About this replacement
Designed for JCB, Socketmobile, Sonim devices. Compatible models include Toughphone, Sitemaster, Toughphone Sitemaster TP803, TP803, Toughphone Sitemaster 3G, Sonim XP1, Sonim XP1 BT, sonim XP3 Enduro, XP3 Quest, XP1, XP1 BT. Replacement part numbers include XP1-0001100. Key specifications: 3.7V, 1100mAh, Li-ion.