what is group 24 wheelchair battery?

A Group 24 wheelchair battery refers to a specific size classification of a deep-cycle battery commonly used in electric wheelchairs, scooters, and mobility devices. The "Group 24" designation is defined by the Battery Council International (BCI) and indicates the battery's physical dimensions, not its chemistry or specific power.

Group 24 Battery Specifications

• BCI Group Size: 24

• Typical Dimensions (L×W×H):

  • 10.25" x 6.81" x 8.88"

  • (260 mm x 173 mm x 225 mm)

• Voltage: Usually 12V

• Capacity: Often 70–85Ah (Amp-hours), deep-cycle

• Weight: ~50–55 lbs (22–25 kg)

• Terminal Type: Varies – often top post or threaded

Common Types

• Sealed Lead Acid (SLA):

  • AGM (Absorbent Glass Mat)

  • Gel

• Lithium Iron Phosphate (LiFePO₄):

  • Lightweight and long lifespan, but often more expensive

Why Group 24 Batteries Are Used in Wheelchairs

• Provide sufficient amp-hour capacity for long runtimes

• Compact size fits standard wheelchair battery compartments

• Offer deep discharge cycles suited for mobility needs

• Available in maintenance-free options (AGM/Gel/Lithium)

Compatibility

If you're replacing a wheelchair battery, make sure:

• The new battery is Group 24

• The voltage and connectors match

• It fits your device's battery tray and wiring layout

Would you like recommendations for the best Group 24 wheelchair batteries, including lithium options?