Question about Ryobi Multi-Volt Battery Charger
What do the three lights signify on the top of the charger?
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Posted on Jan 02, 2017
talked to Ryobi and they are vague. It can either mean that the battery is bad, or the charger is bad and another one that maybe the contacts of the battery are dirty or not seating fully in charger. What I would look for in this instance first unplug the charger and look into charging slot to make sure the terminals of the charger are not bent and they come out into the cavity where battery would go. If not gently pull terminal into opening and retry. Sorry I couldn't be of more assistance
Posted on Dec 31, 2008
Had the same problem with some makita batteries, Was going to throw them away so decided to take apart and see what was happening. The are made up of 1.5 volt cells soldered together, found that many had .9 volts or less and others had 1.5 or more. This means that some of the cells had gone bad (probably due to lack of chemical reaction). Found that if I collected all of the 1.5 volt together could charge just fine. Problem is it is very hard to get them all soldered back together and even harder to enclose them. If a mfg. could come up with some way to change cells individually they could make a lot of money and save us a lot. So the answer to your question is buy you at least one more battery and recycle your old one.
Posted on Mar 28, 2009
SOURCE: light on ryobi 18v charger
More than likely a defective battery sinse the other ones charge fine..
Bring it back for exchange of another one..
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Posted on Jul 31, 2009
I had the same problem, my understanding was that since the batteries are nic-cad, they have a memory so in short you are supposed to charge the batteries only when they are depleted. They have to be COMPLETELY depleted the first 3 or 4 times of use. I ended up replacing the two I had, followed this and have not had any problems since. Hope it works for you.
Posted on Apr 08, 2010
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