... your BP-315 batteries in a cool, dry place. The refrigerator is cool, but not dry. You could store your BP-315 ... to keep the batteries dry. This however, is an expensive and inconvenient option. Many BP-315 Batteries battery packs are made up ... the life of lithium BP-315 Battery replacement , such as the rechargeable lithium battery can only be charged for 500 ~ 600 times, after that ...