4x EBL USB Rechargeable 9V Volt Lithium Batteries 5400mWh + Micro Charging Cable

USB Charging Design - Unique design with a micro-USB port in the side of the battery, it can be directly recharged by plug in a USB port like laptops, power bank, wall adapter, etc. Easy and convenient to charge anywhere and anytime.
Steady Voltage - Keep steady 9v voltage until the whole cell is depleted, makes the devices work more stable. The advantage of lithium battery is no memory effects, you can charge the battery anytime whatever fully or partially drained.
Widely Used 9V Battery - Standard 9V rechargeable battery, can work perfectly with smoke detector, flashlights, portable radios, walkie-talkie, alarms clocks, microphone, cameras, toy remotes, etc.
Multiple Safe Protection - Supports over-charged, over-discharged, over-voltage, over-current and short circuit protection, ensures complete safety for you and your devices.
1200 Cycles Time - Recharge up to 1200 cycles, the lithium batteries not contain Hg / Cd / Pb harmful metal substances. Perfectly replace of dry battery and ordinary rechargeable battery.
High Capacity & Long Lasting - The Lithium batteries is lighter but have a larger capacity than Ni-MH rechargeable batteries, 5400mWh high capacity could support longer working time for your devices.