Jasesun

Valda sounds like you are doing everything right. T1 and T2 are just communication / temperature terminals. Don't worry about them. If you are getting 39 volts which is what you should be getting for a fully charged 36 volt battery then the batteries is fully charged. The problem you have is different from the one in the video and what I have. Its really makes no sense that the battery is discharging by itself after two hours. Maybe one cell is bad. If you are able to get the multimeter probes wedged in between to test each individual cell you might be able to find a bad one. Each cell should measure around 4.0-4.2 volts for a total of 40-42 volts when fully charged. Or there is a short somewhere that is causing the batteries to discharge If you look at the actual tool you are using it only connects to the positive and negative terminal of the battery. T1 and T2 are used for charging only. If you get 39 volts at the positive and negative I don't get why it wouldn't power up your tool for at least awhile. Sorry can't help more

Valada - so 1) the video did say this wouldn't work on all ryobi batteries but maybe we can get yours working 2) did you test the voltage at the positive terminal to the CL10+ , that is what they did at time :25 seconds in the video, that needs to be a voltage of 0 3)When measuring the voltage of the battery when you say its 5v are you measuring from the + terminal and the CL- blob of solder. You can not use the negative terminal, when I measured from the negative terminal I get something like 5 volts. you have to bypass the protection circuitry that's built into the regular negative terminal. 4) just making sure when you charged it you had one lead connected to the positive terminal and the other to the negative blob of solder called CL-. It will not charge if you just clip it on to the negative terminal . It was a pain for me to get the alligator clip to stay on that little blob of solder, but when I finally did the ryobi battery took a charge.

Decided last month to start my cordless tool collection. I'm a home DIYer who has tackled some medium sized projects. Wasn't looking on spending too much money. Went back and forth on some different brands and decided the m12 line could probably handle most of what I ask it for and its the biggest 12 volt line out. So far very happy with the Fuel version of tools I got especially the Gen 2 stuff. As far as the batteries the way I understand it is youll get a little more power when going from the compact to the XC. The compact has 3 batteries wired in series to get 12v. The XC has 6 batteries, 2 -3packs, wired in parallel. The extra set of batteries allows more current to get to the tool when it needs it. The 4ah is "noticeably stronger" than the 2.0ah compact because it has more batteries. The 4.0ah XC to the 6.0ah XC has the same number of cells just each cell is capable of a larger amp hour, so in that case I doubt you'll see much of a power increase, but of course it will last longer.

Hey Oshurty, my buddy gave me some 40V lawn tools last summer. They batteries he gave me both flashed red and green. Did some research online and it seems the batteries had dropped so low the charger detects them as bad and won't charge them. On top of the the terminals you can test to see the voltage on the outside do not give true voltage as there is protection circuitry. If you are willing to take it apart and tinker there is a video on youtube that I used to help me. Also attached is how I got mine up to a voltage that the charger would detect. I used 4-9volt batteries in series for 36volts. When the battery got up to around 26 volts I tried it in the charger and it still didn't work. Then I got it up to 32 volts and put it on and it took a charge. Been working for 6 months now no problems.

Has anyone heard what the extra two battery contacts will do on all new Ryobi brushless tools? One video online said they peaked inside and its two thin wires going to the brushless motor circuit board. I'm deciding on whether to build my cordless collection with Ryobi or Ridgid. The Ryobi brushless seem to be on paper well matched to the more expensive Ridgid, and if these two extra contacts somehow provide more power when need it might help me lean towards Ryobi. However I can't find any mention from Ryobi what the extra contacts might provide.