Boomtown
New Member
Edit: sunshine_eggo found issue, the spark while I was hooking up the batteries activated the PCB's shutdown process. I still don't know the max discharge amps, but will test to discover.
I have 4 Tenergy 12.8v 40aH batteries, connected them in series (56.4v, looks good, fuses fine), and connected them to my LV6548 hybrid inverter. The battery is not detected. The voltage drops about -1volt/second for 10 seconds, then quickly down to about 30v.
I don't have a BMS, but the batteries have PCBs (power control board). The max battery charge rate is 15amps, but I don't know what the max discharge rate is.
I have my LV6548 set to a "maximum battery discharge current" of 30amps, the lowest setting (edit: same voltage drop result when I set this to "disable")
1) should I get 4 more? Then run 4S 2P and assuming the max discharge is the same as the max charge, 15*2=30 amps
2) is there something obviously wrong here, like the batteries are way too small or a BMS is a necessity?
I have 4 Tenergy 12.8v 40aH batteries, connected them in series (56.4v, looks good, fuses fine), and connected them to my LV6548 hybrid inverter. The battery is not detected. The voltage drops about -1volt/second for 10 seconds, then quickly down to about 30v.
I don't have a BMS, but the batteries have PCBs (power control board). The max battery charge rate is 15amps, but I don't know what the max discharge rate is.
I have my LV6548 set to a "maximum battery discharge current" of 30amps, the lowest setting (edit: same voltage drop result when I set this to "disable")
1) should I get 4 more? Then run 4S 2P and assuming the max discharge is the same as the max charge, 15*2=30 amps
2) is there something obviously wrong here, like the batteries are way too small or a BMS is a necessity?
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