Got 3 of these <used> BYD 24VDc battery packs from BatteryHookup. Connected a Victron 100/30 with 2x 290Watt Solar Panels and charged it up to 27V.
After 2 days I connected in the ISDT BatteryGo BG-8S and it looks like I have 1 dead cell and another one really bad. So I hit the button and told...