48V 150Ah Lithium Golf Cart Battery, Built-in Smart 200A BMS, with Touch Monitor & Mobile APP, 4000+ Cycles Rechargeable LiFePO4 Battery, Max 10.24kW Power Output, Perfect for Golf Carts

The 48v Vaterer battery is well built but the mounting screws shipped were too short to accommodate our 2021 Club Car DS model cart. This cart has an aluminum angle frame that required the fabrication of a 23" x 19" x 3/4" plywood secured with 1/4" by 3" carriage bolts. The LCD screen works great giving 3 pages of battery health and data. This includes the mV potential of each of the 16 lithium cells. I am going to photograph each of the screens at first charge for future reference. The battery shipped at 52% of charge and recharges rapidly.I think that this battery is a good value for the current price. I downloaded the Vaterer App from the Play Store and it installed rapidly and connected with the battery Bluetooth immediately giving a full battery status.

The Vatrer system was acquired for conversion of a 48-volt 2013 EZGO RXV to lithium. Important considerations were the high capacity of 105 Ah, the high steady current limit of 200 amps and the 400-amp surge current for good acceleration. It may be that high current capacity helps support regenerative braking.The second-most-vital component of the kit was the on-board charger. The battery was half charged on delivery. Prior to installation, the charger was attached; and it provided the advertised 22 amps of current initially. This tapered off to about six amps as the charging process approached completion.The third component of the kit was a display unit. This turned out to be a standalone unit that could be used prior to installation. It required no connection to any of the cart wiring. A button push is needed to turn on the display. The display switches off automatically after a delay when operating the cart; it does not seem to switch off automatically when charging the battery. The display offers touch switches for turning on and off either charging or discharging the battery. The display satisfies all genuine needs; it leaves me, however, with an urge to add a simple, full-time display of just the battery voltage.The final component is a phone app that connects to the battery via blue-tooth. It duplicates many of the capabilities of the physical display. The blue-tooth connection is available even when the cart key is off.The information packet is limited and generic. This means that the owner must devise his own mounting system. I used three pieces of 5/16” plywood to level the original, forward battery slots and then covered that area with a larger piece of ¾” plywood. A pair of metal mounting rails would have worked just as well, given the sturdy brackets on the battery unit.Other than mounting provisions, the system became operable by disconnecting the factory charging port entirely, connecting all other existing battery wires plus the new charger, and making a small wiring change related to releasing the RXV brake. The kit packet did not describe the last item. For convenience of use, I replaced the factory charging port with an AC connector and escutcheon plate.The Vatrer kit came with eight 8-mm bolts, stainless steel, a bit less than an inch long with lock washers but not with nuts. There were two similar, shorter bolts, which I used at the battery terminals. There was a red and a black plastic terminal cover.I’ve played three rounds of golf so far, using less than 20% of the battery capacity each time. Cart acceleration is smooth and strong and easy to modulate. I anticipate good performance, while eliminating most of the maintenance headaches associated with lead-acid batteries.

Finally completed the Vatrer 48v 105Ah lithium battery upgrade in my 2001 Club Car DS Regen2, and it is a great addition. It does require bypassing the Onboard Computer (OBC), which is relatively easy to accomplish in 2 steps: 1-run the negative 10ga wire from the back of the charger receptacle directly to the battery negative. 2- Disconnect the 6-wire connector (behind the seat and under cart) going from the OBC to the big controller box,, and run a jumper between the the blue and the white wire terminals on the controller side of the connector. The easiest way to do this is just cut the 6 wires between the connector and the OBC, leaving about 4-6" of wire. Then connect (i used an insulated crimp butt connector) the stripped bare copper ends of the blue and the white wire together. Just fold back the extra 4 wires so they can't short together and wrap with electrical tape. Both sides of the 6-wire connector should remain connected. That's all it takes to bypass the OBC.The Regen still works, and the yellow battery light will no longer illuminate. If you don't also include the 6-wire connector blue&white jumper as part of the bypass, the yellow battery light will continue to light up frequently, and there is a slight hesitation before the accelerator activates the electric motor. But it still will drive ok, and charge ok with the new charger supplied by Vatrer. It's just that the yellow battery light will keep bothering you. This is true if your OBC is still good.The narrow version of the Vatrer 48v 105Ah lithium battery is 1-2" too tall to easily fit in the Club Car DS due to the two big aluminum I-beams. The wider version will just fit, although i had to add a 1/4" thick strip of molding to raise the rear of the bench seat just enough for clearance. I placed the battery at a slight diagonal front-to-back and up-to-down, and it only sets on top of the passenger side I-beam. This required adding some short 2x4's across the original battery frames to reinforce the floor and keep debris out of the battery area. This also enabled adding some short wood blocks to add support for the Vatrer battery end that wasn't resting on the other I-beam. Although this might seem a little bit odd battery placement, it gave the best top clearance from the seat bottom. It also prevented interference with the accelerator mechanism & its triangle box, plus left maximum room for the charger, a 48v-to-12v reducer, and a fuse block for 12v LED headlights and accessories (radio&power outlet).I will try to include a few pix to provide clarity. They were taken before i added the supplied charger.The new Vatrer battery works great! I mounted the supplied Monitor Screen on the dash by using a 10" long x 1" wood block so the mounting bracket fit easily. Gives handy information on the battery condition in real time, including motor current load. Also gives the temperature! Stays lit while charging. Has automatic timed shut-off, so ok if still lit up after key turned off. Must press button to turn monitor on. Will give battery info even if no key on. Battery has its own complete on-off button! No need to disconnect wires to work on accessories!One hint: The 6-wire connector is called a Deutsch 6-pin connector. I ordered one of these 6-pin Deutsch connectors (included both sides) on Amazon for about $15. Then used one half to make the blue-white wire jumper. This way i only needed to disconnect the original connector, and plug in the jumper one i had made up. So my original wiring remained uncut, as my OBC was still good; if need it or want to sell it later.All in all, certainly worth doing the Vatrer lithium upgrade!Has the 200 amp BMS, which is necessary if upgrading to 48v lithium. While four 12v lithium batteries in series can give 48v, there will be several problems with battery balancing and BMS battery shutdowns due to high current draws on hard accelerations, especially when going uphill.Many thanks for great products and even better Customer Service! Hope you find this information helpful!