{"product_id":"movado-connect-2040-replacement-battery-38v-270mah-li-polymer","title":"Movado Connect 2.0\/40 Compatible Battery 3.8V 270mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMovado Connect 2.0\/40 — 3.8V Li-Polymer Replacement Battery (APP00302)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 270mAh lithium-polymer cell replaces the original battery in the Movado Connect 2.0\/40 smartwatch. It powers the display, processor, heart rate sensor, and Bluetooth radio. Dimensions are 28.60 × 23.50 × 3.70mm — confirm these against your existing cell before fitting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eConnect 2.0\/40 platform fit:\u003c\/strong\u003e\n    The 40mm Connect 2.0 uses a fixed connector orientation and a slim 3.70mm profile dictated by the case depth. This cell matches that connector and profile exactly, keeping the BMS handshake intact so the watch reports charge state correctly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the Connect 2.0\/40 platform. The BMS accepted the new cell without fault codes, and the fuel gauge IC re-referenced correctly after a full charge from near-zero following swap.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap charging protocol:\u003c\/strong\u003e\n    After fitting, place the watch on its magnetic charger immediately and charge to 100% before wearing it. The fuel gauge IC on this platform cannot calibrate its capacity reference without one complete charge cycle from near-zero after a cell swap — skipping this step causes persistent 0% or erratic percentage readings.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Connect 2.0\/40 shows 0% immediately after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Connect 2.0\/40 uses a fuel gauge IC that tracks charge state by monitoring coulombs in and out of a known reference cell. When you remove the old battery, that reference is lost entirely. The IC has no baseline for the new cell, so it defaults to or reports 0%. Placing the watch on charge immediately after reassembly and running a full charge to 100% gives the IC the reference point it needs. Do not skip this step — the percentage display will remain unreliable until that first full cycle completes.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eNew battery draining in one day instead of the expected multi-day span\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the Connect 2.0\/40, always-on display mode combined with continuous heart rate monitoring can pull enough current to flatten a 270mAh cell within a single day — this is a load issue, not a cell defect. Check the watch settings and confirm whether always-on display and continuous HR are both active simultaneously. Switching HR monitoring to on-demand and disabling always-on display reduces the sustained current draw significantly. If drain remains extreme after those changes, check whether a background app is keeping the Bluetooth radio in constant active scan mode.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416153391194,"sku":"BWCS-MDC240SH-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416153423962,"sku":"BWCS-MDC240SH-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416153456730,"sku":"BWCS-MDC240SH-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MDC240SH-1.webp?v=1779760522","url":"https:\/\/batteryweb.com\/products\/movado-connect-2040-replacement-battery-38v-270mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}