The One Year Smartphone Backup Battery (8400 mAh)
4.9 (11 Reviews) ItemOur items are guaranteed for their normal life under standard, non-commercial use.
Product Story
This is the smartphone battery that holds its charge for a full year, ensuring you always have backup power during an emergency. While power seeps out of most rechargeable batteries after only three months of inactivity, this 8400 mAh lithium-ion battery has a unique covered jack that seals in power, so even after a year on the shelf it remains 97% charged. It fully charges an iPad Mini, iPhone, or Android in under three hours and can charge an iPhone 5 1/4X before requiring a recharge itself. Includes microSD cable for USB 2.0 (Apple Lightning cable not included). The device also incorporates an LED flashlight and emergency beacon. Recharges via your device’s USB/AC adapter in six hours. 4" L x 2" W x 1" D. (7 oz.)
Customer Reviews
4.9 (11 Reviews) (11)- All iPhone models
- All iPad models
- All iPod models
- All Android devices
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Lifetime Guarantee
Our merchandise is guaranteed for life.
Items that we sell are guaranteed for their normal life under standard non-commercial use. Should any product fail to meet your expectations, we will replace it or refund the cost of the item less shipping and service fees. Returns older than one year will be credited in the form of a gift certificate.
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Learn MoreThe Story Behind a Retail Legend
In the beginning there was hardware. Over the decades much has changed at Hammacher Schlemmer. But our original philosophy has remained constant...and still guides us more than 175 years later.
Read Our StoryThe affiliated, independent Hammacher Schlemmer Institute was created in 1983 to rigorously research, test and rate products to make the Best products available to our customers.
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