Battery: 6F22 9V 600mAh rechargeable li-ion batteries
Package: 4 pack rechargeable 9V battery and a 9V rechargeable battery charger
This charger can charge 1~2pcs 9V lithium,Ni-MH,Ni-Cd batteries
Recommended for smoke alarms, professional audio and medical devices
No memory effect,improved low self discharge makes it still maintain 75% of capacity after 3 year of non-use
Package: 4 pack rechargeable 9V battery and a 9V rechargeable battery charger
This charger can charge 1~2pcs 9V lithium,Ni-MH,Ni-Cd batteries
Recommended for smoke alarms, professional audio and medical devices
No memory effect,improved low self discharge makes it still maintain 75% of capacity after 3 year of non-use
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