20 Most Recent Ryobi Two 18V Lithium-Ion Batteries + Lithium-Ion Charger Upgrade Combo Pack Questions & Answers

Hi, Thanks for getting back to me. The yellow and blinking red indicate a defective cell. Since it has lithium cells and is that new any repair to it would be a waste of your time. Ryobi tools purchased in 2008 have a 2 year warranty. I am guessing you probably got it at a home depot and you should return it under the warranty. All new Ryobi tools have a three year warranty. Good Luck! and Thanks for using fixya!

Ryobi Two 18V... | Answered on Jan 29, 2020

Some of batteries drain very quickly. Depends on how they are used.
Feel free to check Your Local battery Manufacturer for best prices for all different batteries. You name it and they have it or they can custom make a battery for you.


Ryobi Two 18V... | Answered on Feb 24, 2019

no, I would not try this. You can charge a nicd battery on a lithium-ion charger but not the other way around.

Ryobi Two 18V... | Answered on Jun 08, 2018

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.

Ryobi Two 18V... | Answered on Jun 17, 2017

You need to have the charger tested, if you know that batteries are good then what else could it be. This LIon charger has a logic circuit in it like a computer.

Ryobi Two 18V... | Answered on May 17, 2017

The battery will power your equipment for 30 to 45 minutes, that is normal. What you're thinking of is the lifespan of a lithium battery. It with your battery will last 10 times longer than a regular NiCad battery. So you will be able to charge the battery and use it Hundreds of times before the Battery Life is depleted. Sounds like it's working as designed

Ryobi Two 18V... | Answered on May 05, 2017

Receipt will do nothing for you if it is out of warranty. Normal warranty is for three years.

Write to the company regarding your situation - see if your unit has a serial number that can give indication of age of unit. Perhaps they will replace the charger for you.

Make sure that the charger cord/connections are good and that unit is receiving power from wall.

Ryobi Two 18V... | Answered on Apr 21, 2017

If you are sure your charger is working properly then your one battery may be shot.. i even had a new battery quit charging and had to replace it. they do not come cheap.

Ryobi Two 18V... | Answered on Apr 10, 2017

time for new drill and batts

Ryobi Two 18V... | Answered on Dec 24, 2016

hello don... check to be sure that the tools are 18 volt and not 12 volt. If they are 18v then go to this website to contact ryobi directly https://register.ryobitools.com/contact_us/new


Ryobi Two 18V... | Answered on Sep 21, 2016

The Ryobi charger will flash green as it charges and then remain steady or slowly flashing green when fully charged. Flashing red means testing and if it remains steady or slowly flashing red it is defective.

Ryobi Two 18V... | Answered on Sep 12, 2016

Did you disengage the safety switch? Usually there is a lever/button in the middle of the trigger. Middle is safe. Did you get Green lights on the batteries? Did you read the manual?

Ryobi Two 18V... | Answered on May 23, 2016

I had the same problem. Your battery sounds like it got drained too much. The voltage on the battery is too low for the charger to charge. I looked on YouTube (how to charge battery that won't charge). I actually tried this today. I had a battery attached to one of those flashlights from a combo pack and the battery was drained down to 0.64v. The video I watched said take a higher voltage batter and boost it. Like a 20v to boost your 18v. Attach wires from one to the other. + to + and - to - I didn't have any. So what I did was stick 9v batteries together + to - in series I had 5 laying around. I taped a wire to the exposed terminals on the two end batteries and tapped the wire on the battery, which only brought it up to about 2.3volts. Then I just held the two wire on the battery for about a minute. It went up to about 6.3 volts I plugged it in the charger and it finally started charging. I don't know how well it will keep a charge. The batter is 10 or 12 years old. Hope this helps. And check YouTube. There is a lot of videos there.

Ryobi Two 18V... | Answered on Mar 27, 2016


Ryobi Two 18V... | Answered on Mar 16, 2015

NO! Never charge lithium batteries in a charger designed for nickle based batteries like the NiHi your old charger was meant for. Ryobi did design the new Lithium charger to be backwards compatible so you can charge your older 18V NiHi batteries in the Lithium 18V charger.
Also note, NEVER miss-match the voltage, for example, make sure you are not trying to charge 12V batteries in an 18V charger unless the manufacturer has specifically stated that the charger is capable of multiple voltages.

Ryobi Two 18V... | Answered on Feb 05, 2015

test the battery with a multi tester then if there is power your drill is the problem.

Ryobi Two 18V... | Answered on Jan 16, 2015

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