boovuc 1,090 #26 Posted December 21, 2014 Lagersolut, If you have a good heavy tractor battery in another machine, swap it and see how it charges. Two of my oldest and best batteries charge perfect on the 3 amp circuit. The cheezy walmart batteries and a cheap Advanced battery don't. Share this post Link to post Share on other sites
Lagersolut 764 #27 Posted December 21, 2014 Lagersolut, If you have a good heavy tractor battery in another machine, swap it and see how it charges. Two of my oldest and best batteries charge perfect on the 3 amp circuit. The cheezy walmart batteries and a cheap Advanced battery don't. Yep , already tried that , 2 other tractors here I had the batteries out and get the same results , the old battery that was in this tractor is gone , decided to put a new one in, purchased the new battery at Lowe's. I'm considering running this charge circuit through a toggle switch so it can be turned on and off, the only thing on the battery is the starter and a pair of LED lights installed on the back . My main concern with the overcharge or 16 volt charge/ is it being hard on the battery and the 12 volt rated lights installed, ( spliced the feed for these at the ignition switch hot ) this engine is an M10 with ignition from the magneto so I'm not pulling off the battery from a coil . Not sure if the Lowe's batteries are what would be considered " good " or not, I do know the Diehards are but they are a little pricey ....if they last 5-7 years maybe it's worth the additional 20-30 bucks. Share this post Link to post Share on other sites
meadowfield 2,828 #28 Posted December 21, 2014 (edited) Am I missing something? Isn't this an unregulated system? So it just rectifies, if you run the motor faster then you get a higher voltage. You need to either switch the charge circuit out, or dump the power into something else. Also a new battery will hold charge better and also present a lower resistance to the charge circuit, so the voltage should be lower for the same charge current. A weak battery will show a higher charge voltage if charged unregulated. Mark Edited December 21, 2014 by meadowfield Share this post Link to post Share on other sites
Alrashid2 426 #29 Posted 3 hours ago 11 years later, I know, but was there ever an update? Share this post Link to post Share on other sites
