Maintenance_DSC_1638_Emily-Fagan

battery-SeriesParallel
A regular part of wet-cell battery maintenance is cleaning away the corrosion with a solution made from one cup of baking soda per gallon of water. To clean the battery terminals, use a discarded toothbrush or wire-bristle brush with the baking-soda solution, then rinse well. A terminal-cleaning tool can also be used.
Electrolyte is drawn out of the cell of a wet-cell battery and into a hydrometer so the specific gravity and cell voltage can be measured. This battery is in the red zone, indicating that it needs to be charged.

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