Golf Cart Range Extender
Revolutionizing Golf Cart Range and Sustainability
Unlimited Range Extension – Never Plug-In Your Golf Cart Again
The Problem
Traditional lithium batteries capture only 50% to 70% of the power generated from solar cells. Golf cart fleets incur substantial costs from nightly charging, amounting to tens of thousands of dollars daily.
The Solution
Our innovative approach leverages the superior efficiency of graphene batteries and solar panels to enable golf cart auto-charging. This system achieves an 80% to 100% solar charge rate daily, doubling the carts’ range on the course. The potential for unlimited range extension means users will never need to plug in their golf carts again.
Graphene Benefits
Graphene batteries are significantly more efficient, capturing 95% of the power generated from solar cells. This efficiency is further enhanced as graphene acts like a capacitor, absorbing an additional 15% of the sun’s energy.
Mint Energy 14S Battery Charging and Discharging
The Mint Energy batteries behave almost exactly like a Lithium-Ion (NMC Chemistry) cell. The batteries can typically be charged
on a Lithium-Ion compatible charger without change. However, we list our preferred charge and discharge settings below.
Charging
Charge at Constant Current of up to 225 Amps at a Voltage of 58.5VDC (Bulk Charge Phase). When Voltage at battery reaches 58.5, switch to Constant Voltage mode and continue charging (Absorption Charge Phase). When the current drops to 10% of the original Constant Current rate, stop charging. Generally, a Float Charge Phase is not required, but if the charger requires one, then program the voltage for approximately 54VDC.
Note: The BMS is set to shutoff charging internally if the battery voltage reaches 58.8VDC, so the charger should operate at a voltage a few tenths of a volt lower.
Discharging
Discharge at a rate of up to 500 Amps. Discharging should cutoff at a battery voltage of 39.2VDC.
Note: The BMS is set to shutoff discharging internally if the battery voltage reaches 37.8VDC, so the charger should operate at a voltage a few tenths of a volt higher.
The image below shows a Top-off Charge to 4.2VDC/10A Discharge to 2.7VDC/10A Charge to 4.2VDC and cutoff at 1A. This is a single cell test with voltages and currents appropriate for a single cell. The Mint Energy battery has 14 cells in series, making the voltage 14 times higher and either 8 or 12 cells in parallel, making the current capability 8 or 12 times higher.
Click to Download Our 2.1 kWh Golf Cart Battery with Range Extender Data Sheet
Click to Download Our 4.2 kWh Golf Cart Battery with Range Extender Data Sheet
The Opportunity
We propose leasing golf carts at a cost equivalent to their electricity consumption. Mint Energy would retain ownership of the carts and charge for electricity usage. This model
provides fleets with a 10-year lease term, offering a 300% return on investment. The technology for this system is already in place and proven effective.
The Financial Requirement
We are seeking an investment of $425,000,000 to bring this groundbreaking technology to market. The funds will be allocated as follows:
1. Production & Live Testing Phase: $100,000,000 USD
2. Inventory Build-Up and Three Years of Operations: USD 50,000,000
3. Financing Fees for Golf Cart Leases: $100,000,000
4. Additional capital requirements and contingencies.
This initiative represents a monumental leap forward in sustainable energy utilization and cost-efficiency for golf cart fleets. We are enthusiastic about the potential impact and would love to discuss how we can collaborate to bring this vision to fruition.
Ready to start your project?
Contact us to start with a demo unit for your needs at [email protected]