9v batteries are commonly used in electronic products and installation equipment / voltage testers / cable testers etc. Batteries rated at 300 mAh to ensure enough power is provided for electronic devices. Batteries are rated to be charged ± 1000 times before replacements are needed.

All batteries must be charged before usage, please see recommended charging times below. Do not attempt to overcharge batteries since it will not improve it's lifetime and may damage the batteries.

Charger at 9v, AA or AAA battery charger with Pack of 4 AA batteries can accommodate charging of AAA, AA and 9v Nickel-metal hydride (NiMH) or Nickel-cadmium (Ni-Cd) rechargable batteries. Do not attempt to recharge ANY TYPE of Alkaline batteries with the charger.

Recommended Charging Times

AA Sizes

2800 mAh - 14 hours
2500 mAh - 12 hours
800 mAh - 8 hours

AAA Sizes

1000 mAh - 5 hours
400 mAh - 2 hours

9v Batteries

300 mAh - 11 hours
280 mAh - 10 hours
200 mAh - 7 hours