Eco Battery 48v 105ah Thru Hole Installation

August 19, 2025 Martin Davis

4 min read

Wondering if the Eco Battery 48V 105Ah Thru Hole Bundle is worth the upgrade for your golf cart? In this video, we unbox it, walk you through exactly what’s inside, and show you how Extreme Kartz handles the installation. From the lightweight design to the performance boost, this battery kit promises to make a real difference. But is it the right fit for your ride? Join us as we dive into all the details, and see how easy it is to install!

Video at a glance

Eco Battery 48V 105Ah Thru Hole Bundle – Unboxed & Installed
The video shows what’s in the kit, then demonstrates the installation process. It’s organized with quick chapters like “What’s included” and “How to install.”

What’s in the box (as shown/mentioned)

48V (51.2V) 105Ah Eco Battery “Thru-Hole” LiFePO₄ pack
51V lithium charger + locking charge port/plug
Digital SOC (LCD/CAN) meter and harness
Hardware/mounting for thru-hole battery
(Some bundles include a 12V DC-DC converter for accessories; the video notes this can be optional depending on bundle.)

Step-by-step installation guide (based on the video + Eco Battery Quickstart)

Safety first

Wear eye protection and insulated gloves; use insulated tools. If you’re not trained to work with EV/lithium systems, get a pro to install.

1) Prep & document

Turn key OFF; if your cart has a Tow/Run switch, set to TOW.
Take photos of existing batteries, cables, and accessory wiring for reference.
Label the main positive/negative pack cables and any 12V accessory leads.

2) Remove the old pack

Remove hold-downs, maintenance systems, and all interconnect cables.
Lift out the old batteries and clean the tray. (Team lift—these are heavy.)

3) Mount the Eco Battery

Make sure the Eco Battery is off (press the power button until green light comes on, then press again to turn off).
Set the 48V 105Ah thru-hole battery in place and secure it using the provided thru-hole hardware for your cart model.

4) Mount the charger

Mount the 51V charger in a spot protected from direct water spray with ≥6 in of open space for the fan.
Install the locking charge port in the body panel location that suits your cart and route the charger lead to it.

5) (If included) Install the 12V DC-DC converter

Mount the converter (40–90V input → 12V output).
Wire per diagram: red = 12V+, black = 12V− to your 12V fuse block; connect the orange “enable” to a switched B+ (key-on) or to battery + for constant 12V.

6) Make the main battery connections

Stack ring terminals largest-draw first (controller), then lower-draw (charger, converter) on the battery studs.
Connect all POSITIVE cables to the POSITIVE terminal and all NEGATIVE cables to the NEGATIVE terminal.
Double-check polarity before tightening to manufacturer torque spec.

7) Install and connect the LCD/CAN SOC meter

Pick a location with enough depth behind the panel; cut a 2-1/16 in (52 mm) hole (or use a bracket).
Plug the LCD harness into the battery (align the tab), route to the meter, then connect both white plugs to the back.
If your charger uses CAN, plug its CAN lead into one of the meter’s CAN pigtails.

8) Final checks & power-on

Verify every connection (no loose lugs, correct polarity, secure mounts).
Power on the battery (press and release the button). Steady green = on; no green = error—contact your dealer/Eco Battery.

9) First charge & calibration

Fully charge the battery before extended driving. The LCD meter self-calibrates to 100% after the first full charge.
The power button must be on to charge. For storage >14 days, turn the battery off and unplug AC from the charger.

10) Test

Key to RUN/ON; confirm the cart drives and 12V accessories operate. If all good, button up the cart and enjoy.

Tools & tips

Tools: basic socket set, insulated nut driver, torque wrench, crimpers/heat-shrink, 2-1/16" hole saw.
Pro tips: take clear photos before removal; keep accessory grounds tidy on a fused 12V block; never pressure-wash the battery; charge daily for longest life. Shopify