How to Fix A Ryobi Battery In Sleep Mode: Charger Method This is one of the most common causes of so-called ‘defective’ Ryobi battery cases. So to prevent damage or abuse, it enters ‘Sleep Mode’ and can’t be charged. Then it’s left on a shelf for a long time, where it slowly loses even more power.Īt this point, the battery can’t tell if it’s healthy or not. Typically this happens when a battery is used up until it’s normally dead. This happens when too much juice has been used up in the battery, and the power level is almost completely emptied. It’s because of a thing called ‘Sleep Mode’. If we’re not careful, lithium-ion batteries can fall into hibernation. Remember to check this for both the battery and the charger. You shouldn’t need to do this too hard – just until you’re working with clear contacts again. Rusted contacts? Grab some old sandpaper and give it a good scrubbing. If it’s covered in gunk or rusted, you’re not going to be passing any charge through it!ĭirty contacts? Give them a good wipe down with a wire brush or an alcohol-soaked wipe. How clean are the contacts on both the battery and the charger? If it’s been exposed to extreme temperatures for a long time it may have suffered permanent damage. If the battery has been stored in a cooler or hotter place than that, get it back to room temperature before trying again. Lithium-ion batteries are made to be charged between 41 oF and 113 oF (5 oC and 45 oC). We take batteries for granted, but they’re not invincible. The easiest thing to check is your charging temperature.
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