Key takeaways
- •Stairlifts run on rechargeable batteries — never mains directly
- •Typical battery life: 3–5 years
- •Lift works during power cuts
- •Replacement batteries: £80–£150
All modern stairlifts are battery-powered. The mains charges the batteries via charge points at the top and bottom of the rail. This is why your lift still works in a power cut.
How long do batteries last?
Typically 3–5 years. Heat, leaving the lift off charge for long periods, and very heavy daily use shorten battery life.
Signs your batteries need replacing
Lift starts beeping repeatedly, runs more slowly, or stops mid-stairs when fully charged. Time for new batteries.
Cost of replacement
£80–£150 fitted, depending on model. Takes about 20 minutes.
How to make batteries last
Always park the lift on a charge point (top or bottom of the rail). Don't switch the lift off at the wall.
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Book my free surveyAbout this guide. Written by the Salford Stairlifts engineering team — BHTA-approved, 10+ years fitting stairlifts across Greater Manchester. Last updated 2026.