Slimline Batteries

A man in a hat and green shirt stands outdoors by a table displaying several large black lithium batteries, giving a thumbs up and smiling at the camera. Trees and grass are in the background.
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  • iTECH300US | Ultra Slim Deep Cycle Lithium Battery | with Bluetooth LiFePO4 300Ah - iTechworld

    iTECH300US
    Ultra Slim Deep Cycle Lithium Battery
    with Bluetooth LiFePO4 300Ah

    5.0
    Rated 5.0 out of 5 stars
    1 Review
    • Bluetooth BMS
    • Ultra-slim at 82mm thin
    $1,999
    $1,999
    $2,299
  • iTECH200US | Ultra Slim Deep Cycle Lithium Battery | with Bluetooth LiFePO4 200Ah - iTechworld

    iTECH200US
    Ultra Slim Deep Cycle Lithium Battery
    with Bluetooth LiFePO4 200Ah

    5.0
    Rated 5.0 out of 5 stars
    2 Reviews
    • Bluetooth BMS
    • Ultra-slim at 62mm thin
    $1,599
    $1,599
    $1,799
  • iTECH300SS | Super Slim Deep Cycle Lithium Battery | with Bluetooth LiFePO4 300Ah - iTechworld

    iTECH300SS
    Super Slim Deep Cycle Lithium Battery
    with Bluetooth LiFePO4 300Ah

    4.9
    Rated 4.9 out of 5 stars
    17 Reviews
    • Bluetooth BMS
    • Super Slim at 126mm wide
    $1,799
    $1,799
    $1,999
  • The iTechworld iTECH200SS Super Slim Deep Cycle Lithium Battery 12.8V 200Ah features a slimline design, top terminals, branded front with specs/icons, and supports Bluetooth LiFePO4 battery monitoring.

    iTECH200SS
    Super Slim Deep Cycle Lithium Battery
    with Bluetooth LiFePO4 200Ah

    4.9
    Rated 4.9 out of 5 stars
    71 Reviews
    • Bluetooth BMS
    • Super slim at 126mm wide
    $1,349
    $1,349
    $2,299
  • iTECH100SS | Super Slim Deep Cycle Lithium Battery | with Bluetooth LiFePO4 100Ah - iTechworld

    iTECH100SS
    Super Slim Deep Cycle Lithium Battery
    with Bluetooth LiFePO4 100Ah

    4.9
    Rated 4.9 out of 5 stars
    96 Reviews
    • Bluetooth BMS
    • Super Slim at 55mm wide
    $699
    $699
    $999
  • iTECH50SS | Super Slim Deep Cycle Lithium Battery | with Bluetooth LiFePO4 50Ah - iTechworld

    iTECH50SS
    Super Slim Deep Cycle Lithium Battery
    with Bluetooth LiFePO4 50Ah

    4.9
    Rated 4.9 out of 5 stars
    101 Reviews
    • Bluetooth BMS
    • Super Slim at 70mm wide
    $439
    $439
    $649
  • The iTechworld Complete Slimline 4WD Kit | 200Ah includes two large lithium batteries, a 2000W inverter, DC-DC charger, fuse, cables, connectors, battery trays, and a remote display—all against a white background.

    Complete
    Slimline 4WD Kit
    200Ah

    • 200ah Lithium Battery Power
    • iTECHDCDC40 Charger
    From $2,386.20
    From $2,386.20
    $3,274
  • The iTechworld iTECH100SX Slim Deep Cycle Lithium Battery (Bluetooth LiFePO4, 12.8V 100Ah, 1280Wh) is black and orange, features front-facing icons/branding, and is ideal as an off-road battery.

    iTECH100SX
    Slim Deep Cycle Lithium Battery
    with Bluetooth LifePO4 100Ah

    5.0
    Rated 5.0 out of 5 stars
    1 Review
    • Bluetooth BMS
    • Lightweight at 10.9kg
    $529
    $529
    $899

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Slimline Batteries

Slimline Batteries Built for Tight Installs and Tough Conditions

Space matters when you’re setting up a canopy, camper, or tight-fit 4WD build. That’s where iTechworld slimline batteries really come into their own, bringing serious 12V power in a sleek, space-saving design. 

Built with premium lithium LiFePO4 cells and engineered for Australian touring conditions, these slim lithium battery 12V units go where others don’t fit. How do we know they’re ready to tackle the harsh Australian climate? Because our engineers rigorously test them in real-world conditions. Invest in a slimline lithium battery today and get power you can count on, wherever you go.  

Power Your Next Adventure With an iTechworld Slimline Lithium Battery

It’s not hard to see why we’re Australia’s trusted portable power experts. If you need some more persuading on what our slimline batteries can do, let’s take a look: 

  • Slim, Lightweight Design: These small but powerful batteries pack up to 200Ah in a compact slimline design; great for under-seat installs, canopies, or even behind drawers. 

  • A-Grade Prismatic Lithium Cells: A slimline lithium battery from iTechworld offers safer, longer-lasting and thermally stable power you can rely on.

  • Flexible Mounting: Install yours vertically or horizontally to suit your setup perfectly.

  • Built for Aussie Conditions: We design and test in real-world conditions to handle red dust, vibration, and heat, meaning they won’t let you down.

  • Solar-Ready & 12V Compatible: Just as at home with dual battery systems as off-grid solar rigs. 

  • Real Local Aussie Support: Get the advice, troubleshooting, and help you need from our Perth-based team. No scripts. No offshore call centres. 

  • Family Owned and Operated: Here at iTechworld, we’re proud to be a family-owned business that’s an innovator, as well as a supplier.

Slimline Lithium Battery FAQs

How do iTechworld slimline batteries differ from traditional deep cycle batteries?

A slimline lithium battery from iTechWorld promises the same high-performance, just in a lower profile housing that’s made for space-limited installs. Compared to old-school AGM batteries, a slim line battery is lighter, longer-lasting, and far more efficient.

Is a slimline lithium battery suitable for 4WDs, campervans, and caravans?

Yes, they’re a great option for all. Slimline batteries are a favourite for canopy builds, under-bonnet installs (in appropriate models), under-bed storage, and tight side compartments in vans or caravans.

What size slimline battery do I need for my setup?

Always start with your power needs. A 100Ah slimline lithium battery is great for lights, water pumps, and fridges. Make the jump to 150Ah or 200Ah if you’re adding inverters, coffee machines, or multiple devices. If you’re unsure, our team will help you size it up.

What is the lifespan of an iTechworld slimline lithium battery?

Our slimline range is built with premium LiFePO4 prismatic cells, rated for up to 10,000+ cycles. For you, that means up to 10 years of adventures depending on how you charge and discharge.

Can I connect multiple slimline batteries in parallel or series?

Yes, multiple slimline lithium batteries can be paralleled for more capacity (e.g. 200Ah + 200Ah = 400Ah). For series setups, always make sure the battery model is rated for it, or speak to our power experts before installing.

Are iTechworld slimline batteries compatible with solar panels?

Absolutely. Link them up with our 4WD solar panels or MPPT solar regulators for a clean off-grid charging solution that won’t let you down.

Are slimline batteries safe to use in enclosed spaces?

Yes. LiFePO4 chemistry is the safest lithium format and our built-in battery management systems (BMS) handle temperature, short circuits, and overcharging. Slim line lithium batteries don’t off-gas or leak like older batteries.

Can I mount a slimline battery vertically or horizontally?

You can do either, just don’t mount it upside-down. Whether you’re sliding a slim lithium battery under a seat or into a canopy drawer, flexibility is the name of the game with our slimline range.

Are these batteries waterproof or weather-resistant?

They’re rugged, but not waterproof on their own. Use a sealed enclosure for outside mounts or where water might be an issue.

Why isn’t my slimline battery charging?

Double-check your charger is lithium-compatible (not just AGM). Also inspect the fuse, cable thickness, and connections. If it's still not working, our all-Aussie support team will walk you through troubleshooting.