What Causes A Battery To Not Hold A Charge. Considering this having a lower water content will provide. Therefore if the battery is not getting a voltage of 128 in the battery terminals then the voltage is too high or low or it means the battery is dead and needs replacement.
Thus even if you take the battery for a charge in an auto battery charging center because of the corroded battery posts the battery wont charge properly. Also it could be the charger input or the charger itself is damaged. AGM Batteries seem to have stopped holding charge.
Release the clamps and check the charge level on the battery using the battery tester.
This could be one of several things. In order to test all of them you need a small multimeter you can get on for ten bucks. If the alternator is not charging the battery while the engine operates the battery will not hold a charge. This video provides you with some important tech.
