Powerwise II Charger Convert to SB50 Plug - Automatic Charger Shut-Off

[TJC2211]

I have a 1987 Marathon Golf Cart that I am fixing up. I followed the instructions you had on another post (Powerwise II Charger Convert to SB50 Plug Issue) with success to have the charger come on to charge the cart batteries. The batteries are are new (36V cart) and the charger is putting out around 12.5 amps when the charging is going. I plugged the cart in abut 8 last night and this morning around 7 it was still on and charging. Since I wasn't sure if the automatic shut-off was working and I didn't want to fry the new batteries I unplugged them. My question is should the charger have shut off within the 11 hours that I was charging at 12.5 amps? If not how long should i leave the charger on the cart to allow time tp properly charge and shut off? Is there a way to evaluate if the automatic shut-off is working?

This is my first post to this forum as I just joined a couple of days ago. If I am posting in the wrong place on this forum please direct me to the proper area to post technical questions like this. Thank you

[JohnnieB]

The first charge on a new set of batteries can take 20 hours or more and the PW-II has either a 12 hour or a 16 hour back up timer, so more than one cycle is often needed.

Try it again and if it doesn't shut off or doesn't time out, then the control board is iffy.

[TJC2211]

Thank you for the input. Plugged it back in and it ran for a while but then turned off automatically. So I have confidence that it is all working properly.