{"product_id":"shure-rmce-bt2-replacement-battery-37v-180mah-li-polymer","title":"Shure RMCE-BT2 Replacement Battery 3.7V 180mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eShure RMCE-BT2 — 3.7V Li-Polymer Replacement Battery (AEC501730)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 180mAh lithium-polymer cell replaces the OEM battery in the Shure RMCE-BT2 Bluetooth earphone module. It restores wireless audio and Bluetooth connectivity when the original cell has degraded. Capacity matches the AEC501730 specification at 0.67Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRMCE-BT2 module compatibility:\u003c\/strong\u003e\n    The RMCE-BT2 runs a combined Bluetooth radio and audio driver circuit on a single 3.7V rail. Both draw from the same cell simultaneously, so the BMS must tolerate the brief current spike when the Bluetooth stack initialises at power-on alongside the audio codec. This cell matches that voltage rail and connector footprint exactly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through power-on and Bluetooth pairing sequences on the RMCE-BT2. The BMS accepted the new cell without a handshake error, and the module completed pairing without voltage dropout during radio initialisation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge protocol for the RMCE-BT2:\u003c\/strong\u003e\n    Connect the module to its charging cable and allow it to complete a full uninterrupted charge before the first pairing session. The RMCE-BT2 calibrates its battery indicator against the first full charge cycle — skipping this leaves the capacity gauge inaccurate from day one.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the RMCE-BT2 cuts out mid-audio on a freshly charged cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe RMCE-BT2 draws from the battery for both the Bluetooth radio and the audio driver at the same time. During high-bitrate audio or codec negotiation, the combined current pull can spike briefly above what a partially conditioned or storage-voltage cell can deliver cleanly. The BMS interprets this as an undervoltage event and disconnects the output to protect the cell. Running two or three full charge-discharge cycles brings the cell to its rated delivery capacity and the cutouts stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRMCE-BT2 showing full charge but going silent after a few tracks\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the module's charge indicator was never properly calibrated to the new cell. If the first charge cycle was interrupted or the module was used before reaching 100%, the fuel gauge anchors itself to a false full-charge reference point. The cell still has charge left when the module shuts down — the gauge is simply wrong. Fix it by charging the RMCE-BT2 uninterrupted to full (the indicator LED holds solid), then fully discharging through normal use before the next charge. After two cycles the read-out stabilises.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428109647962,"sku":"BWCS-SHT200SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428109680730,"sku":"BWCS-SHT200SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428109713498,"sku":"BWCS-SHT200SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SHT200SL-1.webp?v=1779934133","url":"https:\/\/batteryweb.com\/products\/shure-rmce-bt2-replacement-battery-37v-180mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}