{"product_id":"schenker-xmg-p503-4ob-replacement-battery-148v-5200mah-li-ion","title":"Schenker XMG P503-4OB Replacement Battery 14.8V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSchenker XMG P503-4OB Series — 14.8V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.8V, 5200mAh (76.96Wh) Li-ion replacement battery for the Schenker XMG P503-4OB and the broader XMG P503\/P504 series. It slots into the same bay as the original cell and connects via the existing battery connector. No OEM part number is published for this cluster — compatibility is confirmed by voltage rail, physical dimensions, and BMS handshake.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eXMG P503 and P504 series fit:\u003c\/strong\u003e\n    These models share a 14.8V four-cell architecture with the same connector pinout and BMS communication protocol. The P503-4OB, P503-6AZ, P503-9IH, and P504 variants all accept this cell without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge, discharge, and BMS handshake verification. The protection circuit tripped correctly at low-voltage cutoff, and the BIOS recognised the battery without throwing an unknown-device flag.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on XMG gaming hardware:\u003c\/strong\u003e\n    After fitting, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on XMG notebooks.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eXMG P503 shutting down at 20–30% shown on the gauge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC is still calibrated to the old, degraded cell. The new cell has a steeper voltage curve at the bottom of its range, so the system hits the hardware low-voltage cutoff before the gauge reaches zero. The BIOS interprets this as a sudden shutdown, not a graceful hibernate. Run two full discharge-to-hibernate and uninterrupted charge-to-100% cycles to let the fuel gauge IC re-map against the new cell's actual voltage curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as poor or capacity as 0% after swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe BIOS reads health data from the battery's EEPROM on first contact. A new cell's EEPROM contains factory default values that don't match the old cell's learned data, so the system flags it as degraded or unreadable. This is a calibration state, not a fault with the replacement cell. Perform one complete discharge-to-hibernate followed by an uninterrupted charge to 100% — the BIOS learn cycle will rewrite the health register and the warning will clear.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409558798426,"sku":"BWCS-CLP157NB-1","price":98.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409558831194,"sku":"BWCS-CLP157NB-2","price":116.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409558863962,"sku":"BWCS-CLP157NB-3","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CLP157NB-1.webp?v=1779580013","url":"https:\/\/batteryweb.com\/products\/schenker-xmg-p503-4ob-replacement-battery-148v-5200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}