ARB Slimline 100 12v/100Ah Lithium Iron Phosphate Battery
The ARB Slimline 100 12V/100Ah lithium iron phosphate battery stands out from traditional auxiliary batteries with its compact, low-profile design, making it easy to store in less-used spaces within your vehicle, maximising the room for your essentials on the go.
| Brand | ARB |
|---|
Optional Accessories
Features & Benefits
- Power and Capacity – 100Ah Capacity (1280Wh) provides
sufficient power for common offroad adventures - Advanced Charging – 40A 4-Stage Charging, efficient and
safe charging process - Safety and Durability – high-quality lithium cells, from a leading manufacturer, meeting rigorous standards
- User-Friendly Monitoring – mobile app: allows monitoring of battery metrics and
error messages for enhanced management - Installation Support – vehicle-specific mounting brackets: developed by ARB
to facilitate secure and efficient installation - Status LED – LED lighting has been included to provide live visual indications of the Slimline 100's status
- Fuse Window – ARB have reimagined fuse replacement to make the often tedious process as simple as possible. The Slimline 100 features an easily accessible and removable window which makes the process seamless
- Power Switch – a power switch has been added in to cater for safe installation
Overview
The ARB Slimline 100 12v/100Ah lithium iron phosphate battery separates itself from regular auxiliary batteries, as its low profile allows it to be hidden away in spaces less often used in the vehicle giving you more space to carry what matters most on your travels.
Engineered to be an all-in-one solution, the ARB Slimline 100 is supported by vehicle specific mounting brackets and wiring looms.
These accessories, along with its built-in DC-DC charger, facilitate easy installation and a smaller space footprint. Power your fridge, camping lights and other essentials with ease – with the ARB Slimline 100.
Our Engineers have worked tirelessly to take the notion of off-grid power and put the ARB spin on it to reimagine a compact full-featured auxiliary battery solution.
Redefining what it means to have auxiliary power when you’re away from home, the ARB Slimline 100 makes installing, powering and monitoring your battery easier than ever before.
Experience the ARB difference and power your off-grid adventures with ease.
Specifications
| Warranty | 5 Years |
| Battery Voltage | 12V |
| Battery Capability | 100Ah |
| Standard Battery Charging Current | 40A |
|
Standard Battery Discharging Current
|
50A |
| Maximum Battery Discharging Current (20 mins.) | 200A |
|
Peak Battery Current (5sec)
|
350A |
| Battery Discharge Cut-off Voltage | 10V |
| Maximum Alternator Input | 30V |
| Maximum Solar Input | 30V |
| Maximum Input Current | 45A |
|
Maximum Output Current from Built-in DC-DC charger
|
40A |
| Discharge Temperature Range | -20 to +60 degC |
| Charging Temperature Range | 0 to +60 degC |
| Weight | 16kg |
| Height | 5cm |
| Width | 26.6cm |
| Length | 71.2cm |


100Ah Capacity
The ARB Slimline 100 provides great outputs when it comes to power and capacity, with 100Ah Capacity (1280Wh) providing sufficient power for off-road adventures. The 100Ah gives you plenty of power to power your fridge, lights and all those electrical devices your kids bring for that weekend away.


200A Discharge for 20 Minutes
Breaking down the Slimline’s 100Ah capacity further, the 200A discharge allows a high-power inverter connected to the battery output to run devices such as a 2kW coffee machine or an induction cooker for up to 20 minutes.


Inbuilt DC-DC
The integrated charging system via inbuilt DC-DC ensures optimal battery health and prevents charge mismatches, whilst also removing the need to buy an additional unit for your setup.


In-Built Battery Management System
The Slimline 100 comes with a Battery Management System in-built in the unit, performing regulation of status in the background to give you peace of mind when powering all your camping goodies.


Bolt Joint Connection
Engineers have elected to use bolted joints for electrical connections on the Slimline 100 to provide a more reliable connection for a higher discharge current. Connecting all your essentials in this orientation also allows you to control the direction of cables to reduce the overall footprint of the battery.


High-Quality LiFePO4 Cells
Safety and durability are at the forefront of development of the Slimline 100, being powered by high-quality lithium-iron phosphate cells sourced from a leading manufacturer to meet rigorous standards and obtain certification for extensive Australian and International standards.


40A 4-Stage Charging
Smart charging has also been a focus for the team, with the inbuilt 40A 4-stage charger ensures a fast, efficient, and safe charging to the internal battery cells.


Dual Input Options
Dual input options are also included to accept charge from either alternator or solar inputs. This means you can charge no matter your vehicle setup.


Selectable Input Voltage
Engineers have made input voltage on the Slimline 100 selectable, ensuring you don’t overcharge appliances with lower voltage inputs.


Fuse Window
ARB have reimagined fuse replacement to make the often tedious process as simple as possible. The Slimline 100 features an easily accessible and removable window which makes the process seamless.


Mobile App
The Slimline 100 even has its own app, allowing you to monitor battery metrics and diagnostics. Simply scan the QR code or search for the battery via the free app to get live information.


Parallel Operation
ARB have engineered the Slimline 100 to support multiple batteries connected in parallel to provide more backup power for all your adventures.
Downloads
ARB Slimline Battery - User Guide.pdf
Fitting & Installation Centres - Dudley & Bristol
Prefer professional fitting? We offer expert installation at our specialist fitting centres in Dudley (West Midlands) and Bristol. The quickest way to book is via live chat, and we’re open five days a week. While your vehicle is being fitted, you’re welcome to relax in our waiting area or explore the local area, with nearby cafés, shops and amenities within easy reach of both our Dudley and Bristol centres.
Our fitting centres offer:
- Express fitting by experienced technicians
- Friendly, knowledgeable team on hand to answer questions about your setup
- Comfortable waiting area and accessory showroom
- Free WiFi and TV
- Pet-friendly environment
- Easy access and parking
Fit at Home
This product can also be installed at home using the included fitting instructions. Alternatively, if you’re too far away from our fitting centres in Bristol or Dudley, a reputable local garage should be able to carry out the installation.
Delivery Methods
- Fast, same-day despatch on orders placed by 2:00pm (Monday to Friday)
- Fully insured and trackable shipping via specialist delivery partners
- Competitive delivery rates across all product types – from parcels to pallets
- All items packaged securely with highly protective materials
UK Offshore Delivery
Deliveries to UK offshore destinations may incur an additional charge, depending on the product type and quantity. If a delivery surcharge applies, our team will contact you promptly after your order is placed.
International Delivery
Our dedicated Export Team can arrange international shipping. Customers outside the UK can request a quote by proceeding through the checkout. We’ll then be in touch within 24 hours with a competitive shipping price.
Returns
If you’ve ordered the wrong item or are unhappy with your purchase, simply get in touch - we’ll make the returns process easy. For full details, please refer to our Returns page.

