This Battery Management board can handle up to 20A( We recommended 10A only) with 12.6V. you can build you mini 12V battery pack with this module. its simple and tiny.
Specifications
Current
20A ( We recommended 10A)
Features
Battery Balance Charging
Short Circuit Protection
Battery Cut-off
Input Voltage
12.6V ~ 14V
Output Voltage
10V ~ 12.6V