Overkill Solar 120A 4s 12V BMS, Instruction Manual

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Appendix D: BMS Specifications
JBD-SP04S020 JBD-SP10S009
# of cells supported 4 8
Battery pack voltage (nominal) 12V 24V
Maximum charge current (continuous) 120A ​ (configurable) 100A ​ (configurable)
Maximum discharge current
(continuous)
120A ​ (configurable) 100A ​ (configurable)
No-load current when operating 5.5 mA ​ (BMS active, no Bluetooth)
15 mA ​ (BMS active, Bluetooth)
0.8 mA ​ (BMS inactive)
TBD
Pack over-voltage cutoff? Yes ​ (configurable) Yes ​ (configurable)
Pack under-voltage cutoff? Yes ​ (configurable) Yes ​ (configurable)
Individual cell over-voltage cutoff? Yes ​ (configurable) Yes ​ (configurable)
Individual cell under-voltage cutoff? Yes ​ (configurable) Yes ​ (configurable)
Current over-discharge cutoff? Yes ​ (configurable) Yes ​ (configurable)
Current over-charge cutoff? Yes ​ (configurable) Yes ​ (configurable)
High-temperature cutoff? Yes ​ (configurable) Yes ​ (configurable)
Low-temperature cutoff? Yes ​ (configurable) Yes ​ (configurable)
Bluetooth? Optional Optional
Communications port? Yes ​ (5V TTL serial, 9600 8n1, via JST
XH 4-pin connector)
Yes ​ (5V TTL serial, 9600 8n1, via JST
XH 4-pin connector)
Wire length 6” ​ (152mm)
(12” or 24” optional)
6” ​ (152mm)
(12” or 24” optional)
Wire gauge 10 AWG ​ (6mm²)
(8 AWG optional)
10 AWG ​ (6mm²)
(8 AWG optional)
Dimensions (not including wires) 4” W x 5.4” H x 0.65” T
(102mm W x 138mm H x 16.5mm T)
4” W x 5.9” H x 0.7” T
(102mm W x 150.5mm H x 18mm T)
Weight 10 ounces
(290 grams)
12 ounces
(340 grams)