{"product_id":"hasee-f117-f2k-replacement-battery-111v-4050mah-li-polymer","title":"Hasee F117-F2k Replacement Battery 11.1V 4050mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHasee F117-F2k \/ Z7M Series — 11.1V Li-Polymer Replacement Battery (G15KN-11-16-3S1P-0)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 11.1V, 4050mAh (44.96Wh) lithium-polymer cell replaces the factory battery in the Hasee F117-F2k, Z7MD2, Z7M-i78172 D1, KP7GT, and related models. It restores portable operation after the original cell degrades or fails to hold a charge. Voltage, connector, and BMS handshake match the factory specification for this platform.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eF117-F2k \/ Z7M platform fit:\u003c\/strong\u003e\n    These models share a common 3S1P cell configuration, 11.1V nominal rail, and the same locking connector tab geometry. The BMS on each accepts the same charge termination signal, so the swap carries over without firmware conflict.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, full-load discharge, and BMS cutoff on the Z7M platform. The protection circuit triggered correctly at the low-voltage threshold, and charge termination held at 12.6V with no overcharge event.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install discharge cycle:\u003c\/strong\u003e\n    After fitting, run one full discharge down to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after a cell swap on this platform.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Hasee Z7M shuts down at 20–30% shown after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC on this platform calibrates its empty-point estimate against the original cell's discharge curve. A new cell has a different internal resistance profile, so the IC underestimates remaining capacity and triggers a shutdown well before the cell is actually depleted. This is not a fault in the replacement cell — it is a calibration mismatch. Two to three full discharge-to-hibernate and full-charge cycles will re-anchor the fuel gauge to the new cell's actual curve, and the early shutdowns will stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as \"poor\" or \"replace soon\" immediately after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe BIOS reads health data from an EEPROM embedded in the original battery pack — cycle count, capacity history, and wear percentage. When a new cell is installed, the EEPROM presents a fresh data set that the BIOS has not yet validated, and some Hasee firmware versions flag this as a fault condition rather than a new battery. Running the battery learn cycle (full discharge to hibernate cutoff, then uninterrupted charge to 100%) prompts the BIOS to re-evaluate the EEPROM data. After one or two complete cycles, the health status updates to reflect the actual cell condition. If the warning persists beyond three cycles, check BIOS version — some earlier Z7M firmware builds require an update to read third-party EEPROM data correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409612210266,"sku":"BWCS-VLX600NB-1","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409612243034,"sku":"BWCS-VLX600NB-2","price":57.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409612275802,"sku":"BWCS-VLX600NB-3","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-VLX600NB-1.webp?v=1779580234","url":"https:\/\/batteryweb.com\/products\/hasee-f117-f2k-replacement-battery-111v-4050mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}