About this replacement
Designed for Nippon, Denso, AUTO-ID devices. Compatible models include DS22L1-D, DS22L1-G, BHT-200, BHT-300, BHT-400, BT-20L, BHT-200BW-CE, BHT-300Q, BTH-600, BHT-600, BT20L, BHT-400Q. Replacement part numbers include 496461-0450, BT-20L, BT-20LB, 496466-1130, FBD2000. Key specifications: 3.7V, 1800mAh, Li-ion.