{"product_id":"anysecu-b01-replacement-battery-37v-1700mah-li-ion","title":"Anysecu B01 B-50C Replacement Battery 3.7V 1700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAnysecu B01 \/ B02 — 3.7V Li-ion Replacement Battery (B-50C)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 1700mAh Li-ion replacement battery for the Anysecu B01 and B02 portable two-way radios. It replaces OEM part number B-50C directly. Voltage, capacity, and physical dimensions match the original pack at 52.30 × 40.00 × 10.10mm.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eB01 and B02 compatibility:\u003c\/strong\u003e\n    Both models run the same voltage rail, share the same connector pinout, and accept the same BMS handshake protocol — one pack covers either unit without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through transmit and standby loads. The BMS handled PTT-triggered current spikes without tripping into overcurrent lockout, and the charger dock accepted the pack on first insertion without a fault LED.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eContact strip care on first dock insertion:\u003c\/strong\u003e\n    If the charger shows a fault LED on first insertion, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly — the Anysecu 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 Anysecu B01 cuts out mid-transmission on a new B-50C pack\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA new Li-ion cell ships at storage voltage — typically around 3.6V to 3.7V, not a full 4.2V charge. When you press PTT, the transmit current draw spikes hard. If the cell is at storage voltage, that spike can pull the pack voltage below the BMS overcurrent threshold and trigger a momentary cutout. This is not a faulty battery. Charge the pack fully before first use, confirm dock LED turns green, then test transmit.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBar indicator showing one fewer bar than expected after fitting the B-50C\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Anysecu B01 reads battery level through simple voltage-threshold steps — each bar corresponds to a voltage bracket, not a fuel gauge calculation. A new pack fresh from storage sits near the bottom of the top bracket or just below it, so the indicator reads one bar low. This is not a capacity fault. Charge to full (dock LED green) and the bar indicator will align correctly once the cell reaches 4.1V to 4.2V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426249080922,"sku":"BWCS-NSR200TW-1","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426249113690,"sku":"BWCS-NSR200TW-2","price":56.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426249146458,"sku":"BWCS-NSR200TW-3","price":62.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NSR200TW-1.webp?v=1779930523","url":"https:\/\/batteryweb.com\/products\/anysecu-b01-replacement-battery-37v-1700mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}