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Charging canon NB-4L battery over USB.

So im on vacation with my camera, but i forgot my charger. The battery is rated at 3.7 volts and 760 mAh. My charger outputs 4.2 volts. My question is, would 5 volts from a USB port be too much for a makeshift charger?

2 comments
16
Mar 3, 2012. 6:32 AMmpilchfamily says:
Yes. 5V could burn out the charge circuit or overload the battery.
Mar 3, 2012. 12:34 AMAncient1 says:
KABOOM
'nuff said

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