Pack of 4 600mAh Li-ion 9V rechargeable batteries.
No memory effect & Low-self discharge,holding capacity effectively,not have to change every day.
Bonai 9 volt Batteries with great quality,high cycle count,Even if it is charged every day,it can be used for more than 3 years.
Bonai 9V batteries rechargeable are perfect for smoke alarms, metal detector, professional audio, toys, guitar, medical devices and more.
BONAI - We are a professional battery manufacturer with 10 years of experience and we have been doing our best to meet customer needs. --【Support After Sales】1 year warranty, If you have any questions,submit a claim via email,we will reply you within 24 hours.