Storage Recommendations for OPTIMA® Batteries and Chargers
The most important consideration when storing any battery is to make sure the voltage never drops below 12.4 volts. We recommend using a type of battery maintainer – a device that will monitor your battery and keep it at full state of charge during storage.
There are two types of maintenance chargers:
- Preferred – Fully automatic multistage or multistep chargers, which monitor the battery and charge it as necessary. Multistage maintainers will charge at varying voltages and varying amperage (rarely exceeding two amps). Some of these multistep chargers are also capable of being regular battery chargers (seven amps or more).
- OK, but not preferred – Traditional float chargers provide constant voltage with tapering amperage to the battery even when it is fully charged. For float charging, we recommend one amp max, 13.2-13.8 volts.
If it is not possible to use a maintenance charger, disconnect the battery from the vehicle during storage to prevent small electrical drains from discharging the battery. Always provide a full charge with a battery charger prior to storage, and then check the battery voltage every three to six months. Charge the battery if it falls below 12.4 volts.
Store your OPTIMA Chargers Digital 400 or Digital 1200 12V Performance Battery Charger and Maintainer in a cool, dry, safe location, and inspect all cables before use. Should the AC power cord, plug or the DC cables be damaged in any way, do not attempt to service. Follow the return instructions in the customer service and warranty section of the manual.
How should I store my OPTIMA battery?
Discover the best ways to store your OPTIMA battery.