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Simple Trick to Get Your Battery Back to Life Again - Battery Restoration
USB rechargable LED Flashlight (also charges your phone)
Displaying Battery Life on a Liquid Crystal Display (LCD)
5 Best Battery Life Hacks
Make a tiny long-lasting LED torch
Increase battery life for electronics
Low power LED lantern mod
Lithium Iron Phosphate (LifePO4) solar storage battery bank
Posted:Apr 1, 2009
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