TTI has changed the game on the 40V batteries as you can no longer open them and jump the two pins GND and RST after you have performed your repairs. You can purchase a replacement Ryobi battery from your local supplier or head over to online retailers like Amazon.Not sure where to begin with this as I have already figured out what is bricking these batteries, but not as much as to unbrick them. If that battery works and yours doesn’t even after giving it a boost, then you will have to replace the battery. You can confirm that the battery is faulty by using another battery on your charger. Sometimes, getting a new battery is all you need to get to bring the tool back to life. If your battery is too old, unable to get out of sleep mode, this might be what you’re looking at. If not, then you can move to the final fix. If both options give you positive results, then you know that your charger is at fault and will have to be replaced. You might want to try some other battery with the charger or try another charger with your battery. In some cases, the charger could be the problem. You might want to be extra careful and patient when cleaning these terminals. Unfortunately, you could be dealing with recessed terminals as well as corrosion or dirt. Dirty terminals can be cleaned using a wire brush or an alcohol wipe. If the metal contacts on the battery or charger become corroded or dirty, the charger will be unable to detect that the battery needs charging.įor corroded battery terminals, you should use a bit of sandpaper and some elbow grease to get it off.

In some cases, the battery could be okay and the terminals could be the problem. Likely Cause 3: C orroded or Dirty Battery Terminals If it is too hot, then you might want to keep it in the fridge for a short while. If the battery is too cold, storing it at room battery should get it to charge again. You should also watch out for hot days or avoid using the tool for too long as it could make it quite hot. If you’re in the winter season, then you need to ensure your batteries are in someplace warm. So if you’re having problems with charging your Ryobi 40V battery, check if they’re too hot or too cold. Take note, the optimal charging range for a Lithium-ion battery is 32☏ to 113☏ (0☌ to 45☌). While Ryobi tools are known to be highly durable, exposing the battery to extreme temperatures for long periods of time could render it useless which could cause charging problems. Likely Cause 2: Battery Gets Too Hot or ColdĪnother big problem that mostly affects lithium-ion batteries is extreme temperatures. By doing this continuously, you might give the battery just enough charge to get out of sleep mode. The idea behind this fix is that plugging your charger into the battery will give it a bit of charge even though it might not be enough to boost the battery. This could take up to 30 minutes to work. Repeat the process until the green light remains steady instead of switching to the red/green flashing lights. Just before the charger can switch to the flashing red/green lights, remove the battery from the charger. Simply connect your charger to a power outlet and place the battery in the charger until the green indicator comes on. You should only try this method if you don’t have a spare battery or power supply as in the previous fixes.

With that in mind, you can try any of these fixes. However, If the battery has been in sleep mode for a week or long, you might want to reconsider boosting it as it could be dangerous. There are ways to boost the battery or bring it out of sleep mode. Unfortunately, you won’t find a boost mode on Ryobi 40V charger that could be helpful in waking the battery from sleep mode. Being that the battery has been discharged to such a low level, the charge will have trouble detecting if the battery is healthy and will be unable to charge it. This becomes a problem when trying to charge the battery. In other words, the battery has entered sleep mode. If you run down the battery, it will begin to show flashing red and green lights which means the battery has been over-discharged. One of the most common problems with Ryobi 40V battery is over-discharging. Likely Cause 1: Battery Entered Sleep Mode The Ryobi 40V Battery Not Charging problem is mostly the same for every power tool whether you own a weed trimmer, leaf blower, or motor, you will find one of the following fixes to work for you. Ryobi 40V Battery Not Charging: Causes & How to Fix Likely Cause 3: Corroded or Dirty Battery Terminals.Likely Cause 2: Battery Gets Too Hot or Cold.Likely Cause 1: Battery Entered Sleep Mode.

Ryobi 40V Battery Not Charging: Causes & How to Fix.

Ryobi 40v battery defective