THE MILLERTECH® MARINE CHARGER 3 YEAR GUARANTEED WARRANTY IS SIMPLE!
TERMS:
From the date of your charger purchase through year number 3 of ownership, your charger is covered. If it stops working during this time, we will repair or replace it with a charger of equal or greater value for FREE!
SHIPPING:
We cover all shipping costs associated with shuttling your charger 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® charger is completely covered for everything!
PROOF OF PURCHASE:
You don’t need one. If its Millertech®, it’s covered!
Customer Reviews
Kai Pedersen
Rating: 5/5
On board Lithium battery charger
Took some time to make room and mount it in my boat but it works perfectly and charges my lithium electronics battery quickly.
Fri Aug 29 2025 14:53:54 GMT+0000 (Coordinated Universal Time)
david bear
Rating: 5/5
Performance
Very satisfied with the battery. ., Ran my electronics,2 live well circulators and started the 250 Mercury during a one day tournament. .Still had 50% battery available
Mon Jul 28 2025 20:47:02 GMT+0000 (Coordinated Universal Time)
David J. Sweeney
Rating: 5/5
Just what I needed.
I needed an extra lithium battery and needed a 1 bank charger. From past experience I've found Miller Tech to be the best. The charger seems to be very well made I expect that it is going to live up to Miller Tech's standards.
Thu Jul 17 2025 02:34:12 GMT+0000 (Coordinated Universal Time)
Steven Luniewski
Rating: 5/5
Amazing
I replaced my two parallel 12V acid batteries, which powered my trolling motor and graphs. With those, I’d always notice performance degradation throughout the day. Not anymore with my MillerTech! I’ve used it during 5-hour tournaments, constantly running the trolling motor and graphs, and it held up flawlessly. No issues whatsoever. Worth every penny!
Thu Jun 05 2025 00:17:32 GMT+0000 (Coordinated Universal Time)
Bryan Knapek
Rating: 5/5
Compact Unit
Simple, easy to use, compact unit that’s 12v, 12amp dedicated lithium charger. That works!
Mon Apr 21 2025 00:33:58 GMT+0000 (Coordinated Universal Time)
Maurice Tetreault
Rating: 5/5
Great charger
A great addition to my boat. Charges my battery fast so I am always ready to hit the water.
Sat Apr 12 2025 13:03:32 GMT+0000 (Coordinated Universal Time)
Mike Florendo
Rating: 5/5
FAST CHARGE
Awesome charger, love how easy it was to install and the battery connector cables is a great addition. Charges fast to get you back out on the water.
Sat Apr 05 2025 22:18:39 GMT+0000 (Coordinated Universal Time)
Larry Treece
Rating: 5/5
Boat battery
So far I am completely satisfied. Fast delivery and just what I ordered with a reasonable price.
Sun Dec 15 2024 00:28:02 GMT+0000 (Coordinated Universal Time)
HZ
Rating: 5/5
12V charger
works as expected
Thu Sep 19 2024 10:22:41 GMT+0000 (Coordinated Universal Time)
Todd Michel
Rating: 5/5
Solid charger
Using it with the 135 AH battery in my bass boat. Solid build , easy connection plugs, works great !
Wed Aug 28 2024 12:46:53 GMT+0000 (Coordinated Universal Time)
