Features & Benefits

Battery Management System

Each eRun Lithium battery has a built-in 200 amp Battery Management System (BMS). The BMS provides overcharge protection, over-discharge protection, over-heat protection, and cell balancing. If the BMS detects a short circuit anywhere in the golf cart the battery will automatically shut down. The BMS also provides Bluetooth connectivity for diagnosis and monotoring. Bluetooth also makes it possible for firmware updates. Thanks to the sophistication of the BMS, eRun batteries are 100% safe, fire proof and otherwise goof-proof. The battery cannot be abused.

 

Weight

From about 350 pounds for a set of lead acid batteries to 90 pounds for a single eRun Lithium battery.

 

Increased Power

Your golf cart's highest speed will be about the same as before the conversion. However, after the conversion to Lithium, you will feel the extra power and acceleration.

 

Range

The eRun 48-volt 105aH Lithium battery offers impressive range and performance, allowing you to enjoy longer rides and explore more of the course.
Impressive Range: 40-50 miles on flat pavement:

25% more range than lead-acid:
Say goodbye to the limitations of traditional batteries and experience the freedom of lithium technology.

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Long Life

The factory claims that the battery will deliver more than 95% of its original capacity for 9000 charge cycles. Charging your battery after a round of golf equals about 35% of a charge cycle. Do the math, if you play golf 2.5 times per week that's only 1 charge cycle.

eRun batteries are more than just a product—they’re a commitment to quality and performance. Manufactured under the eRun trademark, each battery is crafted using premium cells and top-tier components, handpicked to ensure the highest standards in the industry.

In the design process I prioritized long life and unmatched reliability, sparing no expense to include the best internal parts available. With eRun, you're not just getting a battery—you’re investing in a product built to last. 
I am happy to pay a little more for the highest reliability possible.

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Lowest Price - Highest Quality

The extended-range 48-volt 105aH lithium battery with charger is $1995 (with charger trade-in). Life expectancy is rated at 9000 charge cycles.  BTW- my competitors charge about $1000 more.
The Ultimate Lithium Battery Solution!

eRun batteries come as a complete package, including professional installation, a new charger, and environmentally responsible disposal of your old batteries.

By selling factory-direct, I cut out distributors and dealers, keeping prices low while maintaining exceptional quality. With minimal overhead, I pass the savings directly to you.

With 30 years of golf cart expertise and over 400 lithium battery installations personally completed, I provide factory-level precision and reliability. In fact, my hands-on experience with lithium battery retrofits is unmatched in the United States.

I seriously doubt if that there is anyone else in Florida that has installed more Lithium batteries than I have.

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7-Year Battery Warranty
The first 2-years are 100%. The remaining 5-years are prorated. Over 450 eRun batteries are under warranty.
So far, no warranty claims. 
The charger and everything else is guaranteed for 2-years.

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Lithium Battery Current vs Lead/Acid Battery Current -

Parameters for Analysis:

Voltage Stability: Lithium Batteries: Provide highly stable voltage output throughout the majority of their discharge cycle. Voltage drop-off happens rapidly near the end of the charge cycle, offering a more predictable power supply. Lead-Acid Batteries: Experience a gradual voltage decline as the battery discharges, leading to less consistent voltage delivery over time.

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Internal Resistance and Ripple

Lithium Batteries: Typically have lower internal resistance, which reduces voltage ripple under load. DC output is smoother and less affected by load fluctuations, ensuring better quality for sensitive electronics. Lead-Acid Batteries: Higher internal resistance compared to lithium batteries. May produce more ripple, especially as the battery discharges or ages.

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Load Handling and Recovery

Lithium Batteries: Can handle rapid load changes and high-current demands with minimal voltage sag. Recovery after high loads is quicker, ensuring stable performance. Lead-Acid Batteries struggle with rapid or high-current demands, leading to more significant voltage sag. Recovery is slower compared to lithium counterparts.

 

Energy Efficiency:

Lithium Batteries: More efficient in energy transfer, resulting in less heat generation and more effective current delivery. Lead-Acid Batteries:Less efficient, with a portion of energy lost to heat, especially during high-load operations.

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Lifespan and Aging Effects:

Lithium Batteries:Maintain consistent DC quality over many charge cycles, with minimal degradation. Lead-Acid Batteries:Performance degrades significantly with age, leading to increased ripple and decreased voltage stability.

Practical Implications for Golf Cart Applications:

Performance Under Load: Lithium batteries are superior for maintaining consistent speed and power, especially on uneven terrain or during acceleration.

 

Compatibility with Sensitive Electronics:

The smoother DC current from lithium batteries is less likely to interfere with modern electronics, such as motor controllers or onboard displays.

Charger and System Compatibility:

Ensure chargers and load systems are optimized for the specific battery chemistry to maximize performance.