Slim. No Compromise.
Built to a higher standard
LiFeTek Slim batteries deliver serious lithium capacity in a compact, versatile enclosure — engineered for cabs, canopies, camper trailers, and off-grid builds where space matters.
- Compact slim form factor — fits standard battery compartments
- IEC 62619 certified lithium iron phosphate cells
- Active and passive cell balancing for maximum cycle life
- Integrated BMS with over-voltage, under-voltage and thermal protection
- Sealed zinc plated and powder coated steel enclosure
- Laser welded bus bar connections for lower resistance and superior strength
- 7-year manufacturer warranty + 3-year performance warranty
Slim Range
Four capacities to suit every build — all in the same compact Slim profile.
100Ah Slim
12V
The ideal entry-level slim battery for caravans and camper trailers. Reliable, compliant, and built to last in a compact enclosure that fits where standard batteries can't.
Full specs
200Ah & 225Ah Slim
12V
Maximum capacity in the Slim range. Built for full-time travellers who need serious storage without the bulk — handles extended off-grid stays with ease.
Full specs
310 & 330Ah Slim
12V
Serious off-grid capacity for larger rigs and extended adventures. Pairs perfectly with solar and DC-DC charging for true energy independence.
Full specsBuilt Slim. Built Australian.
Every LiFeTek Slim battery is designed, fabricated, and assembled in our Brisbane facility by experienced battery professionals. The compact 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 a Slim Battery Stockist Near You
LiFeTek Slim batteries are available through our national network of authorised installers and retailers.