{"product_id":"acer-aspire-p3-171-replacement-battery-74v-5250mah-li-polymer","title":"Acer Aspire P3-171 Replacement Battery AC13A3L 7.4V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAcer Aspire P3-171 \/ TravelMate X313 — 7.4V Li-Polymer Replacement Battery (AC13A3L)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 5250mAh (38.85Wh) Li-Polymer battery for the Acer Aspire P3-171 and TravelMate X313 series convertible ultrabooks. It replaces OEM part numbers AC13A3L and KT.00403.013. The ultra-slim 4.61mm cell profile matches the original pack geometry inside the P3-171's tablet-mode chassis.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eP3-171 and X313 platform fit:\u003c\/strong\u003e\n    Both the Aspire P3-171 and TravelMate X313 share the same 7.4V two-cell Li-Polymer architecture, identical connector pinout, and the same BMS handshake protocol — which is why one part number covers both lines.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell on a P3-171 unit under combined CPU and touchscreen load. The BMS held charge communication correctly, cut off at the correct low-voltage threshold, and reported state-of-charge without triggering a fault code during full charge-discharge cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap calibration on the P3-171:\u003c\/strong\u003e\n    After fitting this cell, run the laptop down to hibernate cutoff under normal use, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell's actual capacity and clears the inaccurate health warning that appears after every cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as poor immediately after replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe P3-171 stores battery health data in the EEPROM of the original pack. When a new cell is installed, the BIOS reads no accumulated cycle history and flags the battery as unknown or degraded. This is a firmware artefact — not a fault with the replacement cell. Running one complete discharge-to-hibernate followed by a full uninterrupted charge gives the BIOS enough data to update its health register. After two to three cycles the health status normalises and the warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shutting down at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC is still calibrated to the old cell's voltage curve. The IC predicts remaining capacity using voltage thresholds mapped to a worn cell — so it hits what it thinks is empty well before the new cell actually is. The fix is the same calibration cycle: discharge fully to hibernate cutoff, then charge to 100% without interruption. Repeat twice if the shutdowns persist. After calibration, the gauge tracks the new cell's curve and the cutoff moves back down to the correct low-voltage floor near 6.0V per pack.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409768710234,"sku":"BWCS-ACX313NB-1","price":77.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409768743002,"sku":"BWCS-ACX313NB-2","price":91.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409768775770,"sku":"BWCS-ACX313NB-3","price":101.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ACX313NB-1.webp?v=1779580772","url":"https:\/\/batteryweb.com\/products\/acer-aspire-p3-171-replacement-battery-74v-5250mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}