Voltage matching table
A 42V charger is typically used with 36V nominal lithium batteries, 54.6V with 48V nominal lithium batteries, and 67.2V with 60V nominal lithium batteries. The actual requirement depends on cell count and chemistry.
- 36V nominal lithium battery → commonly 42V charger
- 48V nominal lithium battery → commonly 54.6V charger
- 60V nominal lithium battery → commonly 67.2V charger
Current is not the only speed factor
A higher current charger can shorten charging time only if the battery and BMS support that current. Always verify the maximum charge current before increasing from 2A to 4A.
Connector and polarity are separate decisions
Two chargers with the same output voltage can have different connectors and different polarity. Voltage matching does not replace physical and electrical compatibility checks.