12V 190AH Dual Purpose Sport Series Battery w/ BT (12190-DP)

(21 Reviews)
$1,299.00

Free shipping

Applications For This Battery

An Absolute Game Changer!

With an amazing 190AH’S of reserve capacity and 1500 CCA we are confident the raw power of this new battery will take your next trip on the water to a new level! With built in low-temp charging protection! (Bluetooth Enabled)

Millertech Dual Purpose meets and exceeds any charging or cranking requirements actually needed to work with the Mercury 4 stroke up to 250hp. We have many customers using them to start there motors since 2016 with no issues.

UL Certified; ANSI/CAN/UL 1973:2022 Ed.3

Items you may need with this battery:

Download ManualDownload Sports Series WarrantyApple StoreGoogle Playstore

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Capacity
190AH
Voltage
12.8V
Weight
42 lbs
Size
13” x 6.75” x 9”
Warranty
10 years

BMS: Yes
Chemistry: LFP
Efficiency: 98%
Memory: None
Max Charge/Voltage: 14.6V
Cut-off Voltage: 10.5V
Max Charge/Discharge Current: 190A
Operating Temp: -4°F – 140°F
Low Temp Charging Protection: Yes
Cell Type: Prismatic
Group Size: 31

Bluetooth: Yes

UL Certified; ANSI/CAN/UL 1973:2022 Ed.3

Dual Purpose Batteries LiFeP04 are quickly becoming a popular item that many enthusiasts demand. Our team of Engineers and Technicians are a very aggressive group and were not willing to take a backseat on this trend. This battery has enough cranking amps to start even the largest engines in the industry, plus they have enough reserve capacity to power multiple power hungry graphs for 8 plus hours. These Dual Purpose models will change the way anglers think about there power needs forever.

(KEY FEATURES)

10 year Industry Leading Warranty

BCI Group Size 31

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, reclosable 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.

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.

 

 

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

Douglas Smith
Rating: 5/5
7 Months later
Been running this battery 7 months now and still very impressed with the performance! Millertech Battery 70% 132.6/190.0Ah ( 5 hrs 41 Min) 57.4 Ah used 09:24 - 13.2v 100% 189.1/190Ah 11:31 - 13.1v 15:05 - 13.1v 70% 132.6/190.0Ah All my boat electrical need run on this battery. Garmin Echomap Ultra 126sv (2) 106sv (1) LVS32 (1) LVS34 (1) Livewell 1000 gph (1) Baitwell 500 pgh (1)
Sat Nov 22 2025 15:23:44 GMT+0000 (Coordinated Universal Time)
Michael Budnaitis
Rating: 5/5
So far so good
Only been out couple times since installing. After 6 hours on the water running 3 screens and live well, only brought battery down to 80%. Phone app is great to monitor battery but ultimately time will tell. Extremely satisfied to this point.
Fri Aug 08 2025 00:51:22 GMT+0000 (Coordinated Universal Time)
Gerald Accardo
Rating: 5/5
Great Stuff
These are great batteries and a good company to work with
Tue Aug 05 2025 13:57:44 GMT+0000 (Coordinated Universal Time)
David Robison
Rating: 5/5
Customer Service
MillerTech has bar none the best customer service ! Roman exceeded my expectations with a proactive response in getting me a much needed battery to my fishing location in Pennsylvania. My hats off to all employees who work for this company. Keep up the great work!!! Thanks Roman!!! David Robison
Mon Jul 07 2025 00:00:00 GMT+0000 (Coordinated Universal Time)
Jon Byrd
Rating: 5/5
Cranking battery
Bought the 12 volt 190 ah lithium battery, customer service was great, had battery the next day, fished a 8 hour tournament running all my graphs ( 4 of them ) with livewell pumps going all day and still had 60% left. The Bluetooth information Paige is a great feature as well
Thu Jun 26 2025 01:46:55 GMT+0000 (Coordinated Universal Time)
Dan Goodman
Rating: 5/5
Couldn’t be more pleased with all the batteries I purchased, outstanding products and an exceptional company thank you!!!
Thu May 01 2025 01:46:40 GMT+0000 (Coordinated Universal Time)
Darryl Zastrow
Rating: 5/5
So far it’s been great!
Wed Apr 16 2025 04:13:35 GMT+0000 (Coordinated Universal Time)
Clayton Thomas
Rating: 5/5
12V 190AH Dual Purpose Starting Battery w/ BT (12190-DP)
Mon Apr 14 2025 14:43:36 GMT+0000 (Coordinated Universal Time)
J.R. CALLISON
Rating: 5/5
First class
I purchased the Dual Purpose 190ah. The great people at Millertech had the battery shipped out the next morning and it was delivered to my house the very next day. They provided email tracking and even sent an email once the battery was confirmed as delivered. Such a great company!! Thanks for everything
Fri Apr 11 2025 16:39:32 GMT+0000 (Coordinated Universal Time)
Douglas Smith
Rating: 5/5
190Ah battery first day on the water.
Started about 09:00 on the water. Boat setup 2 Echomap Ultra 126SV, LVS32, LVS34 and GT54 on the bow. 1 Echomap 106SV Dash GT56, running the live well (1000 gph) and all of the boat electronics are on the 190AH. Started the day with 189.1Ah on the App and when I finished at 14:06 was at 139.2Ah left on the battery. So using 49.9 Ah Comparing that to my old AGM 100Ah that would only last 4 hours.
Wed Mar 26 2025 13:39:03 GMT+0000 (Coordinated Universal Time)

What the pros are saying about Millertech batteries