AKTTKA Rechargeable AA 1.5V Lithium Batteries 8-Pack, 4070mWh High Capacity USB-C Charging Cable, LED Indicator, 6-Layer Protection, Long Lasting for High-Drain Devices, Quick 4 Hour

4070mWh High Capacity — Longer Runtime, Fewer Recharges: Each of the 8 AA rechargeable batteries delivers 4070mWh — high-capacity lithium batteries built for demanding devices. Enjoy up to 40% longer runtime than standard rechargeable batteries in Xbox controllers, smart door locks, and high-lumen flashlights. Spend less time replacing batteries and more time using your devices with dependable rechargeable power. USB-C Direct Charging — Charge 4 at Once: Skip the bulky charging base. The included 1-to-4 USB-C charging cable plugs straight into each lithium battery — charge 4 at once from USB-C adapter, power bank, or laptop. The built-in LED indicator shows green flashing while charging and solid green when fully charged, so you can monitor progress at a glance. Keep 4 batteries powered while using the other 4 — no downtime, no extra charger to buy. 1.5V Nominal Output — Fewer Low-Battery Warnings：Standard 1.2V NiMH rechargeable batteries may lead to dimming lights, laggy controllers, and sensor errors. AKTTKA 1.5V lithium batteries deliver a 1.5V nominal output — higher than 1.2V NiMH — so your devices run at the voltage class they're built for: bright flashlights, responsive gaming controllers, and reliable smart-home sensors. A Matched Set Of 8 — Charged Together, Used Together：8 cells in one box means one complete set for one device, all sharing the same capacity and the same charging history. When the set runs down, pull all four, put all four on the 1-to-4 cable, and they come back up together — no half-charged stragglers, no mixing fresh and tired cells inside the same gadget. Rotation stays simple, downtime stays short, and last-minute runs for disposable AA batteries stop happening. 500+ Recharges Per Cell — 4,000+ Across The 8-Pack：Each AA is built for 500+ charge cycles — more than 4,000 reuses from one 4-pack. Rotate them through smart locks, Xbox controllers, LED flashlights, electric toothbrushes, wireless mice and keyboards, doorbells, and Christmas lights, then charge and go again. Six built-in protections guard against overcharge, over-discharge, overcurrent, short circuit, overvoltage, and overheating. Less waste in the trash, lower cost every time you recharge.