When it reaches the predetermined cut off voltage it shuts off and sounds an alarm then you measure the individual cells and compare them to the readings before the pack test and that will pin point your bad cells or batteries. It tests the whole pack together at a specific draw. There is a special load tester for golf cart batteries. The rest of your system will leak magic smoke if it gets much more than 36 volts constantly. the 36 volt motors run well on 48 volts, Many of the carts you see that have been upgraded to 48 volts use a 36 volt motor to get about 33% more speed and torque. Go for it and the extra 2 volts will give a tad more speed at WOT. The 8 volt battery will unbalance the pack, but at the age of your other batteries you haven't got much to loose. The beauty of this charger is it will hold a charge of around 1-2 amps till cut off and not fry the regular balanced battery pack. Most chargers of the age that would have come with that cart are the ferroresonant, capacitor type and they will charge till the timer cuts them off if the automatic function does not see enough voltage(app 42-44 volts) to shut it off. Most won't recover from that low a gravity reading. Below 1.20 and it is usually dead or severely discharged. 05 points on the gravity between two cells in a battery means you have weak or dead cells. When fully charged the cells need a gravity of 1.260. An automotive load tester will show very little about these batteries. A very good way to test them is with a hydrometer.
8 VOLT GOLF CART BATTERY LOAD TESTER INSTALL
Usually we try to install a battery of about the same age and charge level of the rest of the pack. The accepted rule of thumb is that the old or weaker batteries will bring the good one down to their level of good.
8 VOLT GOLF CART BATTERY LOAD TESTER FULL
Putting an 8 volt in your 36 volt system will run for a while, but that battery will usually be at about 50% of the full charge rate and the charger will boil the water out of the others while it is trying to charge the one 8 volt that needs more voltage. Re: Golf Cart Battery Question- John T,B&D,ET AL in reply to GarryinNC, 06-29-2013 18:47:30 Club Car has half of the charger system that you put on the shelf and plug into the wall and then when you plug it into the cart, the charger computer in the cart sets everything else into action. The big drawback is they eat battery run time so much worse than the solid state controls. Actually I have always liked the resistor carts myself for their simplicity of repair and they are cheap to repair also. you are dealing with one 36 volt resistor cart. Of course that doesn't make any difference in your case. We read the battery service units used each month with a Club Car infrared meter that works through their battery light and we rotate the carts so the usage is kept about the same and that helps our longevity. We opted for refurbished carts next time with the 6 8-volt batteries and have had much better service and much longer run times.
We had 17 sets of them -warranted within the first 2-1/2 years and 23 more sets that were almost gone when the lease was expiring. They have a plant in our county that makes the plate grids for them. Trojan's quality control took a huge hit when they produced 12 volt golf cart batteries for Club Car. The Crown ones did not hold up but a couple of years so when Club Car replaced them under warranty the went back to Trojan. We are talking Club Car 48 volt Precedent Carts with 6 8- volt batteries, They came to us with new Crown batteries. (have 40),then hydrometer test all the old ones so we can get the sets about even and then we get a year or two out of what we would have scrapped the other way. They are like bad kinfolk, they usually drag everybody down with them!! What we do when we have battery problems like this is put all new ones in the worst carts, The old batteries seem to set the pace when you mix them. The reason for this is that when the other 5 die you will be left with one with probably 1/2 the life left in it and you will have 5 new going down to the same level as the one you have left over and hate to throw away when it still has some life in it.
Re: Golf Cart Battery Question- John T,B&D,ET AL in reply to GarryinNC, 07-01-2013 20:04:03Īctually you would have been better off if you could have found a used battery with about the same life left in it.
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