21700 vs 18650 Battery – What’s the Same, What’s Different
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21700 vs 18650 Battery – What’s the Same, What’s Different

What is the difference between a 21700 vs 18650 Battery? Short Answer: A “standard” 21700 is big, 47% bigger by volume than an 18650. It is about 50% heavier than a “standard” 18650. Because it is bigger it can store roughly 30% to 50% more power measured in mAh or amp hours. Both are rechargeable…

Kaito KA500 Emergency Radio Review
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Kaito KA500 Emergency Radio Review

This small versatile radio lets you listen to AM, FM, NOAA Emergency and Shortwave (HAM).  It does not broadcast.  The Kaito KA500L can be charged using solar, crank, or USB.  The radio can also charge a cellphone or other USB device.  It includes two small lights and a flashing red light. The radio comes in Red, Black or Yellow. We recommend the KA500L over the KA500 or KA500IP.