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When caring for the longterm use of rechargeable cordless tool batteries, there are several important tips to keep in mind. Make sure you charge at 70% capacity. Never fully drain the battery, or it won’t last as long as it could. Always keep a spare battery. If a tool should drain one battery, you will have a backup. Never leave the charger plugged in after a full recharge. Keep using your tools. A disused tool will actually weaken the battery. You may consider a corded tool if you don’t plan on using it much. And of course, keep those batteries safe, cool and dry at all times.

Read more: Comment on How to Care for Rechargeable Cordless Tool Batteries – Today’s Homeowner by Jim Harden