ULTRA-X

Our most advanced and compact high-capacity lithium battery series. For serious off-grid installations.

Smart Remote Monitoring

Monitor critical battery parameters such as SoC, level, voltage, current, temperature and more, right from your smart phone.

Robust Metal Case

The heavy duty metal casing protects your battery in harsh conditions.

Integrated Mounting Points

Integrated anti vibration mounting system makes installing and securing your Ultra-X battery easy. No tray required.

230Ah

230A Continuous Charge and Discharge with 460A Pulse Capability

The impressive 230A continuous output can easily power a 2000W inverter and handle additional power-hungry 12V devices. With a 460A pulse capability for 30 seconds, this battery can also support a 3000W inverter and compatible devices that surge to 3000W during startup.

4000+ Cycles

4000+ Cycles @ 80% DoD 0.5C

The battery is rated to be discharged at a constant rate of 115A, down to 80% of the battery's capacity, and then recharged at 115A for over 4000 cycles. After this, the battery is rated to have reduced its usable capacity to 80% of the expected capacity.

Introducing Ultra-X

Connect Multiple in Parallel or Series Configuration

Link up to four Ultra-X batteries in parallel to create a massive battery bank with over 900Ah of useable capacity, delivering serious power for extended off-grid adventures.

Select From Two Compact Designs

Choose from our ultra thin or ultra compact variations. Designed to fit in compact spaces, on canopy walls, behind seats or under false floors.

Monitor Your Ultra-X Battery Bank Remotely

Monitor multiple batteries in a series or parallel configuration using a KickAss Remote Display Unit and RJ45 Cable. Alternatively you can use the Kickass Bluetooth app. No external shunt or additional hardware required.

Connect Multiple in Parallel or Series Configuration

Link up to four Ultra-X batteries in parallel to create a massive battery bank with over 900Ah of useable capacity, delivering serious power for extended off-grid adventures.

Select From Two Compact Designs

Choose from our ultra thin or ultra compact variations. Designed to fit in compact spaces, on canopy walls, behind seats or under false floors.

Monitor Your Ultra-X Battery Bank Remotely

Monitor multiple batteries in a series or parallel configuration using a KickAss Remote Display Unit and RJ45 Cable. Alternatively you can use the Kickass Bluetooth app. No external shunt or additional hardware required.

Explore the Ultra-X Range

KickAss 12V Slimline 230Ah Ultra-X Deep Cycle Lithium Battery

Ultra slim design. Supports parallel and series connection to create a battery bank with over 900Ah of capacity. Advanced BMS with Bluetooth app.
Pre-Order Special: $1,995
+ $200 KickAss Cash Back

KickAss 12V Compact 230Ah Ultra-X Deep Cycle Lithium Battery

Ultra compact design. Supports parallel and series connection to create a battery bank with over 900Ah of capacity. Advanced BMS with Bluetooth app.
Pre-Order Special: $1,695
+ $200 KickAss Cash Back

900+Ah

Link up to four Ultra-X Series batteries in parallel to create a massive 920Ah of useable capaity.

*That's enough capacity to run a KickAss 45L fridge for 1,500+ hours.

Remote Monitoring

Supporting Bluetoooth app and remote display screen.

Advanced Safety

BMS with multiple safety features.

Robust Metal Case

Durable metal with integrated mounting points.

After field testing the KickAss Ultra-X Batteries for several months in harsh conditions, they’ve proven their worth. The compact design made them easy to install in my canopy, and despite the heat and dust, their high capacity kept all my gear running smoothly. Lightweight, durable, and built to last – these batteries truly kick ass!

Dennis M