Slim Profile. Zero Compromise.
Built to a higher standard
LiFeTek Ultra-Slim batteries are engineered for tight spaces — cabs, canopies, camper trailers, and under-seat installs — without sacrificing capacity or compliance.
- Ultra-slim form factor — fits where standard batteries can't
- IEC 62619 certified lithium iron phosphate cells
- Integrated BMS with over-voltage, under-voltage and thermal protection
- 7-year manufacturer warranty + 3-year performance warranty
Ultra-Slim Range
Three capacity ranges to suit every build — all in the same slim profile.
100Ah Ultra-Slim
12V
The perfect entry-level slim battery for caravans and camper trailers with limited battery compartment height. Reliable, compliant, and built to last.
Full specs
200Ah & 225Ah Ultra-Slim
12V
Versatile, high-capacity power in a slim enclosure. Choose 200Ah or 225Ah for extended trips and larger off-grid setups.
Full specs
310Ah & 330Ah Ultra-Slim
12V
Serious off-grid capacity in a slim enclosure. Choose 310Ah or 330Ah for extended trips and larger rigs where space is tight but energy demands are high.
Full specsBuilt Slim. Built Australian.
Every LiFeTek Ultra-Slim battery is designed, fabricated, and assembled in our Brisbane facility by experienced battery professionals. The slim form factor is achieved through precision cell stacking and custom-engineered enclosures — not by cutting corners on cell quality or BMS capability.
We use Grade A LiFePO4 cells with a cycle life exceeding 3,000 cycles at 80% depth of discharge. Each battery undergoes individual testing before leaving our facility, and full test results are publicly available on our website.
Certified
Australian Made
Find an Ultra-Slim Stockist Near You
LiFeTek Ultra-Slim batteries are available through our national network of authorised installers and retailers.