Intercom battery PTM-8668L adapts XPR3000.XPR7000.Dp2600.XIR-P6600.GP328D.GP33338D.LKP.DGP 8050.DGP5050. DEP550. APX2000. APX4000. DP4400. DP4810. APX2000. SRX2200. XPR7000E and other models