vintrons 750mAh Battery For NETLINK i640, Please ensure both model and battery part number are matched with your device. - Compatible Model: ALCATEL IPTouch 600, Mobile IPTouch 600, AVAYA 3626, BPX100, NETLINK i640, NORTEL NTTQ5010, NTTQ5050, WLAN 2211, SPECTRALINK BPX100, I640, Polycom PTX150, PTX110, PTX130A, PTX151, RNP2400, SL650, WTS400, - Compatible Battery Part Number: ALCATEL 38BN78108AAXX00, AVAYA 3410, 3420, 3606, 700245509, HBPX100-M, PTS360, SK37H1-D, NORTEL HBPX100-M, SK37H1-D, SPECTRALINK HBPX100-M, SK37H1-D, - RoHS approved for toxic free. - CE and ISO9001 Certificate for quality assurance.