![]() Please pardon my ignorance regarding batteries. Where is the Zivan charger located on the GEM? Thank you for the great information! I was beginning to wonder if anyone on this forum was ever going to respond to my questions. One set of these all failed after just one year of service. The Mexican made batteries that sell for under $100 just do not last. Bottom line with batteries is that you get what you pay for. We have several that are still good after more than five years of regular use. NAPA part number 8271 which is a GEL group 27 made by Dekka. We do however, use marine batteries with excellent results. The question is are they of sufficient amp hour capacity to power the GEM? We have never tried running the smaller group 24 batteries in any of our vehicles because of steep hills, heavy loads, and a large operating range. I believe Optima deep cycle AGM batteries will work with the Zivan charger. The fuse is soldered in place on the circuit board. ![]() This can be checked and replaced by dismantling the charger and checking the resistance. If the charger will not not power up at all even with good, charged batteries, there is a fuse inside the charger that may have blown. The documentation from Zivan will tell you how to configure the charger for each type. There is a small rotary switch on top of the charger. Does the charger indicate an error code? Is power getting from the charger to the batteries? Are the batteries connected properly? If you must replace the batteries, the Zivan charger can be configured to correctly charge various types such as GEL, AGM, and also has profiles for different brands of wet batteries. The batteries can be individually charged with an appropriate 12 volt charger and then load and voltage tests will tell if they are any good. I would suggest that you first determine for sure whether you have a battery or charger problem. Zivan also has good techical support and reasonable repair service. We own three 2002 GEMs, which all use this charger. Documentation can be downloaded from their website. I don’t want to damage the electrical system.Ī 2002 GEM should have a Zivan model NG1 72VDC charger. Probably not more than 5 miles per day then charge in the evening.Ĭan I successfully use non-oem batteries on my GEM? If so, are there any specs that I need to meet? Any specific battery brand/type suggestions. Lastly, the GEM will be used for low mileage trips only. I like the gel batteries because I don’t have to check/fill the batteries monthly. Also, I can get Optima batteries (blue top, group 24, 55 amp hours) at Costco for $155/battery. I can get a Costco/Kirkland deep cycle group 27 for $70/battery and install myself rated at 115 amp hours. If I have GEM replace the batteries it’s about $250/battery plus extras, i.e., more expensive. I can buy SIX new Trojan batteries from a local golf cart repair shop. (Yes, I tried charging with a regular charger first, then charge with the GEM system. They are all dead and won’t hold a charge. ![]() It has Trojan deep cycle wet cell batteries. Here’s my situation: I inherited a 2002 GEM two seater golf cart (sorry don’t have model number). QUESTION: What non-OEM batteries will work in my 2002 GEM two seater golf cart? Will Optima gel batteries work? I already did a search but didn’t find any posts that specifically answered my question.
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