I have a power problem with a RIDGID 18v rechargeable drill. The battery charge indicate charge and the unit won't start . One of the batteries was left in the charger for several weeks. I use this tool for about 6 hours a year . These are replacement batteries as well. Thank , Al Federici

hi Terry.
you could try homebase.or ebay will have them.
or this link should show you where you can buy them.
battery charger for ozito drill Google Search

check the charger first for correct operation
power tool batteries are prone to memory block so if you do not completely drain a battery ,it will recharge only to the last voltage point recharged
to ways to fix
take it to a battery shop that may be able to force charge the pack
have the batteries in the pack replaced with better quality batteries
buy a new battery pack from an authorized dealer

Either the charging adapter is faulty or the battery is worn out.

If the recharageable battery is more than 3 - 4 years old then the battery could be worn out.Rechargeable batteries have a finite number of charge and discharge cycles andwill lose their charge capacity over time, i.e. won't charge to 100% andgradually the charge reduces until the battery won't charge up at all. OR Thebattery shows a 100% charge but when the adapter is disconnected the batterydrops off to zero capacity in a very short time. If the battery drops to anunacceptable charge level then the battery needs to be replaced.

Rechargeable batteries do have a lifespan, they won't recharge forever. If you have fully discharged the batteries then fully recharged them and they still don't have full power or they only last a couple minutes then they are done. If they won't charge or the charger shows them as defective, the only fix is to replace them.

I have just had a similar issue I left the drill unused for a period and when i placed it in the charger the charger showed the battery as charged after about 15 secondseconds.

Following a internet search i found a site that suggested for a imlar problem with a camera jump starting the low battery with a 9 v battery. I had a spare from the drill which was fully charged so placed a contact from + to + and - to - and held for about 2 mins. I then placed the battery back in the charger and it started charging. Running the battery down as we speak to recharge again well worth a try. If you dont have a spare maybe the 9 v would work

Depending on how old or more to the point how many times you have already charged the battery, it may be worn out. All rechargeable batteries do reach a point where they won't charge up anymore. If you have fully discharged the battery and tried to fully charge it up again and it won't take a charge or only lasts a few minutes on a charge it may be time to recycle it and buy a new one.

was this battery ever left on the charger too long?
Once rechargeable batteries start to fail holding a charge they should be recycled and you'll have to buy new ones

It's a lithium battery.I can tell .Have same problem sometimes. Either need to clean the contacts on the battery and drill (use Paslode tool cleaner,aereole spray) or get a new battery. Most of my battery powered tools are Ridgid, I like them and they usually hold up , but like any other brand they can be unreliable. I buy an average of 5 new batteries a year. Some last about 6 weeks , others 3 years.

Yes. It's kind of like a flashlight when your batteries get low the light get dim, but if you replace the batteries light gets bright again. The drill will get weak as battery get low.

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.