How To Tell If Deep Cycle Battery Is Bad

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How To Tell If Deep Cycle Battery Is Bad. Using a cranking battery in place of a deep cycle version causes the plates to buckle and the unit to fail. To verify you can perform load testing on a fully charged battery.

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Performing A Basic Deep Cycle Battery Inspection. A deep cycle battery is a lead-acid battery that is used to provide power for different applications such as boats solar energy and RVs to name a few. If the test voltage is below the minimum replace the battery.

If you leave a load on the symptoms will show up in the battery.

In hot climates additional causes of failure are positive grid growth positive grid metal corroding in the electrolyte negative grid shrinks plates buckling and loss of water. If you take a reading and find the voltage to be less than 11V chances are your battery is in very bad state and can hardly retain any charge at all. Inspecting your deep cycle battery. How to Know If a Deep Cycle Battery Is Bad Step 1.