Battery level indicator

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03:46:27

Purple led shows battery high level indication
Green led shows battery medium level indication
Red led shows battery low  level indication
If 1,2,3 led glows at a time then baterry is fully charged 
If led 2 and 3 glows means 60% charge left
If only led 3 glows means battery is 20% left
This level indicator is used for 12 volt battery only .
By varying left side power supply you can see working vary it from 11v - 13 volt

published 9 years ago

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