What’s the difference between AGM and lithium batteries?

AGM batteries use lead-acid chemistry and are generally heavier, with less usable capacity and a shorter cycle life. Lithium batteries are lighter, charge faster, and offer significantly more usable power per charge. While AGM is more affordable upfront, lithium batteries often work out better value long-term.

Can I replace my AGM battery with a lithium one?

In most cases, yes – especially with our basic lithium batteries, which are designed as drop-in replacements for AGM. Just make sure your DCDC charger or solar regulator is lithium-compatible. If you're unsure, our team can check your setup and make sure everything is good to go.

What’s the advantage of a smart or Ultra-X lithium battery?

Smart lithium batteries offer extra communication features, allowing them to ‘talk’ to other smart batteries and compatible chargers for improved monitoring and control. Ultra-X lithium batteries take it further – combining huge capacity, premium performance, long cycle life and Bluetooth app monitoring in one compact package.

KickAss Battery Guide: Which Type Is Right for You?

From classic AGM to our top-of-the-line Ultra-X lithium range, there’s a KickAss battery to suit every rig, setup, and budget. Whether you're running a simple weekend setup or a serious off-grid system, choosing the right battery makes all the difference. Here’s a quick overview of the different KickAss battery types to help you pick your perfect power source.

AGM Batteries - Tried, Tested, Beloved

KickAss AGM Batteries are a staple in 12V setups for good reason. Reliable, rugged and maintenance-free, they’ve been powering fridges, lights, and accessories for years – and they’re still going strong.

Affordable and dependable
Spill-proof and safe for indoor use
Tough casing and vibration-resistant
Compatible with solar, DCDC, and mains charging

Best for: Budget-conscious users and classic 4WD or caravan setups that don’t need lithium-level performance.

Slimline Batteries - Big Power in a Small Package

Running out of room? Our Slimline range includes both AGM and lithium options, purpose-built to fit in tight spaces – like behind the seat in your ute or inside a canopy.

Ultra-slim casing
Available in AGM and lithium variants
Ideal for behind-seat or tray setups
Perfect for tradies, tourers and minimalists

Best for: Tight installations where space is at a premium but power is still essential.

Base Lithium Batteries - Deep Cycle Performance with a Smart BMS

Our entry-level lithium base range gives you all the core advantages of lithium – long life, fast charging, lightweight design – plus a built-in Battery Management System (BMS) to protect your battery and your gear.

More usable capacity than AGM
Lightweight and compact
Built-in BMS for safe operation
Charges fast and cycles longer

Best for: Campers and off-grid travellers upgrading from AGM or starting fresh with lithium.

Smart Lithium Batteries - Next Level Lithium with Communication Features

Take your lithium setup to the next level with KickAss Smart Lithium Batteries. Designed to work seamlessly with other smart batteries and KickAss gear, they can communicate with linked systems for better charge control, monitoring, and safety.

All the benefits of lithium
Enhanced BMS with comms support
Connects with other smart batteries and chargers
Suitable for advanced systems and multi-battery setups

Best for: Users running multiple batteries or wanting deeper integration with chargers and BMS systems.

Ultra-X Lithium Batteries - The Rolls Royce of KickAss Batteries

Meet the ultimate in off-grid power. The KickAss Ultra-X range delivers massive capacity, serious cycle life, and rock-solid reliability – all in a surprisingly compact design. With integrated Bluetooth app monitoring and 4000+ cycles at 80% depth of discharge, it’s the peak of lithium performance.

230Ah of usable power
Choose between compact & ultra-slim
Over 4000 cycles @ 80% DoD
Built-in BMS and Bluetooth monitoring via app

Best for: High-demand setups, serious off-grid travellers, and anyone who wants the best of the best.

Still Not Sure Which Battery Suits Your Setup?

If you’re building a new system or upgrading an old one, our team is here to help. We’ll walk you through your options and help you find the right battery for your power needs, space limitations, and budget. Drop into one of our retail stores, or give us a call on (07) 3123 4715.

Explore the full KickAss battery range now.