Before purchasing, please make sure the battery match your radio model. Replacement Part : Kenwood KNB-33, KNB-33L, KNB-33Li Compatible With: Kenwood TK-2180, TK-2180K, TK-2180K2; TK-3180, TK-3180K, TK-3180K2, TK-5210, TK-5210G, TK-5210GK, TK-5210GK2, TK-5210GK3, TK-5210GK7, TK-5210K, TK-5210K2, TK-5310, TK-5310G, TK-5310GK, TK-5310GK2, TK-5310GK3, TK-5310GK4, TK-5310GK5, TK-5310GK6, TK-5310GK7, TK-5310K, TK-5310K2 Replacement Battery.