USMC_Mustang

Hey, All: Commenting on several points presented in related posts: 1. I see the same 70% charge on my Ryobi mower if leaving it on the charger for more than 48 hours. If simply charged overnight, it displays 100%. 2. Regardless of what the display indicates (70% or 100%), I seldom get more than 45 minutes of run-time from it. Sometimes I might get an hour from a "100%" charge, depending on how tall the grass is. 3. Regarding replacement batteries, I did try replacing the OEM batteries with LiFePO4. A four-pack of those would work great and provide extended run-time, but the mower's controller won't let the machine start with voltage exceeding 52.5V. The LFP battery pack reaches 54.5 after a full charge, but that exceeds the controller specifications and it won't turn on. Similarly, the controller is tuned to turn off the blades at 48v and allow enough remaining power to get the mower back to the barn. However with LFP batteries the controller shuts down the blades AND the drive motors simultaneously. 4. I get the 'wheel-squeak' that someone posted in a different thread; first from the left-rear (a few months ago) and now from both. I'm not aware of any way to grease or diagnose those drive motors, but I suspect some fault or wear condition is contributing to the very low runtime. Thanks!