Customer Case Study

Golf Cart Lead-to-Lithium Battery Project

48V / 51.2V LiFePO4 Battery Pack for Replacing Lead-Acid Golf Cart Batteries

RYDBATT developed a custom 48V / 51.2V LiFePO4 battery replacement solution for a golf cart distributor serving rental carts, private golf carts and resort shuttle vehicles. The project helped the customer replace heavy lead-acid battery banks with lighter, longer-life and lower-maintenance lithium battery packs, using RYDBATT's 51.2V 100Ah and 76.8V 100Ah platforms rated 4000+ cycles at 80% depth of discharge, with IP67 sealing on the outdoor range.

This case study shows how RYDBATT evaluated the customer's original lead-acid system, designed a LiFePO4 battery pack with smart BMS protection, verified battery performance through testing and supported the customer from sample approval to batch delivery - with cell sourcing, pack engineering and certification handled inside one 84,000 m² Huizhou base.

The customer was a golf cart and low-speed electric vehicle distributor serving golf courses, resorts, private cart owners and local vehicle service companies, with a fleet-maintenance business alongside its retail channels.

The customer's original products mainly used lead-acid battery banks. During daily operation, their end users often faced several problems:

• Lead-acid batteries were heavy and reduced vehicle efficiency
• Battery runtime became unstable after repeated use
• Voltage dropped obviously under climbing or loaded conditions
• Charging time was long and daily maintenance was inconvenient
• Battery replacement frequency was high
• Rental carts and resort shuttle carts needed more reliable long-cycle batteries
• The customer wanted a lithium upgrade solution to improve product value and reduce after-sales pressure

The customer planned to build a new lithium battery product line for golf cart lead-acid replacement projects and needed a factory that could support voltage matching, casing customization, smart BMS, communication options, charger matching and export-ready packaging.

RYDBATT designed a 48V / 51.2V LiFePO4 battery replacement solution based on the customer's original golf cart system, battery compartment size, controller current, target driving range and usage frequency.

Cell Selection

RYDBATT selected grade-A LiFePO4 prismatic cells suitable for golf cart traction and lead-acid replacement applications. Compared with lead-acid batteries, LiFePO4 cells provide better usable capacity, more stable voltage output, longer cycle life and lower maintenance requirements - our 100Ah packs are specified for 4000+ cycles at 80% depth of discharge.

The cell configuration was designed to support daily driving, repeated charging and outdoor operation for golf carts and resort shuttle vehicles, and cell sorting and matching are carried out in-house before module assembly so that batch consistency is controlled at the cell level rather than checked at the end.

Smart BMS Design

The battery pack used a smart BMS to manage safety and performance during charging and discharging. Protection functions included overcharge protection, over-discharge protection, overcurrent protection, short-circuit protection, temperature monitoring and cell balancing, with state-of-charge accuracy held within ±3% and active balancing current at 100mA.

For fleet or rental cart operation, Bluetooth monitoring and CAN / RS485 communication could be added to help customers check battery status, voltage, current, SOC, temperature and system condition, with cloud monitoring available for larger fleets and battery management firmware updatable over the air.

Durable Battery Housing

RYDBATT designed a strong metal housing according to the customer's battery compartment and installation requirements. The structure was made for golf cart use, including vibration resistance, stable mounting, terminal protection and outdoor working conditions, and the outdoor range is IP67 sealed so the pack holds up to rain, dust and vibration.

The casing size, terminal position, handle design, mounting structure and label information could be customized according to the customer's vehicle model, so the replacement pack fits the existing battery compartment without re-engineering the cart.

Connector and Charger Matching

RYDBATT matched the charging and discharging interface based on the customer's original golf cart system. Connector options included screw-terminal power terminals, aviation plugs or project-based customized connectors.

The charger was matched according to the LiFePO4 battery voltage, capacity, charging current and BMS setting to support safer and more efficient charging - the 51.2V 100Ah platform uses a 58.4V charge profile and the 76.8V 100Ah platform an 87.6V profile.

Project-Based Customization

The final battery solution supported:

• 48V / 51.2V voltage platform
• 50Ah–200Ah standard range, project-based capacity design
• LiFePO4 prismatic cell configuration
• Smart BMS protection
• Bluetooth / CAN / RS485 optional communication, with cloud monitoring for fleets
• Metal case customization
• Terminal and connector customization
• Dedicated LiFePO4 charger matching
• Logo, label and packaging customization

OEM/ODM production for distributors and vehicle brands, with UL, CE and CB available

Before sample approval and mass production, RYDBATT completed a full testing process to verify battery capacity, safety, output stability and final shipment quality, with environmental validation across -40°C to +85°C and mechanical reliability checked through 2,000 vibration cycles and 100cm drop testing.

After sample testing and customer-side vehicle installation, the 48V / 51.2V LiFePO4 golf cart battery pack passed the required performance checks and was approved for batch production, with cell selection, incoming inspection, cell sorting, module assembly, end-of-line test and aging all carried out on our own lines.

The customer used the lithium battery replacement solution to upgrade their golf cart battery product line and provide a better alternative to traditional lead-acid battery banks, drawing on RYDBATT's 51.2V 100Ah and 38.4V 100Ah / 200Ah platforms for the golf and sightseeing-vehicle segments.

✓Samples passed customer testing

✓Battery pack entered batch production

✓Bulk order was delivered successfully

✓After-sales complaints were reduced compared with previous lead-acid replacement supply

✓Customer placed repeat orders after initial shipment

✓Product line expanded from one capacity model to multiple battery configurations

✓The customer started promoting the solution for golf carts, resort shuttles, private carts and low-speed electric vehicles

Golf cart lead-to-lithium replacement is not just a battery swap. A successful upgrade must match the original vehicle system, including voltage, capacity, controller current, charger, installation space, terminal position, communication requirement and daily operating environment.

For distributors and vehicle service companies, LiFePO4 battery packs can help create a stronger product line by offering lighter weight, longer cycle life, lower maintenance, more stable voltage output and smarter battery monitoring - RYDBATT specifies 4000+ cycles at 80% depth of discharge, IP67 sealing on the outdoor range and CAN telemetry with cloud monitoring across the 51.2V 100Ah, 38.4V 100Ah / 200Ah and 76.8V 100Ah platforms.

RYDBATT's project-based design helped the customer build a practical 48V / 51.2V lithium battery replacement solution for golf carts and low-speed electric vehicles.

RYDBATT supports project-based LiFePO4 battery design for golf carts, resort shuttles and low-speed electric vehicles. Share your voltage, capacity, terminal, housing and charger requirements - we will develop a lithium replacement solution matched to your vehicle system, and confirm sample lead time, MOQ and certification scope in quotation.