How Long Can a New Unopened Battery Be Stored?
2 Answers
New unopened batteries can generally be stored for one or two years. Here are the details: 1. New Battery Maintenance: New unopened batteries can typically be stored for one or two years, but they need to be charged every 3 months or half a year, as the battery will naturally discharge even when not in use. 2. Battery Storage: Batteries should be stored in a well-ventilated and dry place. They are sensitive to cold and should be kept in a warm environment with temperatures between 5-40 degrees Celsius. Avoid storing them near damp or heat-generating equipment. Additional Information on Battery Storage: 1. Avoid Storing with Electrolyte: When storing, try to avoid keeping the battery with electrolyte. If stored with electrolyte, it needs to be charged periodically, and the liquid level and density should be adjusted. Ensure the battery is fully charged before storage. 2. Battery Charging Time: Battery charging times are generally long, averaging around 8 hours. It's important to monitor the charging time carefully. If the charging current is high, the battery may charge quickly, but continuing to charge can lead to overcharging, causing water loss and overheating, which reduces the battery's lifespan.
When I first bought my car, I also stocked up on a new battery as a spare. If unopened, this thing can last 6 to 12 months, but it depends on the storage environment. My garage gets as hot as a steamer in summer, and high temperatures can cause the battery to self-discharge faster, so I always store it in the cool basement. For regular lead-acid batteries, it's best not to exceed one year, while AGM start-stop batteries might last a bit longer. Long storage can lead to sulfation, and once the charge is completely drained, the battery is ruined. I recommend topping it up with a charger every quarter or using it within 12 months of purchase. Otherwise, if it discharges too much, you'll need to take it to a professional shop for recovery. When storing, avoid stacking heavy items on top to prevent deformation, and keep it in a dry, well-ventilated place.
