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SFK-260EX 12v 3.4KW / 260AH Extended Cycle LFP Smart Self Heating Battery

Sun Fun Kits
Return Policy:
30 Day Returnable ( Restocking Fee : $0.00 )
Shipping Availability:
1 Day
Stock Status:
Out of Stock
Continuous Discharge (Watts)

Continuous Discharge (Watts)



Battery Capacity (AH)

Battery Capacity (AH)



Watt Hour Capacity (Kwh)

Watt Hour Capacity (Kwh)

Max Discharge (Amps)

Max Discharge (Amps)


Lithium Charger:
Lithium Charger
The SFK-330 is a 23 amp charger and can charge your battery from 0% to 100% in about 12 hours (overnight).
Add Jacket:
Add Jacket
Battery Cable Kit:
Battery Cable Kit
Great way to add a quick disconnect to your battery, rated for up to 175A.
Our Regular Price: $1,450.00 (13% OFF)
On Sale: $1,260.00
Configuration Price: $1,260.00
  • Extended Cycle life of up to 6000 cycles at 80% depth of discharge.
  • 3.4 kilowatt hours of reliable lithium power, replaces up to 5 lead acid / agm batteries (100ah) and is designed to be discharged to 100% of available capacity without harm to the battery.
  • Up to 2.4 kilowatts of peak power, and 1500 watts of continuous power.
  • Expected cycle life of 6000 cycles at 80% DOD, and up to 8000 cycles at 50% DOD, 12-15 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).
  • Built-in cell heaters to allow for low temperature charging, temperature to activate heaters can be set inside the app.
  • Manual Heating Switch with 5 modes to allow for standby heating. 
  • Removable sealant applied to tounge & grove to improve thermal stability.
  • 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 3.0 KW continuous.
  • 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 1 Day
GTIN 00850036385240
Manufacturer Sun Fun Kits
Battery Specs
Chemistry LifePo4 (lithium Iron Phosphate)
Cycle Life 6000 Cycles at 80% D.O.D.
Continuous Discharge (Watts) 1500
Cells 4
Battery Capacity (AH) 260
Voltage 12.8 , 13.0 , 13.6
Watt Hour Capacity (Kwh) 3.4
Max Discharge (Amps) 200
Max Charge (Amps) 80 , 160
Construction Material ABS, Aluminum, PCB
Battery Weight (Lbs) 60 , 57.8
Balance Capacity (mAH) 5200
Terminal Studs M8
Physical Specs
Item Weight 57.7
Height 11.6 Inch , 290 MM , 10.6 Inch Without Terminal Screws
Width 180 MM , 7.5 Inch
Length 345 MM , 13.6 Inch , 14.6 Inch / 371 MM Including handles
General Information
Country of Origin Made in USA with Domestic & Globally Sourced Components , USA , China
Service and Support Serviced, Repairs in USA
Warranty 8 Year 60/96 Month Warranty
Customer Review