About this replacement
Designed for Trilithic, Falcon devices. Compatible models include TR-3, TR3, 310, 315, 320, 325, 330, 335, PT2000. Replacement part numbers include SB-320, SB-320-N, SB-320-NY, 00-864-00, 5-2043, 5-2389, PS21H2-A. Key specifications: 3.6V, 2500mAh, Ni-MH.