Amazon.com: Replacement for Kenwood KNB-57L KNB-35L TK-2170 TK-2140 KNB-55L TK-2160 TK-3140 TK-3160 TK-3173 Battery : Health & Household
Amazon.com: 7.4V 2000mAh KNB-55L KNB-35L Li-ion Battery for Kenwood TK-3160, TK-2170, TK-3173,TK-3140, TK-2160 Two Way Radio Replacement Battery : Electronics