(1 Reviews)

12V 135Ah Heated Dual Purpose Lithium Battery

12135-DPH

Built for larger vessels and higher power demands, the Millertech 12V 135AH Heated Dual Purpose Starting Battery pairs superior capacity with advanced heating technology for worry-free cold-weather starts. The integrated heater automatically engages at 32°F, using charger power to raise the battery to 34°F, ensuring optimal charging and performance. Its durable, sealed design withstands tough marine environments, while Bluetooth connectivity makes monitoring simple. With extended run time, dependable starting power, and a 10-year full coverage warranty, this battery is a long-lasting upgrade for serious boaters.


Customer Reviews

Your Name
Rating: 5/5
Millertech 135 mah battery
Great battery, I’ve only used it twice, but it’s only discharged down to 80% after 2 times out without recharging it. I charged it when I got it in October and just got to use it in march. I believe it’s going to be the best battery I’ve ever purchased. I thought the price was a little high, but with a 10 year warranty on it, and me being 67 years old, it will probably be the last battery I will have to buy.
Sun Mar 08 2026 03:42:53 GMT+0000 (Coordinated Universal Time)

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