{"product_id":"kenwood-nx-200s-replacement-battery-74v-3350mah-li-ion","title":"Kenwood NX-200S KNB-33L Replacement Battery 7.4V 3350mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eKenwood NX-200S \/ NX-300S Series — 7.4V Li-ion Replacement Battery (KNB-33L)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 3350mAh Li-ion replacement battery for Kenwood NX-series two-way radios. It fits the NX-200S, NX-210, NX-300S, and NX-410, among others. OEM part numbers covered include KNB-33L, KNB-41NC, and KNB-54N.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNX-200S \/ NX-210 \/ NX-300S \/ NX-410 platform fit:\u003c\/strong\u003e\n    These models share the same 7.4V battery rail, connector footprint, and BMS handshake protocol. One pack works across the group without modification or adapter.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through full charge and PTT load cycles on NX-series hardware. The BMS handled transmit current spikes without triggering overcurrent cutoff, and the charger dock accepted the pack on first insertion.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eContact strip care on first dock insertion:\u003c\/strong\u003e\n    If the charger dock shows a fault LED on first insertion, remove the battery, wipe the gold contact strip with a dry cloth, and reseat firmly. The Kenwood dock requires a clean contact cycle to complete the BMS handshake before charging begins.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the NX-200S cuts out mid-transmission on a new battery\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eDuring PTT, the NX-200S draws a sharp current spike — often 1.5A to 2A above standby draw — as the RF amplifier fires. A new cell shipped at storage voltage (around 3.6V–3.7V per cell) has higher internal impedance than a fully cycled cell. Under that transmit spike, the BMS reads the voltage drop as an overcurrent event and trips the protection circuit. The fix is straightforward: charge the pack fully to 8.4V before the first transmission shift, and the BMS will pass the spike without cutting out.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBar indicator showing one fewer bar than expected on a new KNB-33L\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe NX-series bar indicator reads voltage thresholds — it does not track stored energy. A new pack arrives at shipping storage voltage, which sits below the top threshold, so the radio displays one bar short of full even with a freshly inserted cell. This is not a capacity fault. Run a complete charge cycle to 8.4V, let the pack rest for ten minutes off the charger, then reinsert — the indicator will display correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426201927770,"sku":"BWCS-KNB331TW-1","price":92.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426201960538,"sku":"BWCS-KNB331TW-2","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426201993306,"sku":"BWCS-KNB331TW-3","price":122.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KNB331TW-1.webp?v=1779930437","url":"https:\/\/batteryweb.com\/products\/kenwood-nx-200s-replacement-battery-74v-3350mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}