Your cart is currently empty.
Open media 0 in gallery view

XS Power Li-PS3400 12V Group 34 Lithium Battery - 3500W 1200A LiFePO4
In Stock. Typically ships within 2 Business Day.
Sale Ends November 2nd, 2026
Minimum Purchase of $349.00
*Applies to Mechman & XS Power Products ONLY

- Description
- Additional info
- Reviews
- 12V lithium iron phosphate (LFP) battery
- BCI Group 34
- Wattage: 3,500
- Max amps: 1,200
- Cranking amps: 600 (900A AGM equivalent)
- Amp hours: 66 (198Ah AGM equivalent)
- Energy: 848Wh
- Weight: 19.5 lbs (8.85 kg)
- Dimensions: 10.24 in L x 7.2 in H x 6.75 in W
- M6 terminal hardware included
The XS Power Li-PS3400 is a 12-volt BCI Group 34 lithium iron phosphate (LiFePO4) battery delivering 3,500 watts, 1,200 max amps and 600 cranking amps at 19.5 lbs. Group 34 is one of the most common automotive battery sizes, making this a direct-fit lightweight replacement in a huge range of vehicles.
With 66 amp hours (198Ah AGM equivalent) and 848 watt hours on tap, it handles both starting duty and sustained accessory draw. High-power car audio systems, light bars, winches, power inverters and trolling motors all run without the voltage sag that limits a comparable lead-acid battery. Sealed construction keeps it safe from shock, spills and moisture in trucks, UTVs, marine and competition builds.
Key Specifications
Mounting and Charging
The HD-3400 billet hold down, HD-34BS hold down base and 572 Group 34 billet cover all fit this battery. Charge with a lithium-compatible charger rather than a standard AGM unit.
1 Year Warranty | Download Instructions

*CA Pb Eq is the equivalent cranking amp output compared to AGM. *Ah Pb Eq is the equivalent amp-hour compared directly to AGM.
PROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov

