{"product_id":"breo-idream-3-ineck-replacement-battery-37v-2200mah-li-polymer","title":"Breo iDream 3 iNeck MB2300 Replacement Battery 3.7V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBreo iDream 3 iNeck — 3.7V Li-Polymer Replacement Battery (MB2300)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 2200mAh Li-Polymer battery replaces the MB2300 cell in the Breo iDream 3 iNeck wearable neck massager. It restores power to the device's electrical stimulation and massage functions when the original cell no longer holds a charge. Dimensions are 49.70 × 29.70 × 16.00mm — confirm these against your existing cell before fitting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eiDream 3 iNeck fit:\u003c\/strong\u003e\n    The MB2300 part number is specific to this wearable massager. The 3.7V nominal voltage matches the device's motor and stimulation circuit rail. The Li-Polymer form factor fits the compact housing without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the iDream 3 iNeck's combined motor and EMS load. The BMS held stable across stimulation mode transitions and did not trip on motor start draw. Capacity read within spec at full charge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePort moisture protocol:\u003c\/strong\u003e\n    After use against skin, let the charging port air out for at least 10 minutes before connecting the cable. Moisture bridging the contacts can trigger a BMS protection fault — the device will show no charge activity and appear dead, even with a healthy battery.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMassage intensity dropping before the battery indicator shows low\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe iDream 3 iNeck runs both a motor and an EMS circuit simultaneously at peak intensity. This combined load pulls more current than the fuel gauge samples at idle, so voltage can sag below the motor's minimum operating threshold while the indicator still shows partial charge. An aged or degraded cell has higher internal resistance, which amplifies this sag under load. Replacing the cell restores the low internal resistance needed to sustain both circuits at full draw without voltage dropping out.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice reads fully charged but loses power within a few uses\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDaily top-up charging — plugging in after every short session without running the battery down — causes the fuel gauge to drift from the cell's actual state of charge over time. The device reports 100% based on a stale reference point, not real capacity. The cell itself degrades faster under constant shallow cycles, accelerating capacity loss. If you see this pattern, the cell needs replacement; fitting a new MB2300 resets the cycle count and restores accurate charge readings from 3.7V nominal to the 4.2V full-charge ceiling.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415958519898,"sku":"BWCS-BRM300SL-1","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415958552666,"sku":"BWCS-BRM300SL-2","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415958585434,"sku":"BWCS-BRM300SL-3","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BRM300SL-1.webp?v=1779758582","url":"https:\/\/batteryweb.com\/products\/breo-idream-3-ineck-replacement-battery-37v-2200mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}