{"product_id":"prestigio-multiphone-5044-duo-replacement-battery-37v-1900mah-li-ion","title":"Prestigio PAP5044BA MultiPhone 5044 Duo Replacement Battery 3.7V 1900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePrestigio MultiPhone 5044 Duo — 3.7V Li-ion Replacement Battery (PAP5044BA)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1900mAh Li-ion cell replaces the original PAP5044BA battery in the Prestigio MultiPhone 5044 Duo smartphone. It fits both the MultiPhone 5044 Duo and PAP5044 DUO variants. Swap it in when the original cell no longer holds 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\u003eMultiPhone 5044 Duo and PAP5044 DUO fitment:\u003c\/strong\u003e\n    Both variants share the same 3.7V voltage rail, physical form factor, and BMS connector pinout — one cell covers both. The PAP5044BA part number is the OEM reference for each.\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 MultiPhone 5044 Duo platform. The BMS handshake completed without fault codes, and the charge IC accepted current from the first connection.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this cell, disable fast charging for one full discharge-charge cycle. The fuel gauge IC is still calibrated to the old cell's discharge curve. One unconstrained cycle lets it map the new cell before high-current charging begins.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the MultiPhone 5044 Duo\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA degraded cell loses voltage faster under modem and screen load than the fuel gauge predicts. When internal resistance climbs, cell voltage collapses below the BMS cutoff threshold before the reported percentage reaches zero. The phone interprets this as a normal shutdown, not a fault. Replacing the cell removes the high-impedance source — after one full calibration cycle, the percentage readout tracks actual charge state correctly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWrong battery percentage showing after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe MultiPhone 5044 Duo's fuel gauge IC uses a coulomb counter trained on the original cell's capacity curve. A new 1900mAh cell has a different discharge profile, so the IC reports inaccurate figures immediately after the swap. The fix is one complete discharge to auto-off followed by a full uninterrupted charge. After that cycle, the coulomb counter resets its reference and percentage accuracy returns.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404197691482,"sku":"BWCS-PME504SL-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404197724250,"sku":"BWCS-PME504SL-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404197757018,"sku":"BWCS-PME504SL-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PME504SL-1.webp?v=1779369370","url":"https:\/\/batteryweb.com\/products\/prestigio-multiphone-5044-duo-replacement-battery-37v-1900mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}