Storing your batteries the right way can make a big difference in how long they last. If you’ve ever reached for your drill and found a dead battery, you’re not alone. Knowing how to store power tool batteries helps avoid that frustration and keeps your equipment ready for work. A few simple habits can protect your investment and save you money over time.
Pick a Dry, Cool Storage Spot
Heat and moisture are the worst enemies of battery life. Batteries should always be kept in a place that’s dry and has stable temperatures. Extreme heat causes the battery cells to break down. Cold temperatures can drain the charge faster and cause condensation when brought back to a warm room. A closet, cabinet, or workshop shelf works well if the environment stays between 50–75°F. Never leave batteries in a car, shed, or garage during extreme weather.
Store Them with a Partial Charge
It’s better to store lithium-ion batteries with a partial charge, usually around 40% to 60%. This helps keep the cells healthy. Fully drained batteries can drop below the recovery voltage and stop working. Fully charged ones may overheat or lose capacity faster during storage. If your tools won’t be used for more than a month, it’s worth checking the charge once in a while.
Avoid Metal and Moisture Exposure
Keep your batteries away from metal tools, loose screws, and other items that could cause a short. Use the original battery case if you still have it. If not, a plastic container works well. Never store them near liquids, cleaning supplies, or in humid conditions. If moisture builds up, corrosion can form on the terminals and shorten the battery's lifespan.
Disconnect from the Tool or Charger
Leaving a battery connected to your tool or charger can slowly drain power. It may also reduce its lifespan. Always remove the battery before storage. If you're charging before storing, unplug it right after the charge completes. Most modern chargers stop charging automatically, but it’s still good practice to unplug when finished.
Use the Right Storage Rack or Container
Battery storage racks help keep things organized. Some even have wall-mount options to save bench space. If you're storing multiple battery types like DeWALT, Makita, or Milwaukee, it’s best to separate them by brand. Label each container or shelf to avoid mix-ups. You can find storage systems that hold batteries, chargers, and tools in one spot.
Rotate Batteries Regularly
If you have more than one battery for your power tools, try to rotate their use. Don’t let one battery sit unused for too long. Even if it’s charged, inactivity can lead to performance loss. By cycling through your batteries, you keep them all in better shape. Check stored batteries every 1–2 months and recharge if the power drops below 30%.
How We Make It Easy
At Factory Direct Supply, we carry power tool brands and accessories that stand up to daily use. Our selection includes batteries, chargers, and tool organizers that help you work smarter. If you need storage ideas or replacements, we’re here to help you find what fits your setup best.
Need better gear for your workshop? Request a quote and order your next power tool battery setup from us today.