ECO-WORTHY 48V 50Ah Metal Case LiFePO4 Battery, Built-in BMS, Replacement of Lead-Acid Battery, Allows Discharging at -4℉ and Charging at 32℉, Stackable, for Solar Off-Grid, Golf Cart, Lawn Mower, RV

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It's a little early, but with some adjustments, it works fine. For my class of Golf Cart it uses dynamic braking. As such, the motor is a brake, and a generator. It's a 1C charging unit so it can only handle 50amps. The excessive power normally goes to the battery, but if the battery is charged, it dumps into a resistor turning into heat. The resistor has a sensor for heat overload and will shut down the controller (which happened to me). After configuring the Navitas (EZGO) , it's fine so far. Lead can take nearly infinite current, but not lithium. The metal case made mounting easy. Picture rotated, but takes much more space than lead. Had to change mount to make shorter.

I bought a 2014 EZGO RXV with Trojan Lead Acid batteries that were end of life and converted it to Lithium Ion with these two 50 Amp Hour batteries. It Rocks! It works great, very zippy, and very easy to convert. Much better performance than Lead Acid as it is lighter with far more power and range. I fabricated a battery box with perforated Aluminum for better air flow and cooling after removing the Lead Acid batteries, cleaning and neutralizing the acid with baking soda and water, fastening it to the existing battery base. Using rubber spacers between the two batteries made it fit perfectly for using the same battery hold down straps and bolts. I added a nylon strap, probably overkill. I added a onboard lithium battery charger Force 15 Amp, and a Shunt battery meter for accurate display of the state of charge and current, fitting into the existing dashboard spot. I used a couple of buss bars to clean up the wiring - I really don’t like hooking up all the wires to the battery terminals. The golf cart works perfectly, very zippy and quick, easy to use and easy to recharge.

Faced with having to replace the lead-acid batteries on my Ryobi 480e a 3rd time, I decided to switch to a LiFePO4 battery system instead. To get better lifetime and to simplify future battery replacements, if ever needed (for example, this battery weighs a bit over 50 lbs, vs. the almost 200 lbs of the batteries it replaced; also, LiFePO4 batteries can handle way more charging cycles than the original SLA models). Although this new pack has less power capacity than the set it replaced, if it lives up to the longer-lifetime spec for LiFePO4 batteries I'll get way more work out of this replacement than the original, so I'm calling this an "upgrade". Note that I had to change the charger (found a good one on Amazon for $130) and battery monitor (found a good one on Amazon for $30) as part of this change, since LiFePO4 batteries output higher voltage than SLA batteries. The overall cost even with these changes was barely over 50% of what a full SLA battery replacement would cost, and the prices of LiFePO4 batteries continues to decline (unlike SLA batteries). So far I've run the mower through 3 charge/usage cycles since this upgrade and love it! It easily gets 1 full hour of mowing on a large lot with lots of steep inclines, with plenty of capacity left over. Note: I do have good electrical skills, but this was not a difficult install. Just be very careful when battery power terminals are exposed.

I bought the 51.2v 50ah battery. Great price, shipped on sked, arrived well packaged. I immediately opened the steel box and the wiring and guts were beautiful. High quality wire, properly terminated with much protection. All components properly secured, wow. All cells were within .01v. Really one of the best batteries I have bought. This will double my storage to 100 AHrs. I am very pleased with this purchase. Great piece of equipment.