BSU2-50C

Reliably perform ECU updates, reprogramming tasks, software updates and other diagnostics without any problems.

When performing power hungry tasks, the 12V battery alone, does not have enough capacity to support loads for a long period of time. This is where Battery Support Unit’s step in. 

BSU2-50C enables you to perform updates and diagnostics by taking the pressure off the battery. It provides up to 50A of regulated power at 13.6V that can instantly react to voltage spikes and unexpected drains.

What makes BSU2-50C different? 

BSU2-50C is a 50A battery support unit built for JLR workshops. It provides a stable 13.4V supply at up to 50A, keeping the battery topped up while you run ECU updates, diagnostics and module programming.

It works with any 12V automotive battery, including AGM, GEL and Lithium LiFePO4. For lithium batteries, a contactor reset function brings disabled or deeply discharged LiFePO4 batteries back online.

Once the battery is charged, BSU2-50C acts as a regulated power supply. It covers accessory loads and parasitic drain, so vehicles can sit with the ignition on without the battery dropping. The output current display shows exactly what the vehicle is drawing.

Dealer Benefits

13.4V @ 50A

Hold a steady voltage during ECU updates, programming and diagnostics, protecting control modules from data loss.

Modern Vehicle Support

Support any 12V battery that enters your workshop, including AGM, GEL and Lithium LiFePO4.

Live Current Monitoring

Keep an eye on how much current is being provided to the battery with the LCD Current Monitor.

JLR Workshop Ready

Built to meet the demands of JLR workshops and has been approved by JLR.

Built in Protections

Keep batteries and users safe with built-in short-circuit and reverse-polarity protection.

UK Manufactured and Servicing

Manufactured in the UK and fully serviceable by the Rotronics team, keeping downtime and repair turnaround to a minimum.

Pricing & Availability

BSU2-50C is available to order directly through Rotronics.

BSU2-50C

£869

Frequently Asked Questions

BSU2-50C supports all 12V battery technologies including WET, AGM, GEL, Ca/Ca, Ca/Ag, EFB and Lithium LiFePO4.

When a Lithium LiFePO4 battery is highly discharged it goes into a protective state. MPL50-Li's Contactor Reset mode can reset the contactor allowing the battery to be recovered and charged. 

All of Traction's products are manufactured at their site in Devizes, UK. 

Get in touch

Let’s talk

Need any help?
Ellie, our Sales & Service Specialist, is available to help.

We can help you select the perfect charging solution to fit your business’s needs. 

Join our newsletter