Top 20 Ryobi Two 18V Lithium-Ion Batteries + Lithium-Ion Charger Upgrade Combo Pack - Page 3 Questions & Answers

Yes you can try that.

There is some kind of a problem with the lithuim ion batterys from ryobi that were sold over this christmas time in the combo packs Lot of other people have been saying exactly the same thing you are saying all lithium ion in combo packs olny ryobi and just got them .Ryobi dosn't warranty the batterys but they do warrenty them if its faulty workmen ship Your going to have contact them and i sure they know of this problem good luck

Check the date on the battery, all batteries are dated, if they are not 2 years old, they will be replaced for free, that goes for the charger too. I have the same charger, but I didn't get the li-ion batteries yet, still using the ni-mh or whatever they are, they were replaced, no problem by home depot. If they don't have a date, they have a date code, you can look that up on line. Check it out.

This is not right. They should last much longer then that. I have one of the more expensive 18V lithium batteries (the one with the button on it that tells you if it needs charging or not) and I can use mine almost all day before it needs to be recharged. I do construction work and I use my Ryobi products almost all day. Either both batteries are bad (I don't believe that is the case) or the charger is not charging them all the way to a full charge. With this charger, you do need to make sure that you remove the batteries as soon as the green light comes on. It is not good on these batteries to stay charging after they are fully charged. You also should not leave the charger plugged in without any batteries charging.Please tell me more about the charger. When you plug in the charger, does the red light come on? When you plug in a battery, does the red light stay bright and the green light blink? Does the red light go off and the green light stay on bright when you remove it from the charger?
If the charger is not working correctly, then return it for a new one.

Do not try this since the charging circuit for lithium batteries are different than nicad! Improper charging of lithum batteries can cause a fire.

I work with cordless tools for a liveing. Its the batterys that are the expensive part ryobi will sell the tools dirt cheap. Iwould contect RYOBI the batterys may have some kind of warranty they don't realy say and they can not be servised. Hears a # 1800 525 2579 this is probably why they gave you so many batterys first place i've never heard of 7 batterys in one combo pack

This applies to Li-ion. NiCd is probably somewhat different.

Unscrew four security screws on the bottom of the battery. If you don't have the right bit you can grind down the center pins in the screw heads and use a T15 bit.

Unscrew the hex-head screw in the center of the protruding post at the top of the battery. It may be non-standard in size but a small metric hex key wrench works if you are gentle. The four corners of the battery cover should be loose now.

There are still two plastic clips holding the top cover to the main unit near the centers of the long dimensions. Gently push a knife blade into the crack between bottom and top to release the clip on each side.

As you lift the top cover off you should push down on the contacts near the top of the post so you don't pull on the attaching wires. Eventually the contacts should pop free and the top cover detaches.

Detach the wiring harness for the status LED from the circuit board. You can now remove the combined circuit board and battery pack from the lower case.

Six screws attach the circuit board to the battery assembly, along with several solder connections, but you probably don't need to go this far. You can now test and possibly replace individual cells.

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

I would not say they are not defected, but I think they are not getting fully charged. I have the same problem with my battery once I have used it all day and the red light comes on from the fuel gauge. I have the P104 battery. I would return your charger and try to charge them on the new one first. If you have the same trouble, then return the batteries for new ones.

Ryobi is one of the cheapest drills. They are good for small projects. You need to upgrade to a better drill like milwalkie or Dewalt. Seems if you are drilling in concrete you need a corded hammerdrill. This will get the job done.

How long have these 2 batteries been standing idle without being charged? Lithium ion batteries can still discharge if left for too long. There is a voltage detector which detects whether the cells are too far discharged to be safely charged again and if that occurs the circuit is broken and the batteries will be deffective in the charger.
I have had the same problem with these and other LI batteries. Answer is replace the batteries and then make sure they are given a quick charge on a regular basis. However common advice seems to be that LI's should not be kept fully charged, but just partially charged until needed, then charge them for use, especially if usage is sporadic

Hi,

Yes, they will get hot... that is normal...if they get too hot the charger will shut down and give and error flash...

heatman101

If both batteries won't hold a charge the problem may be the charger (not providing a full charge). If one battery is OK and one not holding a charge, the problem is probably a defect with the battery. I know there expensive, (I recently had to replace one for DeWalt).

One thing I have found with the ryobi 18V batteries in particular, and cordless tool batteries in general, is that if the battery is completely dead, the charger simply will not recognize it. This is referred to as a "threshold level" by some manufacturers. One solution that has worked well for me in the past is to take a battery that is known to be good and has a charge and use small jumpers to hook it to the problem battery, terminal for terminal, for about 1 to 1 1/2 minutes, much like jumpstarting a car. Then place the problem battery back in the charger and more often then not, it will take a full charge. Wear safety glasses any time you're messing around with batteries, because although the risk of explosion is minimal, it is still a risk.

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.

You are probably skeptical that maybe the directions telling you not to do that are just intended to get you to buy more stuff. We've all been there. However, Li-ion batteries are very different from nicads. Used incorrectly they can be downright dangerous. So, no, don't try using the nicad charger for the Li-Ion batteries.

no its is most likely internally shorted out. Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

There is a guy on ebay who does it for $55.34 total. His address is:
Tom Stewart, 4761 River Valley Way, Bowie, MD 20720

The link is below:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110549349770&ssPageName=STRK:MEWAX:IT

No, just return it, for the money they should give you one that works. It is common to get a defective Ryobi 18v lithium battery. I've had 2 out of 7 purchased that wouldn't hold a charge. But when you get a good one they work awesome!

Take it back to the store and tell them it is no good, and get a new pair of batteries, take the charger too. I had the same thing, brand new batteries, gone in weeks, they replaced them, no problem.