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- About this item.
- HIGH CAPACITY & LOW SELF-DISCHARGE: Keenstone 9v Li-ion Battery contains 2 high energy density Li-ion battery cells, thus having a high capcity of 650mAh, can last longer after each full charge. Low self-discharge technology make batteries hold 80% power after 3 years of non-use. No memory effect, can be charged anytime whenever needed.
- SAFE & FAST CHARGING CONVINIENTLY: Keenstone USB Rechargeable 9v Batteries come with 2 usb cables, freely charged by adapter, power bank, car charger ect. Built-in Protection of over-charge, over-discharge, short-circuit and reverse polarity let you charge these 9v batteries with ease. It only takes 2.5 hours to be fully charged - The led indicator shows red when charging, blue when fully charged.
- WIDELY & DURABLE: Recommended for most smoke detector, multimeter, alarm system, camera, portable radio, walkie-talkie, microphone, toy remote, TENS Unit and other 9V battery powered professional audio and medical devices. Come with 1 4-compartment battery storage cases to help hold the batteries better stored if no hurry use.
- ECONOMIC & ECO FRIENDLY: Keenstone Rechargeable 9V Li-ion Batteries are lithium polymer batteries, which relatively improves the problem of battery leakage. They are mercury cadmium and lead free, safe for home and better for environment. Batteries can be recharged up to 500 times at minimal power loss, saving you from the constant need to buy single-use alkaline batteries.
- WARMING TIPS & AFTERSALE SERVICE: The Battery Output Voltage is 8.4V, higher than ordinary rechargeable 9V batteries, it is workable for most devices which working range are 6-9V, if your device needs battery voltage more than 8.4V, we suggest you Alkaline 9V battery. We provide 30 days money back and 12 months warranty, professional technical support, efficient and always satisfied customer service 24 x 7 email support, if you have any question, please feel free to contact us.
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Keenstone 2Pack 3.7V USB Battery 3200 mAh Battery
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Frequently Asked Questions About Keenstone 2Pack 3.7V USB Battery 3200 mAh Battery in Mali
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