charger help

swampsat

i have a 97 DS Club Car and the charger will not turn off. I did replace the O.B.C and it still is charging voltage is at 62.7. I thought it should shut down around 60 volts any help would be great

BGW

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rib33024

it can get to 65 or 67 volts, but most will turn off at around 63

rib33024

Quote JohnnieB


In fact, the charger may have to take a 48V battery pack up to 67V, or above, to fully charge it.
On the other hand, 59V may fully charge a 48V battery pack.
The voltage it takes to fully charge a 48V battery pack depends on who manufactured the batteries in the pack as well as their age and condition.

By definition, a lead-acid wet cell is fully charged when the specific gravity of the electrolyte ceases to increase while a charging current is passing through it. Since open-circuit voltage increases/decreases as the electrolyte's specific gravity increases/decreases, open-circuit voltage is an indirect or secondary means of monitoring the electrolyte's specific gravity and is often used to do so.

An ideal charger would monitor pack voltage and when it ceased to rise over a predetermined period of time, it would stop the regular charging mode and go into a float charge mode, however few, if any, chargers typically used by golf cart owners are ideal. Most of them simply shut off at a predetermined voltage that is high enough to almost fully charge most battery packs without being so high that repeated use would significantly harm battery packs that are fully charged at the lower end of the typical voltage spectrum needed to fully charge a battery as determined by empirical data.

Here is Trojan's recommended charge curve for a single (2V) deep cycle wet cell. There are 24 cells in a 48V battery pack, so do the math and you get 58.80V to 66.96V. However, Trojan uses an electrolyte that is 27.7% sulfuric acid by weight (SG = 1.277) and other battery manufacturers use different concentrations, so the on-charge voltage that is typically reached when their batteries are fully charged, will be higher or lower.

shadowman

also to add it may take 16 hours before charger shuts off so you,ll have to leave it go that long.......as long as theres nothing odd going on don,t worry much about voltage its more important to let charger do its job............and if it does run 16 hours and shuts off wait 10 minutes and start over and it may take another 5 or 8 hours before charger shuts off it all depends.......................

swampsat

thanks for the help just did not know what the cut off point was for a powerdrive charger. I dont work alot on club car. But on Yamaha, Tomberlin, Western, Polaris every day

btbowhunter

Sounds like my question has also been answered here. I just replaced my 6-7 year old trojans on my 48v club car that were dead dead dead with 6 new dekas. With the trojans, (when they were working), the powerdrive charger shut off after 10-12 hours when I had used the kart hard. Less time for a short use. Now my charger is still on after an overnight but only reading about one amp on the chargers meter. Checked with a meter and I'm at 54.5 volts. Is all OK? I unplugged the charger for fear of "cooking" the batteries. Just wanna be sure......Should I just plug that ole sucker back in????

shadowman

yes plug it back in and let it go...you might have to let it run thur 2 charge cycles but let charger do its job it will shut off at 16 hours keep an eye on time no guessing.......................................