What maintenance is required for the EverStart Maxx 1200A?
The battery is sealed and maintenance-free. When the unit is not in use, charge it at least every 30 days to maintain optimal performance. Periodically wipe the outside with a soft cloth, but do not immerse in water. Inspect adapters, connectors, and wires for wear or damage and contact the manufacturer to replace any worn components. (Page 11)
From the official Everstart Maxx 1200A Jump Starter manual, page 11
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