Easy to use Plastic Battery Hydrometer
One of the best and easiest ways to test and check your wet lead acid batteries.
A hydrometer shows the true state of charge of a battery and can help you accurately diagnose internal shorts or bad cells.
With a simple squeeze of the bulb the hydrometer will give you a specific gravity reading of the acid in the cell and tell you if it requires charging.
Using a hydrometer means that you do not get inaccurate readings due to surface charge.
This is an extremely useful item for maintenance and testing of wet lead acid batteries.
An essential part of a battery maintenance kit for anyone with accessible wet lead acid batteries.
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