• Battery Type: 9V 600mAh rechargeable li-ion battery with 4 pack, perfect for smoke alarms, electric guitar, metal detector, professional audio and more
  • Battery Charger: Can charge up to 4pcs 9V Rechargeable lithium-ion batteries at the same time or one by one separately
  • Note: All 9v li-ion batteries' full voltage is 8.4V and the battery charger only charging for one or more 9v Lithium battery, do not charging for other type of batteries
  • Package Included: 4 bay 9V li-ion battery charger (USB Input) and 4 pack rechargeable 9V li-ion battery
  • Adopts MCU control technology, can provide constant current and voltage.
  • Battery Type: 9V 600mAh rechargeable li-ion battery with 4 pack, perfect for smoke alarms, electric guitar, metal detector, professional audio and more
  • Battery Charger: Can charge up to 4pcs 9V Rechargeable lithium-ion batteries at the same time or one by one separately
  • Note: All 9v li-ion batteries' full voltage is 8.4V and the battery charger only charging for one or more 9v Lithium battery, do not charging for other type of batteries
  • Package Included: 4 bay 9V li-ion battery charger (USB Input) and 4 pack rechargeable 9V li-ion battery
  • Adopts MCU control technology, can provide constant current and voltage.