Features:
1. The external output port has a self-recovery fuse to prevent the for from being burnt due to an external short circuit.
2. When the total current of 2 USB output ports reaches 3A, the self-recovery fuse will be fusing. When the external port is no load, the 5V output will automatically restore.
3. PMU over-discharge : When the lithium battery voltage is lower than 2.8V, the PMU judges that the battery has been over-discharged and automatically cuts off the 5V output.
Specification:
Condition: brand new
Battery: 1 x 3.7V 4000mAh lithiium battery
Package Weight: Approx. 122g/4.3oz
Package list:
1 x Lithium Battery Expansion Board
1 x Lithium Battery
1 x Set of Installation Accessories