{"product_id":"t-mobile-ville-replacement-battery-37v-1650mah-li-polymer","title":"T-Mobile Ville PJ40110 Compatible Battery 3.7V 1650mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eT-Mobile HTC Ville (PJ40110) — 3.7V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1650mAh Li-Polymer replacement battery for the T-Mobile HTC Ville smartphone. It fits the Ville hardware directly, matching the PJ40110 cell specification. Install it when the original cell can no longer hold a full charge or the phone shuts down unexpectedly under load.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVille and PJ40110 fitment:\u003c\/strong\u003e\n    Both the Ville and its PJ40110 cell designation share the same connector pinout, PCM layout, and 3.7V nominal voltage rail. The physical dimensions — 60.20 x 54.20 x 4.30mm — match the battery bay without modification. No adapter or rewiring needed.\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 Ville platform. The BMS handshake completed correctly, charge IC accepted the cell, and voltage held steady across display-on and modem-active load states.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first cycle:\u003c\/strong\u003e\n    On first use after installation, run the phone to near-empty before charging fully. This lets the coulomb counter recalibrate against the new cell's actual discharge curve — skipping this step causes the OS to read incorrect percentages for the first several days.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Ville reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe HTC Ville uses a fuel gauge IC that builds its charge model against the previous cell's impedance and discharge curve. When a new cell goes in, that model is stale. The OS reads a percentage derived from outdated coulomb counter data, so the number on screen drifts from actual capacity. One complete discharge-to-charge cycle forces the IC to rewrite its reference curve against the new cell. After that cycle, percentage readings stabilise.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff problem, not a capacity problem. Under high-draw states — modem active, screen at full brightness — the cell voltage drops sharply below the BMS cutoff threshold before the fuel gauge reaches 0%. The phone treats this as a hard undervoltage event and cuts power. Charge the phone fully, then run one complete discharge cycle to let the fuel gauge IC remap the voltage-to-percentage relationship for this cell. After calibration, the shutdown point should shift back toward 5–8%.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404327944282,"sku":"BWCS-HTZ560SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404327977050,"sku":"BWCS-HTZ560SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404328009818,"sku":"BWCS-HTZ560SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HTZ560SL-1.webp?v=1779369761","url":"https:\/\/batteryweb.com\/products\/t-mobile-ville-replacement-battery-37v-1650mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}