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how to recharge my led flash light using 3 AAA battery from a usb laptop?

i have a led flashlight using 3 AAA rechargeable batteries. i want to make it to be able to plug in to my laptop's USB so that i can charge with my laptop.

Re-design7 years ago
The outside pins are +5 and ground.  Use a meter to determine which is which if you need polarity.  Or look at this pinout if you want to know them all.

The usb port is only good for about half an amp or less so don't use too much or you'll run the risk of loosing your usb port and maybe your motherboard.
iamsinned06 (author)  Re-design7 years ago
ok. ill not to. id just bough a charger. thanks for the advice.