How do you test golf cart batteries?

In this manner, can I use 12 volt batteries in my golf cart?

Deep cycle batteries are going to be your best bet for more run time. Some electric carts are 36 volt, and most newer ones are 48 volt. Some carts have a 12 volt plug like a cigarette lighter, so if you convert to 12 volt, you will have to rewire that. Lead acid batteries in anything, will last about 5 years.

One may also ask, can you replace just one golf cart battery? The reason is that a deep cycle golf cart battery will not exhibit signs of needing replacement until after they are fully discharged. If one battery is bad, though, then we do recommend replacing all the batteries at once since it will cost more in the long run to replace one battery at a time.

In this regard, should I leave my golf cart plugged in all the time?

You should charge your battery even when you've used it for a short period of time. The charger for your golf cart battery is automatic so it will turn off automatically once fully charged. Keep the golf cart battery plugged in while parked. Do not keep it off the charger for a long period of time.

How much does it cost to replace the batteries in a golf cart?

The general consensus for battery replacement ranges from $800 on the low end to $1500 on the high end. Some packs cost as much as $2000 when you start dealing with 72 Volt systems and sealed batteries. But, for the typical lead acid battery pack, $900 to $1500 is about the norm.