Bad battery or charging system problem? CV25S type 69511

[Bleach]

Yes I do agree about the high amp short. The positive cable is OK. Maybe it's something hanging in the starter but it's happening only after starting and the key is released.

 

[Bleach]

I didn't see your post here Bert, but wouldn't that have shown an increase in voltage?

 

[bertsmobile1]

not if you are trying to measure it with a DC meter.
If the battery is not getting hot when the engine is not running then the short has to be coming from a power source that only happens with the engine running and that is the alternator.
Remove the rectifier and see what happens then.
When the generator is feeding the battery backwards you get a lot of heat and batteries can & do explode.
Same with feeding AC into a battery because in the - cycle the battery is backwards and acting as a big load resistor.
During the + side of the cycle the battery gets a charge but not enough to overcome the discharge

 

[Bleach]

Yes I was only using the DC setting on my MM. The rectifier will be the easiest to check and less expensive to replace than the starter.
Thanks Bert.

 

[Bleach]

Just a simple dead short.:redface:
See my other post: http://www.lawnmowerforum.com/showt...l-system-CV25S?p=276075&viewfull=1#post276075