{"product_id":"advent-4213-replacement-battery-111v-6600mah-li-ion","title":"Advent 4213 Replacement Battery 11.1V 6600mAh G10-3S3600-S1A1","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAdvent 4213 — 11.1V Li-ion Replacement Battery (G10-3S3600-S1A1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 11.1V, 6600mAh Li-ion battery replaces the original cell in the Advent 4213 notebook. It matches the OEM voltage, connector, and BMS handshake so the laptop powers on and charges normally. Capacity is rated at 73.26Wh — identical to the factory specification for this model.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAdvent 4213 fitment:\u003c\/strong\u003e\n    The 4213 uses a three-series, three-parallel cell arrangement (3S3P) that fixes both the voltage rail at 11.1V and the physical connector pinout. This replacement matches that exact configuration, so the BMS handshake completes on first boot without firmware errors.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, discharge, and a full CPU-plus-display load test. The BMS held the charge cutoff correctly at 12.6V and the discharge cutoff fired cleanly before cell damage voltage — no mid-session shutdowns during testing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation calibration on the 4213:\u003c\/strong\u003e\n    Run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle on the 4213 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\"\u003eWhy the Advent 4213 shuts down at 20–30% remaining after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC inside the 4213 stores discharge curve data calibrated to the old cell. When a new cell goes in, the IC misreads the voltage slope and triggers a system shutdown well before the actual cell is depleted. This is not a battery fault — it is a calibration mismatch. Run two to three full discharge-to-hibernate then uninterrupted charge cycles. After that, the fuel gauge re-maps to the new cell's curve and the shutdown at 20–30% stops.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reports battery health as \"poor\" or \"replace soon\" immediately after fitting a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe BIOS reads health data from the battery's EEPROM, which still carries the wear flags written by the old cell. The new cell's EEPROM ships with different cycle-count and state-of-health values than the BIOS expects, triggering the warning. Perform the battery learn cycle: discharge fully to hibernate, then charge to 100% without interruption. This prompts the BIOS to re-evaluate the cell and clear the health flag — confirm in BIOS under the battery status screen after the cycle completes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410827182170,"sku":"BWCS-ADG10HB-1","price":135.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43410827214938,"sku":"BWCS-ADG10HB-2","price":155.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43410827247706,"sku":"BWCS-ADG10HB-3","price":171.99,"currency_code":"USD","in_stock":false}],"url":"https:\/\/batteryweb.com\/products\/advent-4213-replacement-battery-111v-6600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}