Philips - Zenia, Zenia 200, Zenia Voice, Zenia 6326, 6636, 6626, 6726, CD1501B, CD1551, CD2451S, CD2452S, SE5651B, SE5652B

NiMH 650 are compatible with 550, 600, 700mAh batteries NiMH 850mAh batteries are compatible with 750 and 800mAh batteries