20 Most Recent Ryobi Multi-Volt Battery Charger - Page 5 Questions & Answers

After 8 years its possible you have some corrosion or bad contact on drill, takeing it apart an checking inside may be to much for you,but make sure all contact are clean on outside.

I'm afraid not. It will damage the battery if you try. You'll need to get the correct charger.

No, the green light should stay on, solid, not flashing once the charge is complete.

If only the red light is flashing then the battery is not charging at all. Ryobi identifies in the manual that batteries will not charge below 43 degress F. If your batteries and charger are in the garage in a cold climate, warm the batteries to room temp in the house and then try again. If the charge starts when the batteries are warm they will continue charging for the full cycle even in a cold area.

Any battery left in a charger is still hooked up to a circuit. Depending on the charger this can mean a slow discharge is possible. Ryobi's Maintenance Charge Mode means the charger will 'refresh' the battery at regular intervals, usually every 30 days. A battery's lifespan is determined by how many times it is discharged/recharged so to get 'the longest possible battery life' it is desirable to reduce the number of times a battery is recharged. One way is to use the battery until it is dead or near so another is to remove the battery from the charger when it's fully charged to reduce the number of times the charger refreshes the battery.

If both lights are on and both are flashing the charger is reading the battery as defective and the charger won't charge the battery. If the Red light (yellow if plastic is faded) is on and the green is flashing the charger is trying to charge the battery. If the battery won't charge replace it.

When you insert a battery for charging, which light(s) combination do you see?. There should be red,green and yellow and different individual lights or combinations of lights mean different things. If only the red light goes on, chances are the batteries are to cold to charge. They will not charge below 32F so if your charger is in the garage, take the batteries in the house until they are room temp then try again. If you still have a problem and the unit or batteries are are less than 2 yrs old they should be be under warranty.

Hi, my name is John. Welcome to FixYa. Take a regular ac dc volt meter and set it on what ever scale that you are charging to see that it is charging. Check that the battery clips are hooked up properly.If still no avail. Because it is still in warranty, just return it. Thanks for choosing FixYa....John

AT THE BOTTOM OF THE UNIT YOU WILL FIND LIKE 8 TO 12 SCREWS,UNSCREW THEM.aFTER THAT YOU WILL SEE THE FUSE that would be a 2.5 amp fuse.

If you need more help come back.Post / thumbs / testimonial are welcome!

I don't remember if the order is determined by when the battery is inserted or which port is used but yes, the charger will only charge the batteies one at a time. Also if you leave batteries in the charger for more than one month the charger will refresh them.

In some model the FUSE got burn.But if this is not your case one or both,batts and charger are burn.Try first to change the batt, then if this not work, change the charger.

Try to discharge the batts to the full end.Then try charge them agian for at least 12 hrs.Or contact them at https://register.ryobitools.com/contact_us/new

Could be the battery is fully charged. Otherwise if the light goes on and off, then the battery may need replaced. YOu can buy them online at a reasonable price.