Key Specifications Brand / Model: Maxuss 300 9V Rechargeable Battery Battery Type: Lithium-ion (Rechargeable) Voltage: 9 V Capacity: 300 mAh Cycle Life: Up to 500 recharges Charging Time: โ 2 hours (depending on charger) Compatibility: All devices using standard 9V batteries (smoke alarms, multimeters, toys, microphones, instruments, etc.) Features: Fast charging & long runtime Stable voltage output Low self-discharge rate Built-in overcharge & short-circuit protection Color: Black / Blue (depends on batch)