[LotusElite]

A few years ago I mistakenly left the DC/DC charger on before going on a long trip. When I returned, over a third of my pack of 45 CALB CA180s were toast. After a long period of mourning and denial, I'm ready to get my EV up and running again, but need to test the remaining 28 batteries that didn't go to 0V to determine if any can be salvaged. Are there some affordable test instruments that can do this reliably? Any advice would be appreciated.

Scott

 

[LotusElite]

Thanks, All. Here are more details.

I have three banks of 8 (2P4S) and one of four. They all charged up fine and have maintained ~3.35/cell when paralleled and after the bus bars were removed. That's a good sign, but since a number of the cells were discharged to <2V I suspect they would be weak links in a 150V string. Right now I'm using a resistance coil to discharge them individually but that is tedious.

That ZKE unit looks promising; has anyone used it? I'm also considering one of the hacks.