Ryobi 40V battery fail, Master Reset!!!

My low use Ryobi 40v battery showed an error and would not charge. I searched all over the web looking for a fix. I came across several youTube videos that were similar to my case. I tried them but no success. Finally I tried one last time with a simple variation and it worked. 40v battery is now working like new. My battery may have been a newer or later model then the others with a slight change in the reset procedure.
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Torx security bit set

[daytonarama]

It works Those who have batteries cast aside years ago because of "defective" signal may find it takes a bit more work to bring these back... Mine was two years old when it died and had sat for another two years before I found about this hack to fix it. All went as described EXCEPT when I touched the reset and hole next to it, no lights. Nada. I had to push the button while the jump was in place to get the row of lights to come on and stay on (instead of blink) . But that was only the first step. When I placed the battery on the charger, it only charged for a few seconds before flashing "defective" again. I repeated this many times. Reset, charge, fail.... reset charge fail. But each time the normal charge light blinked green a little longer. Finally about the 10th reset, the lights on the battery came on by themselves when I did the jump. First time that had happened. And when it went back on the charger, it finally behaved normally. No defective green/red combo. So apparently had to get enough juice back into it for the reset the actually work. So be persistant. I have no idea how long this battery will last given these issues. But just be aware this may be an issue on older batteries in a low charge state.

[texasbtc]

IT WORKED!

Just one tip for those watching, buy the Security Torx bits. If you buy the regular torx, you'll be highly disappointed as it won't fit.

Thank you so much for posting this video, saved us so much money!

[PigeonF]

Great video; this worked! Two notes: 1. Might mention that "dummy plug" just covers the fourth screw. 2. On older Ryobi 40V batteries, look for 3V GND and RST. They are in a different place on older motherboards. I noticed you jumped "RST" and the lone contact next to it. My "RST" was down in the corner among many others. Right next to "RST" was "3VGND" or something like that. Jumping RST to that did the reset. BTW, On one battery I didn't need to push the button to reset it; it went on its own as soon as the jumper connected. Overall, you saved me some money on multiple batteries. All work now. Thanks!

[lisacameron]

Just did this - seems to have worked! The battery is charging normally. Now if the mower only starts when I put it in, I’m back in business. Otherwise I’ll be searching for videos about testing and fixing that next. Thanks the the clear, thorough, and accurate advice.

[whitroush]

I watched this video. my battery a Ryobi 40 volt battery was not charging. I did what you said to do with the jumper wire. I used a small piece of speaker wire. It fit into the holes in the reset area. I held it in there until the lights flashed. My battery is fixed. It is recharging now . Thank you. You saved me over 100 dollars

[buffalomans]

I've tried several ways that some Youtubers introduced. However, only your method works perfectly. As a result, I salvaged my Ryobi 40V--4Ah battery. Thank you so much for your valuable contributions!

[richardlynch]

Thank you so much I bought 2 at the swapmeet for $5 each. now they are working!

[millergm]

Great help! I was going to throw away the battery until I saw this and now it works again!

[wezleyphotography]

5:44 The jumper reset my battery. Low use. Just used one day and would not charge. Can’t believe that reset isn’t built into the button. Hold for 5 seconds or something. Thank you so much for this straight forward video!

[wastedcentury]

Fantastic. Everyone in the family was amazed that I fixed it. 😀I didn't need to hold the button. It flashed one upon reset. But this will happen again. That's the best part of your video and the bonus tip. I have a lineup similar to yours with 6 batteries. BTW, I had 2 dummy plugs. After trying to pry them from the edge I realized the best method was to use a small head Phillips and maul them through the middle while twisting. Within 30 seconds that enabled enough leverage to yank them out.

[toddellis]

40V 4ah battery at Home Depot - $140.00. Tamper proof toex set at Harbor Freight - $6. Thank you, thank you, thank you!

[cwakeman]

It worked great! Those pointers about the indicator lights helped out. Your video was so helpful I didn't even need to keep watching it over again to make sure I didn't miss a step. The battery is now working and charging. Thanks.

[chrisnchina]

This worked. On mine I didn’t have to press the button, just made contact with the RST inside. Fashioned a paperclip to look like yours, worked perfectly. Thank you!

[probey]

Thanks for the simple explanation, pressing the button made all the difference.

[themallettcats]

I watched your video and read the comments and tried it. Nothing worked. But then I used my tweezers (pointy tips vs flat) and stuck them in the holes at the same time and pushed down a little. That made the lights turn on and then the single light flash. If it wasn’t for your video I would never have tried it. Thank you!

[michaeldittmer]

After watching and trying all the other nonsense this worked like a charm. I can’t believe all the time I wasted with the other “fix” methods. Thank you for a great video.

[toolflexusa]

You are the kid! Saved me $169 from buying a new like a charm!

[jpop]

On my 4AH 40 Volt, this worked by holding the jumper for about 4 seconds, then one of the lights flashed. I checked before and after voltage and both were 34 volts. I then set it in the charger for a few hours and now my blower works again! Thank you for taking the time to video this for us.

[toddbrown]

Mine was totally dead, battery error, lights on the battery unresponsive. My battery had a different looking card, but I followed the instructions and connected a paper clip between the gnd and rst contacts and pushed the button. It flashed green once and now the battery works again. Thanks!

[commentz-]

Hey man, thank you for sharing your time and effort and mostly your knowledge.
Very well appreciated.