battery tester

223

03:23:06

Battery tester..

imagine that the DC source in the right side is your battery..

connect the positive side of 1.5V battery in the  base of transistor at the right side then connect the negative to the ground...

when the voltage of battery is lower than 1.4V then the red LED will on and the green if the voltage is higher than 1.4V.

try to adjust the battery and see what happen :)

published 10 years ago

WTFCircuit

10 years ago

Nice

hurz

10 years ago

Voltage is not the best indicator how healthy a battery is. More important is the internal resistance. But this can only be measured under load.

momo3

10 years ago

oww how can i improve this help me

hurz

10 years ago

Here an example of a passive battery tester i have made http://everycircuit.com/circuit/6727760940630016

momo3

10 years ago

thanks :3

hurz

10 years ago

You are welcome!

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