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Golf Cart Mighty Mini Lithium Installation - 50AH LiFePO₄ battery
Golf Cart Mighty Mini Lithium Installation - 50AH LiFePO₄ battery
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Say hello to the affordable Mighty Mini Lithium conversion for smaller 48v golf carts. This 50AH grade A cell, metal-encased LiFePO₄ battery boasts an estimated 15-20 mile range on a 2-4 seater cart, which is about equal to the range provided by a new set of lead-acid batteries. This battery is ideal for 2 and 4-seater non-lifted non-performance carts that do not exceed 18 MPH.
Curious if this battery will work in your cart? Call or text us at (904) 373 - 8003
Our friendly technicians come to you and remove and recycle your old batteries and charger, and install your new battery, charger, and gauge. The battery comes with a 5-year manufacturer's warranty and we back up our installation with a 1-year limited installation warranty.
Included with installation:
- Metal Case, Grade A Cells, 48V 50 AH LiFePO₄ battery
- On-board charger and charge port
- Dash-mounted battery meter/monitor (plus bluetooth charge monitoring app)
- All installation
- 5-year manufacturer warranty, 1-year limited installation warranty
Specs:
- Durable and safe metal battery case
- Grade A LiFePO₄ battery cells
- 50 AH nominal capacity
- 100 Amp max continuous. discharge (120A for30 seconds, 400A for 1 second)
- Integrated BMS with overcharge, overdischarge, short-circuit, and thermal monitoring and protection.
Lithium Mini vs Lead Acid
The 50Ah 48V LiFePO₄ battery is comparable in range to a standard set of 48V lead-acid batteries (like Trojan T-105s) — but it’s much better in almost every other way.
Lithium Mini vs traditional Lead-Acid battery banks:
| 48V 50 AH LiFePO₄ | 48v Lead-Acid (6) (8v Trojan T-875) | |
| Cost | $1,595 installed | $1,400 + installation |
| Usable Capacity (kWh) | ~2,350 kWh (est. 90% usable) | ~5.4 kWh raw, but ~2.7 kWh usable (50%) |
| Estimated Range | 15–20 miles* | 15–20 miles* |
| Weight | ~58 lbs | ~380 lbs total (6 batteries) |
| Maintenance | None | Watering, cleaning, terminal checks |
| Lifespan (cycles) | 2,000–3,000+ | 500–1,000 |
| Charging Time | ~2–3 hours | 6–10 hours |
*Note: Range estimates vary up to 20% depending on speed, terrain, elevation change, passenger/cargo weight, tires, cart size, etc. Estimates provided are for a 6-seater cart with two passengers not exceeding 20 mph on flat pavement.
Verdict:
| Feature | Benefit |
| ✅ Cost | About the same |
|
✅ Range |
About the same: (both ~15–20 miles) |
| ✅ Weight Savings |
You shed ~320 lbs — huge for performance, tire wear, and ride quality |
| ✅ Maintainance-Free | Lithium is zero-maintenance, lead-acid is high-maintenance |
| ✅ Performance | Lithium stays strong until empty; lead-acid fades with every mile |
| ✅ Longevity | Lithium lasts 3–5× longer in cycles and years |
|
✅ Charge Time |
less than half the charge time |
Want More Range?
If you are looking for even more range, we've got two great options for you:
- Pairing your new Lithium battery with one of our Solar Range Extenders
- Stepping up to the 100ah Lithium Conversion Service, which offers up to 35 miles of range. The 100AH can also be paired with our Solar Range Extender systems. We install it all.
Service Area
We are currently limiting this installation deal to the following zip codes in the North Florida area:
32081 - Ponte Vedra, FL (Nocatee/St. Johns)
32082 - Ponte Vedra Beach, FL
32092 - Saint Johns including World Golf Village
32095 - Saint Johns area including Palencia area and World Golf Village
32256 - Dearwood, Southside and Bay Meadows area
32258 - Julington Creek and Bartram Springs area
32259 - Saint Johns area including Rivertown, Fruit Cove and Julington Creek
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