Keep peace of mind when using your motorized and recreational vehicles equipped with lead-acid batteries.

First, select properties that apply to your battery or set of batteries from different types and uses.

Using a voltmeter, measure the voltage and enter it. This displays back the level of charge in percentage.

Cases requiring the use of a hydrometer are also supported.

Please note that the use of this app requires a voltmeter and or hydrometer.

Version 1.1

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