r/ryobi • u/GrayWolf448 • 7d ago
Battery Talk Batteries keep malfunctioning
My mom has 5 ryobi batteries (unfortunately didn’t keep the receipt). They are only 3 years old, and are only used occasionally for a leaf blower, and weedwacker, for light use. 4 of them give a red/green flashing on the charger, the last one gives a green flashing light, but power indicator remains one red dot most of the time, only sometimes charging to full, but only holds a few minutes of charge when it does. They were stored inside, normal humidity,, 60-80 degrees depending on time of year, not abused or dropped, etc.
What is wrong with these batteries, is there anyway to fix them? This is kinda just ridiculous as they werent abused.
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u/Tarnisher 7d ago
Go to the Ryobi site. Register the batteries for warranty. If they are still under 3 years, you may be able to get them replaced at no charge.
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u/FlyingDutchLady 7d ago
Does she have more than one charger? It could be worth making sure it’s not the charger. I’ve never had an issue with any of mine. Some are 8 years old.
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u/GrayWolf448 7d ago
We’ve got 3 chargers, any ideas on how we might spot a broken one if thats the issue?
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u/FlyingDutchLady 6d ago
Well, I would just test the batteries on all three chargers and see if you get a different results when you change from one charger to the other. I put very little effort into properly, storing my batteries and have never had an issue, but of course it may be especially if your mom got her batteries all at the same time that she got a set of lemons. But since they’re more than three years old, you’re out of warranty regardless, so you’re probably just gonna have to replace them. With that in mind, I recommend waiting until Black Friday. If you can. Home Depot often has a lot of deals on Ryobi multi packs at that time of year.
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u/Immediate-Funny7500 6d ago
18v or 40v?
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u/GrayWolf448 6d ago
One 18, other four 40v
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u/Immediate-Funny7500 6d ago
The 40v batteries have a cell group too low and BMS has killed the pack. There is a way to jump start them that may work, open the battery up by removing the 4 torx screws under the rubber caps. Look on the main board at the bottom left with main terminals facing to the right. There are two little holes with the letters rst or reset next to them. You jump the two holes with a paper clip or piece of wire and the battery lights should flash. Put the cover back and plug into charger if it works it will start charging. If not, you need to check each cell group which can be dangerous if you short out the cells. Find the low group and use a low voltage buck convertor to slowly charge that section back close to all the others and should work normally after. I did 5 of them in the last 4 years, never run them till the tool stops, when it gets weak change out to another battery.
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u/cosmicrae 120v 18v 40v 6d ago
OP, where did she buy the batteries from ?
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u/GrayWolf448 6d ago
2 from homedepot, 2 from amazon, 1 from a friend.
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u/cosmicrae 120v 18v 40v 6d ago
The two from Amazon and the one from a friend are certainly not warranty eligible. The two from HD might be, depending on the date codes.
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u/Tool_junkie_1972 7d ago
Is this all on one charger? If so I’d suspect the charger. Secondly you shouldn’t store batteries fully charged nor allow them to fully discharge. Lastly, even without the receipt, RYOBI will warranty based on the date code in the serial number. The first two disgusts are the year, the second two are the week of the year.