How long do rechargeable lamp batteries last before needing replacement?

Typically 3-5 years or 500-1000 charge cycles. After that, capacity diminishes. Most budget lamps don't offer replaceable batteries, making them effectively disposable at that point.

Can rechargeable desk lamps match wired lamp brightness?

Generally no. Wired lamps can deliver 500-1000+ lumens continuously. Rechargeable lamps typically max out at 300-500 lumens to preserve battery life.

Best Rechargeable Desk Lamps 2026