5 Best Battery Filler Bottles with Automatic Shutoff

If you want to add water to lead-acid batteries without worrying about overfilling or spilling the fluid, use one of these battery water fillers with automatic shutoff.
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Although a voltmeter is good for measuring the state of charge of a lead acid battery, it is not the best tool for the job. The most accurate way to determine the state of charge of a lead-acid battery is…