Generally speaking, sleep mode happens when the battery gets used up but isn’t dead. Sleep mode happens when the battery reaches critical levels. Yes, batteries do have “sleep mode” on them. The garage may seem like a great place to store your tools, but batteries may not fare so well.īelieve it or not, it could just be a simple matter of your lithium-ion Ryobi battery falling into a slumber. But if you keep it in extreme temperatures for too long, it can suffer permanent damage and will need to be replaced.Īlways store electronics and batteries in temperature-controlled areas to prevent damage. In most cases, that should be enough to get it working again. One of the best ways to get your Ryobi battery working again is to bring it back to room temperature. If a battery gets stored in a place that is either cooler or hotter than that – particularly when temperatures hit extremes in the winter or summer – it may not work.Ĭhange the room temperature. That range for lithium-ion batteries is between 41 degrees and 113 degrees Fahrenheit. Lithium-ion batteries in particular need to be in a certain temperature range to charge effectively. We tend to think of batteries as these invincible little energy machines that bring our favorite tools and equipment to life, making projects far easier than ever before.īattery charging temperature range. One of the most common issues with batteries of any kind is extreme temperature change.

Ryobi 40v lithium battery