{"product_id":"kenwood-tk-2200-replacement-battery-72v-1800mah-ni-mh","title":"Kenwood TK-2200 Replacement Battery 7.2V 1800mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eKenwood TK-2200 \/ TK-2202 Series — 7.2V Ni-MH Replacement Battery (KNB-29N \/ KNB-30N)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.2V, 1800mAh Ni-MH battery for the Kenwood TK-2200, TK-2202, TK-2206, TK-2207, and over 86 compatible models. It replaces OEM part numbers including KNB-29N, KNB-30N, KNB-53N, and RAD0148. The pack slots directly into the radio's battery bay and communicates with the KSC-35 and KSC-31 charger docks.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTK-2200 series compatibility:\u003c\/strong\u003e\n    These models share a common 7.2V Ni-MH voltage rail, the same battery bay footprint, and identical contact geometry. The BMS handshake protocol is consistent across the TK-2200, TK-2202, TK-2206, and TK-2207 platforms, which is why a single pack covers such a wide model range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge and discharge on the KSC-35 dock and monitored the BMS across PTT transmit events. The pack held 7.2V under sustained transmit load and the BMS did not trip on repeated key-ups.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst insertion into the KSC-35 dock:\u003c\/strong\u003e\n    If the charger LED blinks fault on first insertion, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The KSC-35 platform requires a clean contact cycle to accept the new BMS handshake before it will begin charging.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the TK-2200 cuts out mid-transmission on a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003ePTT on the TK-2200 pulls a sharp current spike to drive the RF output stage. If the pack is at storage voltage — typically 6.8V to 7.0V — the BMS reads that spike as an overcurrent event and shuts the output down before the transmission completes. This is not a faulty pack. Running one full charge cycle on the KSC-35 brings the cells to nominal voltage and eliminates the BMS trip on transmit.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBar indicator shows one fewer bar than expected after fitting a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe TK-2200 uses voltage-threshold readings to drive its bar indicator — it is not a fuel gauge chip. A new pack shipped at storage voltage sits below the radio's top-bar threshold, so the display shows one or two bars even on a fresh cell. This is a voltage reading, not a capacity fault. Charge the pack fully on the KSC-35 and the indicator will step up to the correct level at full charge voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426357674074,"sku":"BWCS-KNB290TW-1","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426357706842,"sku":"BWCS-KNB290TW-2","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426357739610,"sku":"BWCS-KNB290TW-3","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KNB290TW-1.webp?v=1779930809","url":"https:\/\/batteryweb.com\/products\/kenwood-tk-2200-replacement-battery-72v-1800mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}