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    Rechargeable 9v Batteries USB 9 Volt Battery for Smoke Alarms 3700 mWh 9v Lithium Battery with 4-in-1 USB-C Charging Cable and LED Charge Indicator, 8-Pack(2)

    $11.99

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    Product details

  • Number of Batteries: 2 AA batteries required. (included)
  • Brand: CARDIENS
  • Battery Cell Composition: Lithium Ion
  • Battery Capacity: 3700 Milliamp Hours
  • Recommended Uses For Product: Gaming Controller
  • About this item

  • 【USB-C charging cable enables easy charging】 You can charge 4 batteries simultaneously or individually, just plug it into a laptop, power bank, wall charger or car charger. Fast charging time is 1.5 hours, and the 9v rechargeable batteries have indicator lights that blink when charging and go solid when done
  • 【3700 mWh provides longer battery life】 It lasts 3X longer than other 9v battery for smoke detector, and don't worry about running out of power while it working
  • 【Recharged at least 1200+ times】 Multiple charges barely lose capacity, in the long run they will save you money on battery purchases and also reduce your environmental impact throwing away disposables, comes with a small carrying case too
  • 【Advanced explosion-proof & leak-proof technology】 After a number of safety tests, the smoke detector battery is as safe as the built-in charger for cell phones and computers, and you don't have to worry about harming your expensive electronic devices
  • 【Versatile rechargeable 9v batteries】 They holds a steady 9 volt, works for smoke detectors/fire alarms, guitars, wireless microphones, metal detectors, toy cars, thermometers, garage door openers, medical devices, etc. PS:The battery is not fully charged when it leaves the factory. Please fully charge it before use.