The MillerTech 12V 190Ah Dual Purpose Battery provides a powerful 190Ah reserve capacity and 1500 CCA, delivering reliable performance for every marine adventure. Equipped with Bluetooth monitoring and low-temp charging protection, this battery ensures optimal functionality even in colder climates. Fully compatible with Mercury 4-stroke engines up to 250 hp, it meets and exceeds all cranking and charging needs, with proven dependability since 2016. This battery’s robust design is perfect for those who demand maximum power and reliability on the water.

SPECIFICATIONS

WARRANTY

WEIGHT

33 lbs

SIZE

13” x 6.75” x 9”
Group 31 equivalent

STORAGE CAPACITY

190 ampere hours (Ah). Milleretch Lithium batteries provide dependable, consistent power throughout the entire 190Ah capacity. Unlike traditional SLA batteries, Millertech Lithium LiFePO4 batteries maintain a flat voltage curve, delivering steady power output as they discharge. This design ensures you’ll enjoy uniform performance right down to the last bit of energy.

Engine Starting Power

Lithium battery equivalent to 1,500 Cold Cranking Amps (CCA) of lead acid battery engine starting power. Suitable for automotive and other applications. Marine Outboards: Please refer to your manufacturer recommendations.

Bluetooth Capable

Yes

VOLTAGE

12.8V 

ENERGY

2432Wh

TERMINALS

M8

LIFECYCLES (BATTERY LIFESPAN)

Up to 80% capacity for 5,000 cycles under recommended conditions—compared to just 500 cycles for typical SLA batteries. Millertech Lithium batteries offer exceptional longevity, making the cost per use only a fraction of that of traditional batteries.

OPERATING TEMPERATURE

Engineered for rugged and extreme conditions, Millertech Lithium batteries outlast SLA and other lithium options. With an optimal operating range from -20°F to +140°F (performing reliably down to -20°F), these batteries are built to handle tough environments. Note: For best results, avoid charging below 32°F.

DISCHARGE

190A max continuous discharge. The flat discharge voltage curve provides a 75% bigger capacity then a SLA 50Ah battery.

CHARGE

100a max, 14.4V recommended, 15V max Please note: this battery should be charged using a LiFePO4 compatible charger. A SLA charger may work, but will reduce performance and lifespan of the battery.

INCLUDES ACTIVE BMS PROTECTION

Equipped with an advanced circuit, this battery ensures cell balancing, low and high voltage cutoff, short circuit protection, and high-temperature protection. These features boost performance and significantly extend the battery's lifespan.

Unleash the Power of MillerTech Lithium

The MillerTech 12V 190Ah Battery offers 1500 CCA, Bluetooth monitoring, and low-temp protection, ideal for high-demand marine applications.

USD : 96.59