Big Box Series
Dustproof and submersible to 1 m for 30 minutes.
Over 9 years at one full cycle a day.
Charge, voltage and temperature on your phone in the Epoch Li-Ion app.
Guards against overcharge, over-discharge, overcurrent and short circuit.
Stable under extreme conditions. 11-year warranty.
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Complete 72V lithium golf cart conversion kit
Upgrade your 72V cart with a high-output LiFePO4 power system engineered for stronger acceleration, steadier voltage, and extended range.
The Epoch 72V 105Ah lithium golf cart battery kit delivers 7.392kWh of clean, high-efficiency energy in one complete conversion package. Built for custom carts and performance-minded drivers, this 72V golf cart conversion kit replaces bulky lead-acid battery banks with a lightweight 72V lithium performance upgrade that includes Bluetooth monitoring, a 72V 15A charger, dashboard battery gauge, 12V converter, and IP67-rated protection.
A lightweight 72V battery upgrade built to transform cart performance.
Heavy lead-acid banks make 72V carts feel sluggish, especially under hard acceleration, hill climbs, or passenger load. Replacing six bulky lead-acid batteries with one lithium golf cart conversion kit can remove significant weight from the chassis, improving power-to-weight ratio, handling feel, braking load, and overall drivability.
Because LiFePO4 delivers a flatter voltage curve than lead-acid, the cart receives more consistent power as the battery discharges. That means less voltage sag, stronger pull under load, and a more consistent driving experience from the beginning of the ride to the end.
The LiFePO4 flat voltage curve helps maintain stronger power delivery compared with lead-acid batteries that steadily lose voltage as they drain. It is a major advantage for drivers who want reliable torque, speed consistency, and predictable performance.
This 72V golf cart conversion kit includes the battery, 72V 15A lithium charger, dashboard battery gauge, and 12V converter, giving DIY builders the core components needed for a cleaner lithium conversion.
Built-in Bluetooth connects to the Epoch app so performance users can check State of Charge, voltage, current flow, temperature, and battery status directly from a smartphone.
High current output, complete kit hardware, and sealed durability.
Designed for high-output 72V lithium golf cart conversions.
Clean technical reference for the Epoch 72V 105Ah lithium golf cart battery kit.
| General | |
|---|---|
| Brand | Epoch Batteries |
| Model / SKU | BB72105A-Kit |
| Series | Big Box Series / golf cart complete kit |
| Battery type | 72V-class LiFePO4 golf cart conversion kit |
| Included accessories | 72V 15A lithium charger, battery gauge, and 12V converter |
| Chemistry | LiFePO4 / Lithium iron phosphate |
| Cell type | Prismatic LiFePO4 |
| Cell configuration | 1P22S |
| Bluetooth | Yes — iOS and Android app monitoring |
| Software updates | Yes — over-the-air firmware updates |
| Self-heating | No |
| Cycle life | 3,500+ cycles |
| Warranty | 11-year manufacturer warranty |
| Voltage and capacity | |
| Nominal voltage | 70.4V (72V class) |
| Nominal capacity | 105Ah |
| Energy stored | 7.392kWh |
| Operating voltage range | 55.0V – 79.2V |
| Maximum charge voltage | 79.2V |
| Discharge and charge ratings | |
| Maximum continuous discharge | 250A |
| Peak discharge | 500A @ 15 seconds; 1,000A @ 2 seconds |
| Maximum continuous charge | 100A |
| Peak charge / regen | 500A @ 15 seconds |
| Series and parallel configuration | |
| Parallel connections | Max 2 batteries in parallel |
| Maximum expanded capacity | 210Ah / 14.784kWh |
| Series connections | Not for series expansion beyond the built-in 72V-class system |
| Temperature | |
| Charge temperature range | 0°C to 55°C / 32°F to 131°F |
| Discharge temperature range | -20°C to 60°C / -4°F to 140°F |
| Recommended storage temperature | 0°C to 35°C / 32°F to 95°F |
| Dimensions and mechanical | |
| Dimensions | 21.7" L × 13.4" W × 9.9" H |
| Weight | 132 lbs |
| Case material | Steel |
| Enclosure protection | IP67 |
| Terminal type | M8 female |
| Recommended charging settings | |
| Bulk / absorption voltage | 78.1V – 79.2V |
| Absorption end condition | Stop when charge current is ≤ C/20 or 15 minutes max |
| Float voltage | Disabled preferred, or 73.3V – 74.8V |
| Re-bulk voltage | 72.6V |
| Temperature compensation | 0mV/°C / none |
| Equalization | Disabled |
| Battery charge temperature range | 0°C to 55°C / 32°F to 131°F |
| BMS high-voltage cutoff | 79.2V |
| SoC recalibration voltage | 79.2V |
| Compliance and shipping | |
| Certifications / compliance | UL 1642 cells, UL 9540A cells, IEC 62619:2022, CE, RoHS |
| Shipping classification | UN 38.3 |
Fully dustproof and protected for rugged cart environments.
The IP67 enclosure is dust-tight and protected against temporary immersion up to 1 meter for 30 minutes. That gives the battery strong protection against wet golf cart compartments, rain, washdown exposure, and demanding outdoor environments, while proper cable routing and secure mounting are still required.
Common questions about speed, range, charging, Bluetooth, and lithium conversion compatibility.
Upgrading to this 72V lithium golf cart battery can noticeably improve acceleration, hill-climbing feel, and power consistency by removing significant lead-acid weight and maintaining a flatter LiFePO4 voltage curve as the battery discharges. Actual top speed depends on your cart, controller, motor, tire size, programming, terrain, and total load.
Yes, this kit is built for high-performance 72V golf cart applications with a 250A maximum continuous discharge rating, 500A output for 15 seconds, and 1,000A peak output for 2 seconds. Always confirm your controller settings, motor demand, cable sizing, and fuse protection stay within Epoch's published BMS limits.
Range varies based on cart weight, passenger load, tire size, terrain, speed, controller tune, and driving habits. In many properly configured 72V carts, a 105Ah lithium battery can provide strong all-day range, and performance-focused users often target the 40 to 50 mile range under favorable conditions.
No. This complete 72V golf cart conversion kit includes a dedicated 72V 15A LiFePO4 charger, along with a battery gauge and 12V converter. Stop using lead-acid chargers unless they are specifically approved and programmed for this battery's LiFePO4 charging requirements.
Yes. Epoch lists this model for a maximum of 2 batteries in parallel. Two matched batteries in parallel create a 72V-class bank with 210Ah of capacity and 14.784kWh of stored energy. Do not wire these batteries in series.
Yes. The battery includes Bluetooth monitoring for iOS and Android through the Epoch app, allowing you to check state of charge, voltage, current flow, temperature, and battery status from your smartphone.
Yes. The battery is rated IP67, meaning it is sealed against dust and protected against temporary immersion in water up to 1 meter for 30 minutes. Even with IP67 protection, install it securely and avoid cable routing or mounting locations where water can pool around terminals or connectors.
No. Do not mix lithium and lead-acid batteries in the same golf cart battery bank. Their voltage curves, charging requirements, and internal resistance are different. Replace the lead-acid bank completely with the lithium kit and use compatible charging equipment.
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