Hi all, in process of building my first powerwall module (7S100P about 6kWh). Absolutely love this project and have had zero issues sourcing, building and setting up the BMS system.
Now that I have the packs together, I needed a convenient way of attaching cell monitors. So I designed an universal holder to clip into the widely popular 18650 cell holder framework.
You can check it out and try it out here: DIY BMS V4.20 Cell Monitor holder by Thucar - Thingiverse
Nice. This is a project I would like to get to grips with someday so please keep posts going if you can.
Any ideas on how to store old 18650’s. I have about a dozen in the shed slowly dying but no idea how to preserve them, how do you do it?
@SteffanCook Make sure the charge level is at the manufactured recommended (Usually around 3.72V) and just keep them as stable as possible temperature/humidity wise.
Charging them to a known level and checking the cells again when you take them into use, will also let you see if any of the cells have a tendency to self-discharge over time.