ARB Slimline 100 12V 100Ah Lithium Iron Phosphate Battery – Compact Auxiliary Power Solution

ARB Slimline 100: Compact Lithium Auxiliary Battery for Touring and Overlanding

The ARB Slimline 100 12V 100Ah Lithium Iron Phosphate Battery is a purpose-built auxiliary power solution designed for modern 4x4, touring, and expedition vehicles. Leveraging advanced LiFePO4 technology, ARB delivers a high-capacity, lightweight battery engineered for demanding off-road and remote travel applications where space and reliability are critical.

How the ARB Slimline 100 Battery Supports Vehicle Power Needs

This slim-profile lithium battery is engineered to provide stable 12V power for a wide range of onboard equipment. Its 100Ah (1280Wh) capacity enables users to run essential gear such as portable fridges, lighting, communications, and even high-draw appliances like induction cookers or coffee machines via an inverter. The integrated 40A DC-DC charger and advanced battery management system (BMS) ensure safe, efficient charging from vehicle alternators (including smart alternators) or solar systems, making it ideal for extended off-grid use.

Where the Slimline 100 Excels: Space-Efficient Power for Modern Builds

Traditional auxiliary batteries often require bulky mounting solutions that consume valuable cargo space. The ARB Slimline 100’s ultra-slim form factor (712 × 266 × 50 mm) allows installation in locations previously unsuitable for power storage, such as:

• Behind rear seats
• Inside canopy headboards
• Under drawer systems
• Along cargo area walls

This flexibility is especially valuable for touring vehicles, overlanding builds, camper conversions, and expedition rigs where every centimetre counts.

Key Benefits of the ARB Slimline 100 Lithium Battery

• Ultra-slim, low-profile design for installation in tight spaces
• 100Ah lithium iron phosphate capacity for reliable, deep-cycle power
• Integrated 40A DC-DC charger simplifies system wiring
• Advanced BMS with protection against over-temperature, over-voltage, and short-circuit
• High discharge capability: up to 200A for 20 minutes, 350A peak (5 seconds)
• Bluetooth connectivity for real-time monitoring via mobile app
• Parallel expansion capability for larger power requirements

Technical Specifications

Installation and Usage Considerations

The ARB Slimline 100 is designed for straightforward installation in a variety of vehicle locations. Its integrated DC-DC charger reduces the need for additional components and simplifies wiring. The battery is suitable for both new builds and upgrades to existing dual-battery systems, particularly where space is at a premium. Bluetooth connectivity allows users to monitor battery status and system health remotely, supporting confident power management on extended trips.

Solving Real-World Power Challenges for Overland and Expedition Vehicles

Remote travel demands reliable, high-capacity power without sacrificing storage or payload. Traditional lead-acid batteries are heavy, bulky, and often require frequent replacement. The ARB Slimline 100 addresses these issues with a lightweight, compact lithium solution that offers deeper discharge, longer cycle life, and real-time monitoring—helping users stay powered up and in control, wherever their journey leads.

Frequently Asked Questions: ARB Slimline 100 Lithium Battery

What equipment can the Slimline 100 power?

The battery is suitable for running portable fridges, camp lighting, communications, laptops, cooking appliances, and other 12V or inverter-powered devices commonly used in touring and expedition setups.

Where can I install the Slimline 100 in my vehicle?

Thanks to its ultra-slim design, the battery can be mounted behind seats, under drawers, inside canopies, or along cargo walls—ideal for vehicles with limited space.

Does the battery include a built-in charger?

Yes, the integrated 40A DC-DC charger allows charging from vehicle alternators (including smart alternators) and solar systems, reducing installation complexity.

Is it possible to expand the system for more capacity?

Multiple Slimline 100 batteries can be connected in parallel, enabling larger power systems for high-demand builds or extended off-grid travel.

How do I monitor battery health and performance?

The battery features Bluetooth connectivity and a dedicated mobile app for real-time monitoring of charge status, voltage, current, and system diagnostics.

What are the main advantages of LiFePO4 over traditional batteries?

Lithium iron phosphate batteries offer higher usable capacity, lighter weight, longer cycle life, improved charging efficiency, and greater discharge capability compared to lead-acid designs.