{"product_id":"vodafone-p752d-replacement-battery-37v-1000mah-li-ion","title":"Vodafone P752D Replacement Battery 3.7V 1000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVodafone P752D — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1000mAh Li-ion battery for the Vodafone P752D smartphone. It slots in when the original cell has degraded past the point of holding a usable charge. Dimensions are 51.00 x 37.00 x 5.50mm — measure your existing cell before ordering if you're unsure.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eP752D platform fit:\u003c\/strong\u003e\n    The P752D runs a single-cell Li-ion architecture at 3.7V nominal. This replacement matches that voltage rail and physical footprint, so the connector and BMS handshake proceed 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 charge and discharge on the bench. The BMS accepted the charge IC handshake cleanly and held voltage through a full discharge curve without dropping into protection cutoff prematurely.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration tip:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one complete discharge-charge cycle. This lets the fuel gauge IC build an accurate discharge curve for the new cell before fast-charge current is applied to an uncalibrated cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the P752D reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe P752D uses a fuel gauge IC that tracks charge state against a learned discharge curve from the original cell. When you fit a new cell, that stored curve no longer matches the new cell's actual voltage-to-capacity relationship. The gauge reads voltage and maps it to the old curve, so it reports incorrect percentages — often jumping or stalling at fixed numbers. One full discharge to auto-off followed by an uninterrupted charge to 100% resets the coulomb counter and recalibrates the gauge to the new cell.\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 happens when the cell cannot sustain its voltage under the combined load of the modem radio, display, and active apps. At around 20–30% state of charge, cell voltage sags below the threshold the BMS will tolerate under high current draw, and it trips the protection circuit. The gauge still shows 20–30% because it's reading resting voltage, not loaded voltage. Run the phone through two full discharge-charge cycles — the fuel gauge IC will adjust its cutoff mapping, and the cell will settle into its actual low-load voltage floor near 3.4V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405062963290,"sku":"BWCS-ZTT800SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405062996058,"sku":"BWCS-ZTT800SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405063028826,"sku":"BWCS-ZTT800SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ZTT800SL-1.webp?v=1779369899","url":"https:\/\/batteryweb.com\/products\/vodafone-p752d-replacement-battery-37v-1000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}