SFK-275HP 12v 275AH High Power Lithium Iron Phosphate Battery

Sun Fun Kits
Return Policy:
30 Day Returnable ( Restocking Fee : $0.00 )
Shipping Availability:
2 to 3 Days
Max Discharge (Amps)

Max Discharge (Amps)

Battery Capacity (AH)

Battery Capacity (AH)



Cycle Life

Cycle Life

3000 at 80% Depth of Discharge
This product has been updated with a newer version, please visit the updated product below:
SFK-275SE 12v 275 AH 3.6 kWh Smart Active Balance Endurance Battery Lithium Iron Phosphate

The SFK-275HP battery is our kit battery with the BMS, cells, wiring, and all other components assembled for you. This battery requires no assembly and is a drop-in Lead Acid/AGM replacement. Enjoy lithium power worry free with the safety and security of a 8 year warranty from Sun Fun Kits.


The SFK-275HP is hand built by Sun Fun Kits technicians in Baton Rouge, Louisiana and is built to order. This battery uses components from the United Sates, China and India and has gone through a complete balance, capacity and load test to ensure it is built to industry standards. Your battery comes ready to use and we recommend you review the user guide on how to get the optimum performance and longevity of your unit.


We have built the SFK-275HP battery to be serviceable and upgradeable, this allows for efficient service and repairs and ensures product longevity. Non serviceable products generally have to be disposed of in case of issues (regardless of how insignificant) this contributes to e-waste and is against many right to repair laws; because of this we feel our kit approach offers the best in reliability and longevity for our customers.


The SFK-275HP battery may be used anywhere typical deep cycle lead acid/agm/flooded batteries are used and does not require special charging equipment as they have built in circuitry that ensures proper charging and discharging.

  • 3.6 kilowatts of reliable lithium power, replaces 5 lead acid / agm batteries (100ah) and is designed to be discharged to 100% of available capacity without harm to the battery.
  • Up to 1.8 kilowatts of peak power, and 1250 watts of continuous power.
  • Expected cycle life of 2000-3000 cycles at 80% DOD, and up to 5000 cycles at 50% DOD, 15 year usage life.
  • Fully compatible with existing 12v infrastructure including standard 12v lead acid/agm battery chargers, trickle chargers and high voltage DC systems up to 48v (when linked in series with 4 batteries).
  • Smart phone/device compatible with Bluetooth monitoring/configurable app. Available for IOS/Android.
  • Can be linked in series up to 48v (4 batteries in series) as well as up to 4 in parallel with a combined output of 3.5 KW continuous.
  • Upgradeable in the future with new options such as battery heating (cold temperature) as well as upgrading to larger capacity cells.
  • Automatic low/high temperature and low/high voltage cut-off to stop battery damage from occurring.
  • Automatic short circuit prevention as well as over charge and over discharge prevention.
Recommended Uses

  • Use in RVs as a 12-48 volt power source, or as part of an inverter bank to provide standby power
  • Use in solar panel installs as a power source for storing power
  • Use in troller motor applications for boats (requires ensuring that the battery is isolated and protected from water intrusion)
  • Use in Golf Carts or other small electric vehicles that have amperage governors (care must be taken to ensure that the batters are protected from water intrusion)
  • As a DC power source for power supplies and other items needing DC power
  • Use in DC to AC inverters where standby / backup power is needed such as data centers, or residential power sources.

Shipping Availability 2 to 3 Days
GTIN 00850036385073
Manufacturer Sun Fun Kits
Battery Specs
Chemistry LifePo4 (lithium Iron Phosphate)
Certification Standard UL 1642
Cycle Life 3000 at 80% Depth of Discharge
Continuous Discharge (Watts) 1250
Cells 4
Battery Capacity (AH) 275
Voltage 13.6
Watt Hour Capacity (kWh) 3.6
Max Discharge (Amps) 150
Max Charge (Amps) 80
Construction Material ABS, Aluminum, PCB
Battery Weight (Lbs) 60
Balance Capacity (AH) 5200
Terminal Studs M8
Physical Specs
Item Weight 54 lbs , 24.5 KG
Height 245 MM , 9.65 Inch , 11 inch / 280 MM including Terminal Screw
Width 180 MM , 7.5 Inch
Length 345 MM , 13.6 Inch , 14.6 Inch / 371 MM Including handles
General Information
Country of Origin USA, CHINA.
Service and Support Serviced, Repairs in USA
Warranty 8 Year 60/96 Month Warranty
Customer Review