Physics, asked by roysamir929, 1 year ago

how can i charge a 4v lead acid battery with usb cable???+~- or+~+

Answers

Answered by jagarlamudi200pamp92

simply u need to use a resistor as per current given to reduce voltage to 4v.ucb has 2 end points as +&-.just connect it to battery points .
charge for 2 mins. as current given is high it will be charged fast.

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