SWITCH TO RECHARGEABLE : Stop wasting money on standard alkaline AA batteries! Switch to our rechargeable lithium batteries for the same great performance. Reuse the batteries repeatedly. Be eco-friendlier and more cost-effective Type C USB CHARGING : Directly plug a Type C USB into the input for quick and easy charging. Use the included cable to connect simultaneously connect 2 batteries to any USB power supply. Connect to an AC adapter, power bank or computer, and fully charge in around 1.5 hours. Long lifecycle will allow over a 1200 uses LED INDICATORS : When charging, the red LED will blinks and will then LED remains on once it is fully charged. Conveniently see the charging status of each battery LARGE CAPACITY : 2600mWh capacity provides sufficient power for a wide range of products. Perfect for controller, keyboard, mouse, toys, calculator, toothbrush and much more CETIFIED SAFETY : Compliant with North American safety standards. CE, FCC and RoHs recognized safety for guarantee user and device safety Features: /b br 1. Great performance,a good replace to alkaline AA batteries,1.5V constant output,the same usage time as alkaline AA batteries. br 2. Fast charging ,Type C USB charging fast fully charge in around 1.5 hours. br 3. Easy charging,connect type C cable to the batteries and suitable USB power source(such as mobile phone adapter,laptop,power bank or car charger).