Artman Rechargeable 9V Lithium Batteries 4-Pack, 9900mWh 9 Volt Battery for Smoke Alarms, Nine Volt Batteries USB-C Recharge with 2 in 1 Charging Cable for Microphones, Multimeters, Electronic Toys

Versatile 9V Batteries: The Artman 9 volt li-ion batteries support stable power and longer working time for high frequently used devices, such as smoke/fire alarms, wireless microphone, walkie-talkies, toys, GPS, home security devices, medical devices etc
Rechargeable 9 Volt Batteries: Rechargeable 9v lithium-ion batteries with up to 9900mWh capacity last 3-5 times longer than regular alkaline batteries and have no memory effect, recharge up to 1200+ times when fully or partially depleted, saving you money
2.0H Fast Charger: No charger or adapter required, fast full charge in 2 hours with 2-in-1 USB-C cable. The 9 volt Li-ion battery built-in over-charge, over-current, over-voltage and short-circuit protection, no need to worry about security
LED Charging Indicator: Easily monitor the lithium 9v battery charging status with the LED indicator. It will flash blue when charging and turn into a solid blue light when fully charged, ensuring you always know the status of your rechargeable d battery
Durable and Reliable 9V Batteries: nine volt batteries work well in temperatures ranging from -68°F to 140°F. Caring for the environment starts with rechargeable 9 volt batteries, which can save thousands of alkaline batteries and reduce landfill waste.

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