Safe & Reliable: The Rechargeable AAA Batteries, with intelligent circuit controller, can not only keep the overcurrent, overheating, over-voltage, over-discharge and short-circuiting, but also keep the low temperature during the charging process for extending the service life of batteries. Money & Pro-environment: 1*rechargeable AAA battery â 1800+ *alkaline AAA batteries, saving your money for buying 1000+ alkaline batteries arm and pollution of disused batteries to the global village. Constant 1.5V Output & No Memory Effect: rechargeable batteries, adopting new technology and new process, caner constant output at 1.5V (1.5A Output MAX) form 100% to 0% electricity capacity which is far superior to 1.2V output Ni-MH & Ni-CD batteries 1800mWh High Capacity & Easy To Use: AAA 1800mWh rechargeable batteries, supporting for most 1.5V/1.2V AAA electronic devices on the market, come with 4-in-1 USB-Micro charging cable which can replace for the traditonal battery charger. It is handy for taking them everywhere, and easy to charge batteries with laptop, power bank, or power adapter at anytime.(RED = still charging, BLUE = finished charging.) Charging Time of AAA Batteries: The batteris were fully charged form 0% to 100% within 2-3 hous. Please unplug the Micro-USB cable as the batteries are fully charged in time for preventing form overcharge or charging batteries for long time in order to reduce batteries wear extend the service life of batteries.