12V 135AH Heated Starting Battery w/ BT
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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.
Description
| Capacity 135AH |
Voltage 12.8V |
Weight 33 lbs |
Size 13” x 6.75” x 9” |
Warranty 10 years |
SPECIFICATIONS
CAPACITY- 135AH
ENERGY STORAGE- 1.728kWh
NOMINAL VOLTAGE- 12.8V
FLOAT VOLTAGE- 13.5V
SELF DISCHARGE RATE- < 4% / MONTH
TORQUE SETTING- 10 FT-LBS.
COLD CRANKING AMPS- (CCA) 1500
CHARGING
MAX CHARGE VOLTAGE- 14.6 V
MAX CHARGE CURRENT- 100A
RECOMMENDED CURRENT- 30A
CHARGE TEMPERATURE RANGE- 25-131°F
RECOMMENDED CV- 15 MIN
DISCHARGING
MAX CONTINUOUS DISCHARGE CURRENT- 100A
DISCHARGE CURRENT 5S- 300A
DISCHARGE TEMP. RANGE- -4-140°F
DISCHARGE CUT OFF VOLTAGE- 10V (ANY CELL 2.5)
RECOMMENDED LOW VOLTAGE DISCONNECT- 12.0V
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!




