HW 9V Batteries, Rechargeable Lithium 4 Pack, USB-C for Smoke Detectors 8-Pack
Size8-Pack
Special Features
- 4-PACK 9V RECHARGEABLE LITHIUM: For compatible smoke detectors, CO detectors and fire alarms, etc, with one 4-in-1 USB-C cable.
- LOW-BATTERY ALERT: Designed to trigger compatible devices' low-battery warning at about 10% remaining power before recharge.
- LOW-NOISE POWER: Designed to reduce buzzing and humming in compatible 9V devices for quieter everyday operation.
- 3-HOUR FAST CHARGE: About 3 hours to recharge; green LED blinks while charging, stays solid when full; 70%+ after 1000 cycles.
- 4-WAY PROTECTION: Built-in safeguards cover short circuit, overcharge, over-discharge and discharge overcurrent during use.
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