How long do power wheelchair batteries last?

The lifespan of power wheelchair batteries depends on the battery type, usage patterns, maintenance, and quality. Here’s a breakdown:

1. Lifespan in Years

• Sealed Lead Acid (SLA) batteries: Typically last 1-2 years with proper care.
• Lithium-ion (LiFePO4) batteries: Often last 3-5 years or more, depending on usage and maintenance.

2. Charge Cycles

• SLA batteries generally last 200–300 charge cycles.
• LiFePO4 batteries can last 1,000–3,000 charge cycles, making them more durable in the long run.

3. Daily Usage Duration

• A fully charged power wheelchair battery typically provides 8-20 miles of travel, depending on the wheelchair's efficiency, terrain, and weight load.

4. Maintenance Tips for Longevity

• Charge after each use: Avoid letting batteries completely discharge.
• Store properly: Keep in a cool, dry environment.
• Periodic checks: Ensure proper connections and clean terminals.
• Use the right charger: Match the charger to your battery type to avoid damage.

Switching to lithium-ion batteries is often a good choice for longer-lasting performance and reduced maintenance.