RB100 Relion Lithium LiFePO4 12V 100Ah Battery

£1,123.14 Inc VAT

Guaranteed next working day delivery on orders before 1pm

This battery MUST be charged with an appropriate Lithium charger to prevent damaging the battery!

This product is a special order and lead-time is approximately 1 week from order.


Take advantage of the latest in battery technology.

The RELiON Lithium-ion RB100 LiFePO4 battery is one of our most popular batteries in our range. Longer runtime equals more recreation time with the RB100.  This 12V 100Ah deep cycle lithium battery is the perfect replacement for a group 31 AGM, Gel or lead-acid battery. Weighing only 11.9 kg it’s a lightweight alternative to lead-acid and now has improved protection with an IP67 ingress protection rating, which completely repels dust and resists water ingress for up to 30 minutes submerged at 1 meter.

The RB100 surpasses expectations by being versatile, compact and more powerful than its lead-acid counterparts. It’s the perfect combination of size and capacity to fit many applications including, RV, marine, solar energy systems and more.

Not all lithium batteries are created equal. All RELiON Batteries use the safest and most stable components, including a LiFePO4 cathode and a built-in Battery Management System (BMS). The BMS ensures a long lifetime, safe handling and high accuracy State of Charge (SOC) calculations.


  • Marine
  • Backup Power
  • Electric Vehicle
  • Live Aboard Boat
  • Floor Machines
  • Motorhome
  • Recreational Vehicles
  • AWP
  • Leisure
  • Solar

Relion RB100 DatasheetRelion RB100 Datasheet

Additional information

Weight 13.7 kg



12 Volt

Ah Capacity

100 Ah


329 mm


172 mm

Height (inc. Terminals)

214 mm


3 Years




The Go Batteries Promise

  • Next working day delivery on UK orders *
  • Minimum 12 month guarantee
  • Free telephone support
  • * Guaranteed next working day delivery on orders placed before 1pm. For International and non-standard UK deliveries, please email: sales@gobatteries.co.uk or call +44 (0)1926 400080 for delivery options and advice. We`ll always do our best to get orders to you as fast as possible.

NOTE: Delivery costs are calculated based on post code and shown at the checkout stage From £7.99 – Nationwide Delivery (Terms) * For Highlands and Islands and non-standard UK delivery, please call us on +44 (0)1926 400080 for delivery options and advice. We’ll always do our best to get orders to you as fast as possible

Free disposable gloves with all orders