Rescue the “Dead” golf cart battery
I left my golf cart battery charger unattended for a long period of time and now it does not turn on. What should I do and why did this happen?
Most new electric golf carts have a “tow” or “maintenance” switch that is a type of kill switch inside the battery compartment. If one does not put this switch into the ‘tow’ or ‘off’ position while the golf cart is charging, the golf cart batteries will be drained at a rate of about one million volt per day due to the controller’s requirement for the slight amount of power.、
After a few months, the golf cart batteries will become ‘dead’ or weak. The newer kinds of electronic golf cart battery chargers have to sense a particular amount of voltage coming from the golf cart batteries before the battery charger will come online and charge the battery.
If the golf cart battery charger does not sense the batteries, this is most likely because the battery voltage has dropped below the amount required for the golf cart battery charger to read and recognize as batteries that need to be charged.
One way to remedy this problem is to use an older type of non-electronic 36 or 48 volt battery charger. This will very likely bring the voltage of your golf cart batteries back up to the required charge that the newer battery charger is looking for. Many times this ‘critical charge’ amount is about 31 volts. Of course this varies from model to model.
Also, it is worth noting that if you opt to use one of the older battery chargers, you may need to use some type of adapter in order to be able to plug the older charger into the car. Once everything is set up, it shouldn’t take any longer than about thirty minutes for this older style charger to fully charge the golf cart battery.
Yet another option is to charge both of the batteries at the same time with a 12-volt charger. You would connect the batteries in a series and attach the battery charger as well. Once the critical required level of charge is reached, then you can use the newer, electronic battery charger as normal.
Source: www.leoch.com
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