did not think much about it. Two days later I noticed a bubble...

Please comment on this proposed build. After reading thru some of the fire / burn threads I changed my design to incorporate space between the battery that can be flooded with water in case of an emergency. The frame is welded from bed frame angle iron. 3/8" wood in the bottom and 1/16" pvc...

After my disappointment / frustration with the chargery 16S BMS I am looking into other smart BMS options. To me it all starts with the accuracy of the initial voltage measurement per cell. All other things relevant depend on that. Kind of surprised that not more attention / data is published...

Evening folks, requesting some help here. After working for several years one of my Tracer 1210RN has quit working. The solar system consists of 4x 75 watt BP/ siemens panels 2 series 2 parallel. Panels are 20 years old and deliver about 50 watts max. Battery voltage 24 Volt 2x 8D lead acid in...