Gemäss FAQ von Philips kann der Akku nicht ausgewechselt werden (http://www.p4c.philips.com/cgi-bin...).

"If fully discharging the rechargeable battery several times does not help to restore the capacity of the battery and the time between recharging gets shorter and shorter, the battery has reached the end of its life. The rechargeable battery of these rechargeable mini vacuum cleaners cannot be replaced. "