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crwdns2933797:0Andrew Bookholtcrwdnd2933797:0crwdne2933797:0
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| - | [* black] This small 3.7V lithium-ion battery pumps out 15 hours of audio playback. |
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| + | [* black] With a listed capacity of .19 Whr, this small 3.7V lithium-ion battery pumps out 15 hours of audio playback. |
| + | [* black] To calculate the capacity in amp-hours, we know P(power) = I(amps)*V(volts), so I = P/V. That yields a capacity of about .051 amp-hours, or 51 mAh. To say the least, that's diminutive in the world of batteries. |
| [* black] It's remarkable how long a battery lasts when it doesn't have to power a backlight. |