Buggies Gone Wild Golf Cart Forum - View Single Post

NoleFan4Ever · 06-16-2019, 10:42 PM

I wrote this in your other post but I will here too.

Your Powerdrive2 works off (is controlled by) your OBC. The OBC will account for the energy units depleted from the pack and then when charged it will replenish 110% of that energy. The algorithm has three (3) stages and the Finish or Topping Off phase will bring the charger down to a very low amperage, about ~4 amps or so and will not go any lower. This is when the charge voltage is at its very highest point. Based on the calibration of your amp needle, it could read 3-5 amps during this phase, but it will never go down to 3, then 2, then 1 and then cut off. It will stay at the low amp/high voltage until completed and then cut off. If it does not cut off and just sits at 5 amps, then we have an OBC issue.

In regards to acid mist, that can be common as batteries gets older since the charger will generally run longer and push to a higher voltage to complete the proper charge needed. The main thing to do is park and plug it as you are now (or at least daily) so as to avoid excess charging, also maintain the water levels 1/4" and no more than 1/2" above your plates.

Maintaining your pack at a charged level will keep the pack healthy and avoid sulfation from building in them.

It would be good to reset your OBC right now just to clear it out and start fresh. Just disconnect the main pack negative post and leave it for 20-30 minutes and then reconnect it. If this is a Series cart (FNR Lever), you can place it in Rev and press the pedal until the reverse buzzer quits sounding. Either way will work fine.

06-16-2019, 10:42 PM	#2
NoleFan4Ever MOD of all BS! Join Date: Sep 2011 Location: Florida Posts: 17,477	Re: quick question; charger not going back I wrote this in your other post but I will here too. Your Powerdrive2 works off (is controlled by) your OBC. The OBC will account for the energy units depleted from the pack and then when charged it will replenish 110% of that energy. The algorithm has three (3) stages and the Finish or Topping Off phase will bring the charger down to a very low amperage, about ~4 amps or so and will not go any lower. This is when the charge voltage is at its very highest point. Based on the calibration of your amp needle, it could read 3-5 amps during this phase, but it will never go down to 3, then 2, then 1 and then cut off. It will stay at the low amp/high voltage until completed and then cut off. If it does not cut off and just sits at 5 amps, then we have an OBC issue. In regards to acid mist, that can be common as batteries gets older since the charger will generally run longer and push to a higher voltage to complete the proper charge needed. The main thing to do is park and plug it as you are now (or at least daily) so as to avoid excess charging, also maintain the water levels 1/4" and no more than 1/2" above your plates. Maintaining your pack at a charged level will keep the pack healthy and avoid sulfation from building in them. It would be good to reset your OBC right now just to clear it out and start fresh. Just disconnect the main pack negative post and leave it for 20-30 minutes and then reconnect it. If this is a Series cart (FNR Lever), you can place it in Rev and press the pedal until the reverse buzzer quits sounding. Either way will work fine.