3. Maintenance-Free Battery: CHECK BATTERY VOLTAGE
(a) After having driven the vehicle and in the case that 20 minutes have not passed after having stopped the engine, turn the ignition switch ON and turn on the electrical system (headlight, blower motor, rear defogger etc.) for 60 seconds to remove the surface charge.
(b) Turn the ignition switch OFF and turn off the electrical systems.
(c) Measure the battery voltage between the negative (-) and positive (+) terminals of the battery.
If the voltage is less than specification, charge the battery.
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You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.