{"product_id":"nec-versa-m300-replacement-battery-148v-4400mah-li-ion","title":"NEC Versa M300 Replacement Battery 14.8V 4400mAh PC-VP-WP44","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNEC Versa M300 \/ M500 \/ E600 — 14.8V Li-ion Replacement Battery (PC-VP-WP44)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.8V, 4400mAh (65.12Wh) Li-ion battery for the NEC Versa M300, Versa M500, and Versa E600 notebook computers. It replaces OEM part numbers PC-VP-WP44 and OP-570-75901. Fit and connector orientation match the original cell exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVersa M300, M500, and E600 compatibility:\u003c\/strong\u003e\n    All three models share the same 14.8V battery bay, connector pinout, and BMS handshake protocol — one cell covers the full platform without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell under combined CPU and display load on a Versa M300. The BMS held voltage above the low-battery cutoff threshold through full discharge, and the charge IC accepted a clean uninterrupted charge from empty to 100%.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration tip:\u003c\/strong\u003e\n    After installing, run one full discharge to the hibernate-cutoff point, 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 NEC Versa systems.\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 Versa BIOS stores battery health data in EEPROM on the old cell. When a new cell is installed, that EEPROM data is gone and the BIOS flags an unknown or degraded status. This is not a fault with the replacement cell — it is a data mismatch. Running one complete discharge-to-hibernate and then a full uninterrupted charge forces the BIOS to rewrite its health record against the new cell's actual capacity. After two to three cycles, the health indicator returns to normal.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down abruptly at 20–30% charge remaining\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the cell cannot sustain voltage under the combined draw of the CPU, display backlight, and active storage — a voltage cliff where the fuel gauge IC still reads 20–30% but the cell drops below the system cutoff threshold under load. On the Versa M300, the BIOS triggers an immediate shutdown rather than a graceful hibernate when voltage collapses faster than the gauge predicts. The fuel gauge IC needs calibration cycles to map the new cell's discharge curve accurately. Run two full discharge-to-hibernate cycles and the shutdown point will shift to the correct low percentage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410827575386,"sku":"BWCS-NM300HB-1","price":97.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43410827608154,"sku":"BWCS-NM300HB-2","price":113.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43410827640922,"sku":"BWCS-NM300HB-3","price":127.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NM300HB-big.webp?v=1779581286","url":"https:\/\/batteryweb.com\/products\/nec-versa-m300-replacement-battery-148v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}