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Car Battery Won't Hold a Charge

A battery that will not stay charged may be degraded, but the vehicle or charging system can also be responsible.

Editorial guide · Updated September 2026

Possible causes

Battery deterioration, parasitic electrical draw, poor connections and charging-system faults can all contribute.

Avoid treating the symptom only

Repeatedly charging or attempting to recondition a battery will not correct an external electrical fault.

Want the structured course?

EZ Battery Reconditioning is sold as a downloadable, step-by-step program. Check the merchant page for the current offer and terms.

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