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There must have been an issue with some older blade motor controllers. Mine smoked when the mower was sitting idle with the key on, just stopped to talk to my wife. At the service place, there were about 4 other Ryobi's with the same problem. Luckily it was repaired under warranty. Since then...

I've completed 2 mows with the LiFePO4 battery, and it's a world of difference from the oem batteries. I was finally getting maybe 10 - 15 minutes with the old batteries. You can see on the attached graph the current and voltage during a session. The blades draw more current, with total current...

The radial or transverse load from pulling on the handle is a small effect, which is generally ignored. For instance, a 1/2 inch grade 5 bolt, tightened with 70 ft lbs of torque generates a clamping load of about 10,000 lbs. The clamping load goes through the threads and the bearing face of the...

The frame is a stand alone support for the cells, separate from the box. The long rails are secured by the battery tray end clamps. The ends of the plywood box have cutouts to fit around the struts, and the box is just slightly shorter than the struts, so the clamping force from the tray goes...

No, but I did stay at an Holiday Inn Express last night.

The blade controllers, blade motors and the keyswitch all failed. Parts are backordered and are not expected until next year.

The android app for the overkill solar bms has nice data logs for the complete battery as well as the individual cells. Does anyone know if that data can be exported?

My mower also had been losing mowing time for the past year. I found this thread and it inspired me to go ahead with putting a battery pack together with 16x 100 Ah cells and the overkill bms. I got the batteries from a us stocking warehouse, and the delivery and quality were excellent. The...