Quick Answer
It's generally recommended to remove the battery from your generator for long-term storage to prevent battery drain and sulfation, but the decision ultimately depends on the type of generator and battery.
Storage Considerations
When storing a generator for an extended period, it’s essential to consider the type of battery and the generator itself. If your generator has a deep cycle battery, it’s recommended to remove the battery to prevent drain and sulfation. However, if your generator has an alkaline or maintenance-free battery, it’s generally safe to leave it connected.
Discharging and Sulfation
Leaving a battery connected to a generator during storage can cause it to discharge over time, leading to sulfation. Sulfation occurs when the battery is partially charged and the sulfur in the battery plate reacts with the water, forming a hard, insulating layer that reduces battery performance. This can happen even if the generator is not in use. A fully charged battery will generally last for 3-6 months before needing maintenance, but a partially charged battery can sulfate in as little as 30 days.
Maintenance and Charging
If you choose to remove the battery from your generator, make sure to follow the manufacturer’s instructions for charging and maintenance. Typically, a deep cycle battery should be charged to the manufacturer’s recommended voltage and maintained at a 50% state of charge. It’s also essential to check the battery terminals for corrosion and clean them before reconnection. If you’re unsure about the type of battery or generator you have, consult the manufacturer’s documentation or contact a professional for guidance.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.