Compatible With Ryobi 18V Tools Model: (Use the "Ctrl + F") For CID Series: CID-1802M, CID-1803L,CID-1803M, CID-182 For CDI Series: CDI-1801, CDI-1802, CDI-1802M,CDI-1803, CDI-1803M For P Series: P200, P210, P2100, P211, P220,P230, P240, P2400, P2500, P2600, P300, P301, P310, P3200, P3300,P400, P410,P420, P430, P500, P501, P510, P520, P521, P530,P540, P600, P610, P700, P710,P730,P740 For C Series: CAD-180L,CAG-180M,CAP-1801M,CCC-1801M,CCD-1801,CCG-1801M,CCS-1801/DM,CCS-1801/LM,CCS-1801D,CCW-180L,CDC-181M,CFA-180M,CFP-180FM,CFP-180S,CFP-180SM,CHI-1802M,CHP-1802M,CHV-180L,CHV-18WDM,CJS-180L,CJS-180LM,CJSP-1801QEOM,CJSP-180QEO,CJSP-180QEOM,CMD-1802,CMD-1802M,CMI-1802,CMI-1802M,CNS-1801M, CNS-180L,CP-180M,CPD-1800,CPL-180M,CRA-180M,CRO-180M,CRP-1801,CRP-1801/DM,CRP-1801D,CRS-180L,CSL-180L,CSS-1801M,CSS-180L,CST-180M,CW-1800. (NOTE: Not fit for ryobi P551, P742, P746,18v radio, lamp eg)