Your Golf Cart Deserves A Better Battery System

Sunday Spec specializes in Eco Battery lithium conversions and complete powertrain upgrades designed for better range, stronger performance, and easier ownership. Installed locally in Alpharetta, GA and backed by the Sunday Spec Guarantee.

UPGRADE MY CART

WHY UPGRADE TO LITHIUM?

  • GO FARTHER

    Get more range on a single charge with usable power from start to finish.

  • A black battery icon with four horizontal bars on a white and light gray checkered transparency background.
    CHARGE FASTER

    Charge up to 5x faster so that your cart is ready when you are.

  • CLIMB HIGHER

    Enjoy improved hill climbing and smooth acceleration no matter the charge.

  • REDUCE MAINTENANCE

    No adding water, no corrosion, and no messy maintenance.

Lithium batteries replace traditional lead-acid batteries with a lighter, more efficient, maintenance-free power system that improves the way your golf cart drives and performs.

EB Eco Battery 51.2V 160AH lithium battery system kit with a black battery pack, silver charger, black controller, and round digital display on a transparent background.

LITHIUM CONVERSIONS

Lithium is the modern replacement for the traditional lead-acid battery packs found in most golf carts. Instead of carrying hundreds of pounds of batteries that require watering, maintenance, and increasingly lose performance as they discharge, a lithium system gives you a lighter, cleaner, more efficient power source with more consistent voltage and much faster charging. The result is a cart that feels better to drive, is easier to own, and is ready to go more often.

For most cart owners, lithium is the single best place to start when modernizing an electric cart. It can improve range, reduce weight, eliminate routine battery maintenance, and provide a much stronger foundation for future upgrades like larger tires, added seating, higher-output controllers, or AC powertrain conversions. Whether your goal is simply better reliability or a completely different level of performance, we can help determine the right battery size and system for how you actually use your cart.

REQUEST PRICING
A black rack-mount Eco Battery lithium-ion battery system with green and white text, shown on a plain white background.

WHAT TO EXPECT WITH YOUR UPGRADE

We make the conversion as straightforward as possible. We’ll help you choose the right Eco Battery system for your cart, how you use it, and where you want to go with future upgrades. Once your cart is in the shop, we handle the complete installation, wiring, charging setup, system configuration, and final testing before it leaves.

PROFESSIONAL INSTALLATION
Your conversion is installed, configured, and tested by Sunday Spec. We take care of the details so the system works the way it should when you get your cart back.

QUICK TURNAROUND
Most straightforward lithium conversions can be completed quickly once the correct system and components are in hand. More extensive AC powertrain conversions may require additional shop time.

PICKUP + DELIVERY AVAILABLE
Need help getting your cart to us? Pickup and delivery service is available throughout our local North Metro Atlanta service area. Ask us about availability and pricing for your location.

WARRANTY + LOCAL SUPPORT
Your Eco Battery system is backed by the applicable manufacturer warranty, including Eco Battery’s Limited Lifetime Warranty on qualifying batteries. Our installation is also backed by the Eco Battery LIFETIME warranty on components, and Sunday Spec 12-month warranty on workmanship.

SCHEDULE YOUR UPGRADE
A black rack-mount Eco Battery lithium-ion battery system with green and white text, shown on a plain white background.