High Power Electronics Partner - Currently the highest capacity 1.5V AA rechargeable battery on the market is 3600mWh, SINCEHOY batteries are made for high power consumption devices, ideal for Gamepad, VR Grip, Doorbell, Camera, Flash, Door Lock, Microphone, Radio, Children's Toys, Alarm Clock, Scale, Blood Pressure Monitor and so on.(Also Suitable for blink camera Cost-Effective - Price of 1.2V rechargeable NiMH batteries, but with the performance of 1.5V rechargeable Li-ion battery, because we have a technological breakthrough. Using more stable materials, the battery can be recharged more than 2000 times, which can save you a lot of money Multi-Functional Charger - Not only can it quickly charge any combination of AA lithium-ion batteries without the need to charge them in pairs, but it can also be used as a battery organizer, making it super easy to carry. (Cannot charge 1.2V batteries) 2.5H Fast Charging Technology- 2.5 hours fast charging, can charge 1-4AA lithium batteries, reduce your waiting time.Type-C charging port is suitable for a variety of interface input, you can use laptop, car charger, mobile power, adapter, etc. to charge the battery, make charging more flexible. (Note: Preferably with a 5V 2A adapter, do not use 1.0A adapter.) 0V Protection - Some brands of batteries after 0V will not be able to use, our batteries have 0V protection, can be activated after charging, does not affect the use of Smart LED Display-The LED light displays charging status. Flashing Green indicates charging, Static Green indicated fully charged, Red indicates error battery or temperature state. REAL BARGAIN - Has the performance of a 1.5V rechargeable lithium battery, but sold at the price of NiMH rechargeable batteries. A new technological breakthroughs that enable customers to purchase more cost-effective products.