GEM e4 (2005-Present) (72V) Fleet Lithium Conversion Kit
Features
Features
Backed by a 10 Year Warranty
Backed by a 10 Year Warranty
GEM e4 (2005-Present) (72V) Fleet Lithium Conversion Kit - 76.8V 105Ah is backordered and will ship as soon as it is back in stock.
Upgrade Your GEM e4 to Fleet Lithium
Replace the factory lead-acid batteries in your GEM e4 LSV (2005–Present) with a high-performance 76.8V LiFePO4 kit from Fleet Lithium. Complete conversion kit — battery, charger, bracket, cables, and all hardware included.
Choose Your Capacity
| Capacity | Range | Best For |
|---|---|---|
| 76.8V 105Ah | Up to 75 mi | Daily driving |
| 76.8V 168Ah | Up to 95 mi | Max range, all-day use |
What's Included
- 76.8V NexGen Fleet Lithium LiFePO4 Battery (selected capacity)
- CH8713 — 87.6V 13A LiFePO4 Smart Charger
- BR3374 — GEM e4 Bracket Kit
- AC0219 — AC Power Connector
- CB0917 — Cable Set (35.4")
- Digital State-of-Charge Gauge
- All mounting hardware
Key Specs
- 300A NexGen BMS with 800A peak surge
- Patent-pending fire suppression system
- Built-in cold-weather heater — activates automatically below 32°F (standard, not an add-on)
- Bluetooth monitoring — voltage, temp, cycle count from your phone
- 10-year warranty — designed and assembled in the USA
Fitment Guide
| OEM | Model | Years | Factory Voltage |
|---|---|---|---|
| GEM | e4 | 2005–Present | 72V |
For 1999–2004 GEM LSV models, see our separate GEM LSV listing.
Controller Compatibility
The GEM e4 uses a factory 72V controller. The 76.8V Fleet Lithium pack is designed to work with the factory system. No controller reprogramming is typically required for standard installations.
Will this fit my GEM e4?
Yes. The BR3374 bracket kit ensures a factory-fit installation. No modifications required.
Do I need to reprogram my controller?
No. The factory 72V controller is compatible with the 76.8V lithium pack out of the box.
How long does installation take?
30–60 minutes with basic hand tools.
Does it work in cold weather?
Yes. Built-in heater activates automatically below 32°F — standard on every pack.
*Range estimates are maximums under ideal conditions (flat terrain, single rider, 12–15 mph, 70°F). Actual range varies with terrain, weight, speed, and temperature.
Let customers speak for us
Install went quick and easy.
The kit included everything I needed.
And my cart has more power and holds a charge for days instead of hours
This is a very high quality battery easy to install, so happy to be rid of the nasty corrosive lead cell batteries. Hopefully I’ll get many years of service out this battery and I’m sure I will, just the getting rid of the lead cell maintenance is a huge win. The cost of corroded cables, hold down brackets and adding water was a pain in the butt.
Nice and easy install, they work great, much longer range and way better power. Best of all, NO MAINTENANCE
Tried cheaper lithium setups first and they couldn’t handle the amp draw. This one has been solid with no issues.
Absolutely Incredible Range. We replaced our 4 year old Trojan batteries this spring with the 210 AH dual battery kit and we are blown away! We use the buggy to secure the perimeter of a 300 acre lot in South Carolina. We typically put about 200 miles per week on this unit. We have been testing this kit for about a month now and we are getting every bit of 80 miles per charge. Its absolutely unbelievable. Thank you Fleet Lithium!
This screen was so easy to install. We installed our fleet lithium battery about 2 years ago, the screen just came out in April, it took 10 minutes to install and everything works perfectly. Thank you Fleet lithium!
After a few months of use I can confidently say this was worth it. No maintenance, great range, and consistent power every time. Huge upgrade from stock.
I should have just bought this first instead of wasting money on others.
The range has doubled compared to my old setup. Installation was straightforward and the instructions were clear. I can now play multiple rounds without recharging.
Real world use, not just cruising. This battery actually performs.
I love the Bluetooth monitoring features. No more voltage sag even on steep hills. It's a night and day difference from lead-acid batteries.
Installation was straightforward and the instructions were clear. No more voltage sag even on steep hills. The battery runs cooler and is much lighter than my old one.
This kit exceeded my expectations. The Ranger runs smoother, quieter, and more efficiently. Would absolutely buy again.
No more voltage sag even on steep hills. Installation was straightforward and the instructions were clear. The battery charges quickly and holds power for a long time.
The battery runs cooler and is much lighter than my old one. No more voltage sag even on steep hills. The range has doubled compared to my old setup.
