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48V 50AH Golf Cart Battery (4850-BT) by Miller Tech

48V 50AH Golf Cart Battery (4850-BT) by Miller Tech - Main image
$929.97 $1499.95 In stock

The 48V 50AH Industrial Grade LiFePO4 Battery is the perfect drop-in replacement for your 48V golf cart, designed to fit exactly where your original 6V GC2 AGM battery sat. Installation is effortless—just swap it in! With only four of these batteries, you’ll enjoy more power and longer run times than the original eight AGM batteries. Plus, you’ll reduce your battery weight by over 60%, boosting your cart’s performance significantly. Featuring a built-in power on/off switch for easy winter storage without a trickle charger, a real-time data meter, and Activated Bluetooth for seamless connection to the MillerTech app, this battery keeps you informed and in control. Upgrade now and ride with confidence!

Specifications:
  • Capacity: 50AH
  • Voltage: 51.2V
  • Size: 11.02" x 7.07" x 10.91"
  • BMS: Yes
  • Chemistry: LFP
  • Efficiency: 99%
  • Memory: None
  • Max Charge/Voltage: 43.2V
  • Peak Discharge: 150A
  • Cut-off Voltage: 33V
  • Max Charge/Discharge Current: 50A
  • Operating Temp: -4°F – 140°F
  • Low Temp Charging Protection: Yes
  • Cell Type: Prismatic
  • Bluetooth: Yes
Features:
  • 10 year Industry Leading Warranty
  • SOC meter included
  • Bluetooth activated to connect directly to our MillerTech App. The MillerTech App gives you in depth, real-time data, taking the guessing game completely away. Power with Confidence!
  • Custom moulded, heavy duty, re-closable battery case. This means if you ever have an issue with your battery no matter is it in year 5 or year 15 we will always have easy access to repair any defective parts. This custom case also has convenient hold down strap grooves moulded into the side corners helping to keep your straps seated securely in place.
  • Large heavy duty battery terminals ensuring there is no heat build up when your application demands maximum power!
  • The Sport Series Marine batteries are all sealed with a thick rubber gasket along the lid connection point. This means they are Marine approved IP65 rated. A completely sealed battery case will cause condensation, so we build them with a marine grade Stainless Steel breather vent. Our vent sits on the top of the case unlike some others where the vent sits down inside catching rain and dirt.

Warranty Information

"A 10 year warranty is not a commitment we take lightly. We believe a warranty is only as good as the company and the people standing behind it. We do realize there is a certain uncertainty about how a company will handle a warranty claim if the need should ever arise. With MillerTech our hope is that the customer will have no doubt in his mind about how we will approach warranty claims. Our company is built on a Golden rule priniciple that we have inherited from many generations of Anabaptist forefathers. We pledge to always put the customer and his needs first." - Millertech

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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Sebastian W. ★★★★★

Running a full 18 holes without the voltage sag I used to get from my old lead-acid batteries, and the weight difference is honestly shocking when you lift it. It dropped straight onto the same tray with zero extra wiring on my end, and the Bluetooth app showed the state of charge right away. Takes

Ryan S. ★★★★★

Dropped it into the exact spot where my old 6V GC2 AGM sat, and the fit was perfect—no cutting or rigging needed. Even the wiring harness matched up cleanly, so the whole swap took under an hour with a friend helping me lift it. It's been smooth sailing on the course ever since.

Ava Y. ★★★★★

First charge took about three hours, and the weight difference from my old lead-acid batteries is massive. I can already tell the LiFePO4 chemistry will last way longer, and the mounting brackets lined up perfectly.