Just picked up this cart yesterday in a "horse trade" kinda deal... so I don't have much invested into it. (swapped one of my AR15's for it) :mrgreen:
I put the Fluke on each of the six 8V batteries and NONE of them showed any sign of life. All six were stone cold dead.
I don't have a 48v charger yet... so being the mad scientist type... I decided to try something to breathe some life into these things.
I had some scrap aluminum laying around and made a pair of bus bars to connect all six batteries in parallel.
The only battery charger I had was an old 12v car charger that was aquired 30+ years ago.
I connected the charger and watched it occasionally over the course of a few hours... Once I was comfortable with the setup I let it charge overnight.
By morning they all measured a bit over 7v each.
I decided to connect a marine battery to the other end of the system and that helped bring them up to 7.8v each over a few more hours.
I wanted to confirm that the cart was mechanically sound before buying a new set of batteries... so I dropped them back in and made a few laps around the property (1acre).
They didn't last long and the cart was obviously getting weak so I parked it back in the garage. I put the Fluke on it quick and saw they dropped to 43v.
A few hours later... they leveled out and are now sitting with 7.5-7.6v in them and total is at 45.6v combined.
Is there any hope for these things if I hang a decent 48v charger on them or let them trickle charge for a longer period of time ? or should I just drop in a new set ?
Quite frankly I'm surprised I got any juice in them at all.
I put the Fluke on each of the six 8V batteries and NONE of them showed any sign of life. All six were stone cold dead.
I don't have a 48v charger yet... so being the mad scientist type... I decided to try something to breathe some life into these things.
I had some scrap aluminum laying around and made a pair of bus bars to connect all six batteries in parallel.
The only battery charger I had was an old 12v car charger that was aquired 30+ years ago.
I connected the charger and watched it occasionally over the course of a few hours... Once I was comfortable with the setup I let it charge overnight.
By morning they all measured a bit over 7v each.
I decided to connect a marine battery to the other end of the system and that helped bring them up to 7.8v each over a few more hours.
I wanted to confirm that the cart was mechanically sound before buying a new set of batteries... so I dropped them back in and made a few laps around the property (1acre).
They didn't last long and the cart was obviously getting weak so I parked it back in the garage. I put the Fluke on it quick and saw they dropped to 43v.
A few hours later... they leveled out and are now sitting with 7.5-7.6v in them and total is at 45.6v combined.
Is there any hope for these things if I hang a decent 48v charger on them or let them trickle charge for a longer period of time ? or should I just drop in a new set ?
Quite frankly I'm surprised I got any juice in them at all.