Joined
·
4,105 Posts
Little update on the E Deere. This evening I did some more with the mower. I had let it set for a week with the charger brains on and the dc dc on. I can turn off the dc dc and still leave the charger on. Seems like the dc dc and the charger device do suck a bit from the pack over a weeks time. I started with the pack charged to 41.1 and soon the pack was down to 40.8 then creeped down to 40.2 today. After doing a quick securing of the wires and contractor I took it out for a spin. Oooops. mower wanted to go in reverse. But the gearing would not let it actually drive in reverse. I flipped the pack over so I could change the polarity of the motor to the battery as one wire was too short to just swap the cables. Once that was done I wanted to see how far I could go mowing. So I started out at 40.2 volts and mowed our large side yard, large front yard and medium sized back yard. About a 1/4 acre total. Side yard had the tallest grass to mow. I did not stop until I was done and when I got done the pack was at 37.8 volts. Plenty to do the front and back again and maybe even the side. Maybe even more. So the mower is doing well and cutting well. Now for an update video of the beastie doing its job. Well pleased with the Leaf Module setup and the smart brain computer I purchased for allowing for controlled bulk charging. During charging Im sure I could go to 4.1.5 8.3 volts with this setup. It would take the module a bit higher than 8.3 volts each but still safe as the pack surface charge will settle down just about right.
So right now the mower is back on the charger with the same original settings I had set. No changes quite yet. The voltage did drop a little after I turned on the mower but the voltage sag was minimal. I'll double check the voltage sag next time out. Still have plenty to mow in the back 40.
So right now the mower is back on the charger with the same original settings I had set. No changes quite yet. The voltage did drop a little after I turned on the mower but the voltage sag was minimal. I'll double check the voltage sag next time out. Still have plenty to mow in the back 40.
Attachments
-
5.2 MB Views: 67
-
3.3 MB Views: 68
-
1.5 MB Views: 68