About this item

• Battery: Rechargeable 9V li-ion batteries (6F22) with a capacity of 600mAh. Please be aware that the maximum voltage for all 9V li-ion batteries is 8.4V.
• Only charging for one or more 9v Lithium battery,do not charging for other type of batteries
• Recommended for smoke alarms, professional audio and medical devices
• Package: 4 pack rechargeable 9V battery and a 9V li-ion battery charger (USB Input)