Capacity: 1100mAh Li-ion Battery Fit Model: Socketmobile Sonim XP1, XP1 BT, JCB Toughphone, TP802, Sitemaster, Toughphone Tradesman, TP121 Fit battery part number: XP1-0001100 RoHS approved for toxic free. CE and ISO9001 Certificate for quality assurance. Search Tip: Hold Ctrl+F. Window pops up & type a portion of your model number and click Find Next.