Ryobi Drills - Page 6 - Recent Questions, Troubleshooting & Support

Ryobi P115 is an 18V battery charger. However, Ryobi Manual did not mention the current rating of P115. if the current rating of Ryobi P115 is 50% higher than your 18V Lithium Battery it will charge. but if it's less than or equal, it will not.

Check the battery with your multimeter. If it reads below 36 volts (or whatever the cutoff point is) it may be damaged. But before you run off and buy a new one, use the multimeter to check the voltage from the charger. Or borrow a good battery and see how your charger behaves. that way, you can identify the cause of the problem

test the battery with DMM-Digital Multi-Tester. when full charge a 36V battery measures 37-38 Volts. if battery is full charge the problem is your electric drill bring it to service center maybe need to replace carbon brush or the motor.

try another battery in the charger

Not likely.

I believe it is a P105 18V lithium battery.

the pin that shift from one setting to an other is jammed between

You have a weak cell in the battery therefore it isn't producing enough amps. Needs to be replaced.

The battery has failed. Whether the battery can be reconditioned is not the question. The battery charger is condemning the battery when it does this. There are some battery fixes on you tube where a second battery can be used to get the dead battery off the zero voltage or low voltage limit that the charger is seeing. My response that the battery has failed is based on the charger symptoms and not on whether the battery can be reconditioned.

I suspect the little ball bearings are out, possibly fell through the holes. Age and use and abrasive dust will cause this. You will need parts to replace the bit holder completely.

in the hand book it states that the charging period for new batteries can be up to 6 hours

This behavior is typical of trying to charge a battery that is wither too hot (let it rest for a hour) or one that has done its job and is ready for the battery retirement home. Replace your battery for best results with your Ryobi battery powered tool.

all batteries wear out only need to change out battery unless charger is malfunctioning

(+) (T2) (T1) (-)

Ryobi Recalls and Recall Information

Lithium-Ion batteries require careful charging and temperature monitoring while in the charger. Ryobi's Charging station monitors many functions and shuts off when the battery has gone through a complete charge. This is indicated by a steady Green light. Once the Charge indicator is a steady green the charger stops charging. With any battery It will slowly discharge and I don’t think the Ryobi will maintain a battery that is never removed. For example, if after a complete charge cycle if the battery was left there for 2 years and then you went to use it, it would likely be completely discharged. However if the battery charger is unplugged then plugged back in a new charge sequence would start. I lose power at my house about every 6 months or so. Once power is restored a new cycle would start and the charging cycle begins again.
Hope this helps and have a great day.

check that you are using the correct line in the head if it is too thick , the load will be causing the thermo switch for the motor to stop operation until it cools down

The wires on the brushes sometimes shake loose , tool repair shop ,, or try it yourself ,, remember. Small parts ,, take pictures , tiny wires , may need to be soldered back in place ...