12V 55AH Sport Series Lithium Battery w/ Bluetooth (1255-BT)
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12V 55AH Sport Series Lithium Battery w/ Bluetooth (1255-BT)

(3 Reviews)
$399.00

Free shipping

Applications For This Battery

Built in low-temp charging protection!

Items you may need with this battery:

Download ManualDownload Sports Series WarrantyApple StoreGoogle Playstore
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Capacity
55AH		 Voltage
12.8V		 Weight
17.1 lbs		 Size
9” x 5.5” x 8.5”		 Warranty
10 years

BMS: Yes
Chemistry: LFP
Efficiency: 98%
Memory: None
Max Charge/Voltage: 14.6V
Peak Discharge: 180A
Cut-off Voltage: 10.5V
Max Charge/Discharge Current: 55A
Operating Temp: -4°F – 140°F
Low Temp Charging Protection: Yes
Cell Type: Prismatic
Bluetooth: Yes

THE MILLERTECH® SPORT SERIES LITHIUM BATTERY
10 YEAR GUARANTEED WARRANTY IS SIMPLE!

TERMS:

From the date of your battery purchase through year number 10 of ownership, your battery is covered. If it stops working during this time, we will repair or replace it with a battery of equal or greater value for FREE!

SHIPPING:

We cover all shipping costs associated with shuttling your battery back and forth for repair or replacement. It is our warranty; it is our cost; not yours.

EXCLUSIONS:

There are NONE! You trusted Millertech®, and if it’s within the warranty period your Millertech® battery is completely covered for everything!

PROOF OF PURCHASE:

You don’t need one. If it’s Millertech®, it’s covered!

FOR WARRANTY SERVICE CALL: 855-MAX-LITH
EMAIL:  warranty@millertechenergy.com

Customer Reviews

12v55ah sport series lithium battery with bluetooth
Maurice Tetreault
Rating: 5/5
New to Millertech
Batteries and charger work great. Love the bluetooth and App to let me know level of charge.
Sun Mar 23 2025 21:50:45 GMT+0000 (Coordinated Universal Time)
12v55ah sport series lithium battery with bluetooth
D. Barber
Rating: 5/5
Great Service, Great Batteries!
Batteries came very quick and packaged very well. Hooked them up, and went out to try them out. I have a 17ft tracker, and after about two to three hours of running around with my 24V trolling motor, I still had 95% capacity on my batteries. Being able to see the capacity and what the batteries are doing in real time on the App, is great. Thanks MillerTech!
Sat Mar 22 2025 15:04:20 GMT+0000 (Coordinated Universal Time)
12v55ah sport series lithium battery with bluetooth
Rodney Spencer
Rating: 5/5
55ah battery
I bought a Millertech 55ah to run my electronics. My first impression is the Bluetooth data that the battery shows. I read a lot of reviews on many companies batterie's, but I came back to these principals. American made and here in Ohio. The company techs have great knowledge on the products they sell.
Sun Jan 12 2025 01:13:30 GMT+0000 (Coordinated Universal Time)

What the pros are saying about Millertech batteries

Millertech Powering the Pros justin youtube Link
Millertech Powering the Pros brian post youtube Link
Millertech Powering the Pros Nick Lebrun youtube Link