
Replaces the whole lead-acid bank
48V 65Ah LiFePO4 golf cart battery
51.2V (48V class), 65Ah and 3.33kWh in a stainless-steel IP67 case with built-in Bluetooth and BMS. 200A continuous, 700A peak for up to 2 seconds. 17.20 × 14.33 × 7.48 in, 66 lb.
Big Box Series
Capacity: 65Ah
Configuration: Club Car Precedent
Dust-tight and protected against temporary immersion to 1 m for 30 minutes.
Over 9 years at one full cycle a day. Rated at the depth of discharge, charge rate and temperature stated on the datasheet, to its end-of-life capacity.
Charge, voltage and temperature on your phone in the Epoch Li-Ion app.
Guards against overcharge, over-discharge, overcurrent and short circuit.
Lithium iron phosphate has a far lower thermal-runaway risk than other lithium chemistries. The BMS adds over-temperature and low-temperature charge protection.
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Replaces the whole lead-acid bank
51.2V (48V class), 65Ah and 3.33kWh in a stainless-steel IP67 case with built-in Bluetooth and BMS. 200A continuous, 700A peak for up to 2 seconds. 17.20 × 14.33 × 7.48 in, 66 lb.

Onboard LiFePO4 charger
Charges the 65Ah battery with a LiFePO4 charge profile, from empty in about 6.5 hours. It is powered through the cart's charge port, so you plug in from outside the cart.

Included with the charger
Plugs into the cart's charge port and a standard 120V AC outlet, so you can charge from outside the cart.

Dash mount
Shows state of charge from 0 to 100%, battery voltage, current and temperature at a glance, and shows warnings when the BMS raises an alarm.

With wiring harness
Turn the battery on and off from the dash. The 6 ft harness links the battery's communication port to the switch, gauge and charger.
Stretched cart? Get the 13 ft harness
For 12V accessories
Fused, with a key-on (enable) wire for the cart's key switch. Runs 12V headlights, light bars, radios and USB outlets from the 48V battery: input 40–90V, regulated 13.5V output, 25A maximum load.

Matched to your cart
Replaces the cart's factory lead-acid charging receptacle and feeds AC power to the onboard lithium charger. Replacing the original receptacle is required for safety.

Matched to your cart
Secure the battery in the compartment. Choose Club Car Precedent, EZGO RXV, EZGO TXT, Yamaha 2007–2010, Yamaha 2011+ or Other when you order.

Free for iOS and Android
Connects over Bluetooth to show state of charge, voltage, current, temperature, battery health and warnings on your phone, and installs firmware updates over the air.


























































Complete lithium golf cart conversion
The Epoch 48V 65Ah LiMAX golf cart battery kit (Big Box Series, model BB5165A-Kit-1) is a complete 48V lithium golf cart upgrade for Club Car Precedent, EZGO RXV and TXT, Yamaha, and other compatible 48V carts. Replace a heavy lead-acid bank with one 66-lb, 3.33kWh LiFePO4 battery. The kit includes a 48V 10A onboard lithium charger with a 10 ft extension cord, a digital Bluetooth battery gauge, a 6 ft remote on/off switch with wiring harness, a fused 12V converter, a cart-specific charge port plug and mounting brackets, with Epoch Li-Ion app monitoring and an IP67 enclosure.
Upgrade your 48V golf cart without hunting for separate parts.
The Big Box Series LiMAX kit is designed to take the headache out of replacing 48V lead-acid golf cart batteries. Instead of managing water levels, acid corrosion, voltage sag, and a heavy multi-battery bank, this complete 48V lithium golf cart upgrade consolidates your power into one clean LiFePO4 battery system with the core conversion components included.
Choose the proper configuration for popular 48V cart platforms, including Club Car Precedent, EZGO RXV, EZGO TXT, Yamaha, and other compatible carts. Always confirm tray fitment, OBC requirements, cable clearance, controller draw, and mounting needs before installation.
This 48V golf cart battery with charger includes the battery, a 48V 10A onboard lithium charger with a 10 ft extension cord, a digital Bluetooth battery gauge, a 6 ft remote on/off switch with wiring harness, a fused 12V converter, a cart-specific charge port plug and cart-specific mounting brackets, helping reduce hidden add-ons and extra hardware runs. The main fuse or DC-rated breaker for the battery cables is not part of the kit; install one as close as practical to the battery positive terminal.
Maintenance-free compared with lead-acid: no water refills, no acid service, and no equalization routines. Routine inspections of the case, terminals, cables, and mounting keep it operating safely.
Less weight, stronger response, and lithium power that stays consistent.
A traditional 48V lead-acid golf cart bank can weigh hundreds of pounds. At just 66 lbs, the LiMAX lithium battery can dramatically reduce cart weight, improving acceleration feel, hill response, braking, and suspension load.
With 65Ah of 51.2V lithium capacity, this kit is built for neighborhood cruising, golf course use, campgrounds, resorts, and utility driving. Range varies by setup, but stock and mildly upgraded carts may see approximately 25–35 miles per charge in normal conditions.
LiFePO4 batteries maintain a steadier voltage than lead-acid batteries, helping your cart feel more consistent as the battery discharges instead of sagging early on hills or under load.
Battery data, dashboard visibility, and waterproof protection.
The included digital dash gauge shows state of charge, voltage, current, temperature, and warnings at a glance, and the free Epoch Li-Ion app for iOS and Android adds cycle data and battery health on your phone. Firmware updates install over the air through the app.
Golf carts get washed, splashed, and driven in changing weather. The IP67-rated enclosure is dust-tight and protected against temporary immersion to 1 m for 30 minutes; it is not rated for water jets or pressure washing.
The LiMAX battery uses safe lithium iron phosphate chemistry with long cycle life and Epoch’s 11-year limited manufacturer warranty (register within 90 days of purchase for full coverage), making it a long-term upgrade over routine lead-acid replacement.
EZGO lithium conversion, Club Car 48V lithium battery upgrades, Yamaha 48V lithium battery projects, and more.
The kit’s parts and the battery’s ratings for a cleaner 48V lithium golf cart upgrade.
Key technical details for the Epoch 48V 65Ah LiMAX golf cart battery kit.
| General | |
|---|---|
| Brand | Epoch Batteries |
| Product | 48V 65Ah Golf Cart Battery Complete Kit - Lithium (LiFePO4) |
| Model / SKU | BB5165A-Kit-1 (confirm the model on the battery label). Kit SKUs by cart configuration: BB5165A-Kit-1 Club Car Precedent, BB5165A-Kit-2 EZGO RXV, BB5165A-Kit-3 EZGO TXT, BB5165A-Kit-4 Yamaha 2007–2010, BB5165A-Kit-5 Other, BB5165A-Kit-6 Yamaha 2011+ |
| Series | Big Box Series / Golf Cart Complete Kit |
| Battery type | LiMAX LiFePO4 golf cart battery |
| System voltage | 48V system / 51.2V nominal |
| Chemistry | LiFePO4 / Lithium iron phosphate |
| Cell configuration | 16S1P (16 prismatic LiFePO4 cells in series) |
| Bluetooth | Yes — Epoch Li-Ion app (iOS and Android) |
| Dashboard gauge | Included — digital Bluetooth battery gauge (dash mount) |
| Firmware updates | Over-the-air firmware updates through the Epoch Li-Ion app |
| Cycle life | 3,500+ cycles |
| Warranty | 11-year limited manufacturer warranty; register within 90 days of purchase for full coverage |
| Kit contents and cart fitment | |
| Included battery | 48V 65Ah LiMAX LiFePO4 golf cart battery |
| Included charger | 48V 10A onboard lithium charger with a 10 ft heavy-duty extension cord |
| Included accessories | Digital Bluetooth battery gauge (dash mount), 6 ft remote on/off power switch with wiring harness, fused 48V to 12V step-down converter (25A) with key-on wire, cart-specific charge port plug, and cart-specific mounting brackets |
| 12V converter | Fused, with a key-on (enable) wire; input 40–90V; regulated 13.5V output; 25A maximum load |
| Not included | A main fuse or DC-rated circuit breaker for the battery cables; install one as close as practical to the battery positive terminal |
| Configuration options | Club Car Precedent, EZGO RXV, EZGO TXT, Yamaha 2007–2010, Yamaha 2011+, and Other (ICON and other compatible 48V carts) |
| Installation type | Complete lithium conversion kit for compatible 48V carts; not a drop-in replacement for every installation. Install by an authorized mechanic or technician |
| Voltage and capacity | |
| Nominal voltage | 51.2V (48V class) |
| Nominal capacity | 65Ah |
| Energy stored | 3.33kWh (3,328Wh) nominal |
| Maximum charge voltage | 58.4V |
| Operating voltage range | 40V – 58.4V |
| Power-down state | Any cell below 2.2V, or pack voltage about 38V |
| Self-discharge | 3% per month |
| Current ratings | |
| Max continuous discharge | 200A |
| Peak discharge | 300A for up to 15 seconds; 700A for up to 2 seconds |
| Max continuous charge current | 100A |
| Peak charge / regenerative current | 300A for up to 15 seconds (regenerative braking) |
| C-rates | 200A discharge = 3.08C; 100A charge = 1.54C (1C = 65A) |
| Series / parallel | Parallel only: up to 2 batteries (130Ah, 6.66kWh); series connection is not supported |
| Temperature | |
| Charge temperature range | 0°C to 55°C / 32°F to 131°F; no internal heater (the BMS blocks charging outside this range) |
| Discharge temperature range | -10°C to 55°C / 14°F to 131°F |
| Storage temperature | Recommended 0°C to 35°C / 32°F to 95°F, up to 12 months; -20°C to 55°C / -4°F to 131°F for up to 1 month |
| Dimensions and enclosure | |
| Length | 17.20 in (437 mm) |
| Width | 14.33 in (364 mm) |
| Height | 7.48 in (190 mm) |
| Overall dimensions | 17.20 in L × 14.33 in W × 7.48 in H (437 × 364 × 190 mm) |
| Weight | 66 lbs (30 kg) |
| Case material | Stainless steel |
| Controls and ports | On/off switch, communication port, vent, positive and negative terminals |
| IP rating | IP67 per IEC 60529: dust-tight and protected against temporary immersion (1 m, 30 min); not rated for water jets or pressure washing |
| Charging guidance | |
| Recommended charger | Use the included 48V 10A lithium charger or a compatible 48V LiFePO4 charger programmed within Epoch’s voltage and current limits. |
| AC connection | 10 ft heavy-duty extension cord (included) from the cart’s charge port to a standard 120V AC outlet |
| Charge time | About 6.5 hours from empty with the included charger |
| Maximum charge voltage | 58.4V |
| Charger restart | Below about 95% state of charge, if the charger stays connected |
| Lead-acid charger note | Do not use a lead-acid charger unless it can be confirmed and programmed for LiFePO4 charging without equalization/desulfation modes. |
| BMS protection and compliance | |
| BMS protection | Over-voltage, under-voltage, over-current, and short-circuit protection; charge, discharge, ambient, and MOSFET temperature protection; integrated cell balancing with a cell-unbalance alarm |
| Low-charge warning | Buzzer and flashing gauge warning below 20% state of charge |
| Compliance | IP67 per IEC 60529 |
Built for rain, washdowns, dust, and real cart use.
The IP67-rated enclosure is dust-tight and protected against temporary immersion in water up to 1 meter for 30 minutes. It is well-suited for wet grass, rain, puddle splash, and regular cart washdowns, but it is not rated for water jets or pressure washing: do not pressure-wash the battery or its terminals, do not install it where it will remain submerged or where standing water collects, and inspect it after any immersion.
More usable power, less maintenance, and a lighter cart.
LiFePO4 golf cart batteries deliver a flatter voltage curve, faster recovery, reduced maintenance, and major weight savings compared with lead-acid battery banks. For many EZGO, Club Car, Yamaha, and other compatible 48V carts, the Epoch LiMAX kit is a simpler path to cleaner electric power.
Common questions about fitment, range, charging, installation, and monitoring.
The Epoch 48V 65Ah LiMAX kit is configured for Club Car Precedent, EZGO RXV, EZGO TXT, Yamaha 2007–2010, Yamaha 2011+, and Other (ICON and other compatible 48V carts). It is not a drop-in replacement for every installation: confirm that the battery bay fits the 17.20 × 14.33 × 7.48 in case, and check terminal clearance, cable routing, charge-port wiring, the On-Board Computer (OBC) on Club Car Precedent carts, and that your controller’s current demand fits the battery ratings before installation.
No. This is a complete kit and includes a 48V 10A onboard lithium charger with a 10 ft heavy-duty extension cord, along with a digital battery gauge, a remote on/off switch with wiring harness, a 12V converter, a cart-specific charge port plug, and mounting brackets. Do not use an old lead-acid charger unless it is confirmed and programmed for LiFePO4 charging, with equalization and desulfation modes disabled.
About 6.5 hours from empty with the included 48V 10A onboard lithium charger. The charger is powered through the cart’s charge port: the kit’s cart-specific charge port plug replaces the factory lead-acid receptacle (replacing it is required for safety), and the included 10 ft heavy-duty extension cord connects the charge port to a standard 120V outlet. If the charger stays connected, it restarts charging when the state of charge drops below about 95%.
No. This battery has no internal heater, and the BMS blocks charging outside 0°C to 55°C (32°F to 131°F), so let a cold battery warm above freezing before charging. It can discharge from -10°C to 55°C (14°F to 131°F).
Range depends on cart weight, passengers, terrain, tire size, controller settings, and driving style. Epoch estimates approximately 25 to 35 miles per charge for stock or mildly upgraded carts under normal conditions. For more range, two matched batteries can be connected in parallel for a 48V, 130Ah system.
In many carts, switching from a heavy lead-acid bank to a lighter lithium battery improves acceleration, hill-climbing response, handling, and braking feel. Top speed still depends on your motor, controller, tires, programming, and local cart settings, but the weight savings and flat LiFePO4 voltage curve help the cart feel stronger throughout the discharge cycle.
Some older Club Car models that use an On-Board Computer to manage the original lead-acid charger may require an OBC bypass when converting to lithium. This is a common part of many Club Car lithium conversions and allows the included Epoch lithium charger to charge the battery directly. Confirm the correct procedure for your exact model year before installation.
The 65Ah LiMAX kit is a strong choice for stock carts and mild upgrades: the battery is rated for 200A maximum continuous discharge, with 300A for up to 15 seconds and 700A for up to 2 seconds for acceleration. Heavily modified carts with high-amp aftermarket controllers, aggressive motor upgrades, oversized tires, or steep hill use may require a larger-capacity LiMAX kit with higher sustained output headroom.
The kit includes a digital Bluetooth battery gauge for the dash, which shows state of charge from 0 to 100%, voltage, current, temperature, and warnings. The free Epoch Li-Ion app for iOS and Android shows the same readings plus cycle data and battery health on your phone.
Yes, in parallel only. Epoch lists this model for up to two batteries in parallel, which create a 48V 130Ah system for extended range. Use matched BB5165A-Kit-1 batteries of similar age, condition, and firmware, charged to the same state of charge, and install them according to Epoch’s configuration guidance. Do not connect them in series.
As Featured In
Golf Car Options Magazine


Every mark below is a standard this battery has been tested against or a listing it carries. Here is what each one covers, in plain English.
Ingress protection
Dust-tight, and protected against temporary immersion in up to 1 m of water for 30 minutes. Under IEC 60529 the first digit rates solids and the second rates water.
IEC 60529, Degrees of protection provided by enclosures
48v 65ah
The customer love the battery. And thought the installation, very professional.
Just fantastic
My cart weighs 350 lbs less and it shows. Amazing acceleration and the power is instant. I do NOT regret the change from acid/lead battery. And the fact that it is an American company makes it even better. America first
Box battery, complete kit
This my second LiFePo full kit box battery from EPOCH. This one was installed on a friends cart, a 2003 CC DS. Her cart is stock everything except the motor, she had upgraded to the Admiral motor a few years ago. This one was even easier to install than the one I purchased for my Precedent. It literally took me longer to remove and clean up the cart…