The ARB-L18-2600U battery can be charged by its own USB port and by the charger as well. A protective circuit is built into the anode and covered with a riveted steel hat. The battery is fully covered with the steel shell, thus the potential risk of short circuiting caused by collision or impact is hugely eliminated.
Micro-USB charging port
Protection circuit in the anode
Short circuit protection
Pressure reflief vent
500 charge cycles
Model Name: ARB-L18-2600U
Charging Current by Charger: 1A (Recommended), 2A (Maximum)
Warranty : 1 year warranty from the date of purchase. Overdischarging or battery leakage is not covered nor is fast draining of battery while using. Please keep the voltage of all Li-Ion batteries above 3.8V for healthy storage. Recharge as soon as possible when you have run them down. Storing a depleted ( less than 3.2V open voltage ) battery may damage/ shorten life/cycle permanently.