An AGM battery that will not charge may have a battery, charger, connection or vehicle-system problem. Use a charger rated for the battery and follow the maker’s instructions.
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Confirm charger compatibility
Check the charger’s AGM mode, voltage and safety directions. Do not force charge a swollen, hot, leaking or visibly damaged battery.
Test the system
A qualified battery and charging-system test can distinguish a bad battery from a faulty alternator, DC/DC converter or parasitic draw.
Put the answer to work
Start with the actual vehicle label or installed component. Then use our vehicle directory and comparison tools to narrow the research. Any missing condition should be checked with the manufacturer or a qualified installer.
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Confirm charger voltage, AGM mode and the battery maker’s safe charging instructions before connecting it.
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