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Ottobock B4 Powerchair

⚠ Stock varies by location — please call store to confirm availability.

The Ottobock B4 is a compact and robust rear-wheel-drive power wheelchair suitable for indoor and outdoor mobility. With configurable seating, powered positioning functions and multiple control options, the B4 can be individually fitted around the user’s mobility and support requirements.

  • Professional assessment required. Contact Coastcare Medical to arrange a trial or personalised quotation.

Please call store for availability

Compact and robust

The B4 with rear-wheel drive offers enhanced safety and comfortable damping characteristics for outdoor use while still being compact and manoeuvrable indoors. Permanent drive wheel suspension compensates for uneven surfaces and the wheelchair’s small outside dimension makes it easier to drive through narrow doorways and navigate in confined spaces.

Like all models in the B Series product line, the B4 features a modular design and offers a high level of flexibility. The available options and features for the mobility base, seating unit and control device result in a modern and customised fitting. High-quality components such as the variably adjustable seat (VAS) or the TEN° control device can also be selected.

Key Features

  • Compact and manoeuvrable design
  • Rear-wheel-drive mobility base
  • Permanent drive-wheel suspension
  • Suitable for indoor and outdoor use
  • Maximum user weight of 160 kg
  • Multiple speed and battery configurations
  • Choice of VR2 or TEN° control systems
  • Standard and specialised seating options
  • Optional attendant control
  • Alternative specialty controls available
  • Optional powered seat tilt
  • Optional powered backrest adjustment
  • Optional 350 mm seat lift
  • Optional magnetic LED lighting
  • Optional kerb-climbing assistance
  • Integrated anti-tip rollers
  • Optional luggage carrier with a 15 kg capacity
  • Available USB, 12V and 24V power connections

Configurable Seating Options

The Ottobock B4 can be fitted with several seating systems, including:

  • Standard seating
  • Variably Adjustable Seat (VAS)
  • Contoured seating packages
  • Ottobock Baxx rigid back supports
  • Custom-contoured seating solutions

Seat width, seat depth, backrest height, armrest height and lower-leg length can be configured to suit the individual user.

A professional assessment is recommended to determine the most appropriate seating, positioning and control configuration.

Optional Powered Seating Functions

Depending on the selected configuration, the B4 can be equipped with powered seating functions to support comfort, positioning, transfers and everyday independence.

Available options may include:

  • Powered seat tilt up to 45°
  • Powered backrest adjustment
  • Seat lift with up to 350 mm of elevation
  • Powered leg-support options

These functions can help the user change position throughout the day, assist with pressure management and improve access to different working or communication heights.

Technical Specifications

  • Drive configuration: Rear-wheel drive
  • Maximum user weight: 160 kg
  • Available speeds: 6 km/h, 7.2 km/h or 10 km/h
  • Maximum travel range: Up to 45 km, depending on battery selection and operating conditions
  • Overall width: 585–595 mm
  • Minimum turning radius: From 800 mm
  • Seat width: 340–560 mm
  • Seat depth: 340–580 mm
  • Seat height: 410–570 mm, depending on seating configuration
  • Backrest height: 370–550 mm
  • Armrest height: 200–400 mm
  • Lower-leg length: 150–540 mm
  • Mechanical backrest angle: -9° to +30°
  • Powered backrest angle: 0° to +30°
  • Powered seat tilt: 20° or 45°
  • Climbing ability: 7° or 12%
  • Obstacle capability: 50 mm, with optional configurations up to 85 or 90 mm
  • Maximum charging time: Approximately 12 hours
  • Chair weight: From 93.5 kg
  • Control systems: VR2 or TEN°

Specifications and available options may vary depending on the selected wheelchair configuration.

Shipping & Specifications

  • Product Weight: N/A
  • Dimensions: N/A

For more shipping details, please refer to our Shipping Policy.

Need Personalised Support?

Our friendly team can help you choose the best product based on your needs, symptoms, and available funding (NDIS, DVA, etc). Quotes and in-home trials are available in select areas.


Submit an Enquiry About This Product

Use the form below and we’ll get back to you with personalised advice and availability.





    I was blown away buy how very helpful the staff at coastcare medical equipment and hire and sales in Berwick were. It was my first visit I was looked after by a gorgeous girl by the name of Bianca she went beyond and above trying to find a moon boot in my size especially over Christmas because a lot of places ate closed however she did say she would chase it up with the other stores and get in touch with me on the same day which she did so yes I would highly recommend them particularly Bianca and I'm sure the other staff members are just as helpful. So yes if you're looking for anything in that area give this place a go. I know where I'll be going in the futture.

    Silva Tomassian Avatar Silva
    December 29, 2025

    Could not fault the service we received. Also impressed with product knowledge of team member assisting us, didn't catch her name unfortunately.

    Steve Smith Avatar Steve
    June 5, 2025

    Could not fault the service we received. Also impressed with product knowledge of team member assisting us, didn't catch her name unfortunately.

    Steve Smith Avatar Steve
    May 30, 2025

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