12V 300Ah Heated Lithium Battery
| Capacity 300AH |
Voltage 12V |
Weight 62.3 lbs |
Size 13.5” x 9.6” x 10.5″ |
Warranty 10 years |
Voltage: 12.8V
Capacity: 300Ah
Energy: 3840Wh
Efficiency: 98%
Memory Effect: None
BMS: Yes
Bluetooth: Yes
Weight: 62.3lbs
Dimensions: 13.5”x9.6”x10.5”
Built in Heater: Yes
Max Charge Voltage: 14.6
Max Continuous Charge/Discharge Current: 150A
Peak Discharge: 5S 400A
Low Cut-Off Voltage: 10V
Operating Temperature: -4°F – 140°F
Low Temp Charging Protection: Yes
Cell Type: Prismatic
Group Size: 50
Construction: Dual stainless steel air vents, pure brass terminals, custom waterproof case, integrated carry handle
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: [email protected]
| Capacity 300AH |
Voltage 12V |
Weight 62.3 lbs |
Size 13.5” x 9.6” x 10.5″ |
Warranty 10 years |
Voltage: 12.8V
Capacity: 300Ah
Energy: 3840Wh
Efficiency: 98%
Memory Effect: None
BMS: Yes
Bluetooth: Yes
Weight: 62.3lbs
Dimensions: 13.5”x9.6”x10.5”
Built in Heater: Yes
Max Charge Voltage: 14.6
Max Continuous Charge/Discharge Current: 150A
Peak Discharge: 5S 400A
Low Cut-Off Voltage: 10V
Operating Temperature: -4°F – 140°F
Low Temp Charging Protection: Yes
Cell Type: Prismatic
Group Size: 50
Construction: Dual stainless steel air vents, pure brass terminals, custom waterproof case, integrated carry handle
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: [email protected]
Spend less time worrying about power and more time doing what you came to do. The 12V 300Ah Sports Series (Heated) battery is built to deliver massive, dependable energy for high-demand marine, RV, and off-grid applications. Designed with over-engineered components, a rugged waterproof case, and a high-performance BMS, it provides consistent output without drop-off or failure. This isn’t a battery you manage—it’s one you rely on when everything else depends on it. Backed by a 10-year no-questions-asked warranty, it’s built to perform and built to las
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