【LED INDICATORS MANAGEMENT】When charging, the green LED will blinks and will then LED remains on once it is fully charged
【USB CHARGE DESIGN】No need charger and adapter,fast full charge in about 2 hours,easy to charge with usb cable, just simply plug into USB ports
【REDUCTION IN TOXIC MATERIALS】Mercury, cadmium, and lead are absent in these AA lithium small batteries. This helps eliminate the need for thousands of alkaline batteries and reduces a considerable amount of waste in landfills.
【MULTIPLE SAFE PROTECTION】Built-in Integrated safety circuit protects Battery from over discharge/overcharge,when the battery is fully charged, it will automatically stop charging,passed the test of CE, ROSH, 2006/66/EC
【DITCH DISPOSABLE BATTERY】Rechargeable usb D battery with 1000+ cycles , save your big money comparing with the single use batteries