The battery replacement of Panasonic RZ-S500W True Wireless Earphone may destruct earphone’s appearance. Anyway here is the guide on how to replace its internal battery.

The first step to replace the battery is to cut the earphone off.

Open the earphone back cover and reveal the battery

Pull the battery off from the housing

Desoldering the battery from earphone’s mainboard

Soldering the new battery

Follow us on Wechat to see more battery repair guides.