{"product_id":"thunderobot-iger-s1-replacement-battery-152v-3050mah-li-ion","title":"Thunderobot IGER S1 Replacement Battery 15.2V 3050mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eThunderobot IGER S1 — 15.2V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 15.2V, 3050mAh (46.36Wh) Li-ion battery for the Thunderobot IGER S1 gaming laptop. It replaces the original cell when the laptop no longer holds charge off the adaptor. Voltage and form factor match the original pack exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIGER S1 platform fit:\u003c\/strong\u003e\n    The IGER S1 uses a 15.2V four-cell lithium pack with a fixed connector orientation. This replacement matches that voltage rail and connector pinout, so the BMS handshake completes and the laptop powers on without a firmware flag.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran charge and discharge cycles on this cell and logged BMS communication throughout. The protection circuit engaged correctly at low-voltage cutoff and charge termination triggered cleanly at full capacity.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration on the IGER S1:\u003c\/strong\u003e\n    After fitting, run the laptop on battery until it reaches hibernate-cutoff, then charge uninterrupted to 100%. The IGER S1's fuel gauge IC needs this full sweep to calibrate against the new cell — skipping it leaves the BIOS reporting inaccurate health or capacity figures for the first several sessions.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting poor battery health immediately after fitting this cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe IGER S1 stores battery health data in EEPROM on the original pack. When a new cell goes in, that stored data is gone and the BIOS flags the battery as degraded or unknown before any calibration has occurred. This is not a fault with the replacement cell. Run one full discharge-to-hibernate followed by a complete uninterrupted charge cycle. After that learn cycle, the BIOS reads the new cell correctly and the health warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down abruptly while showing 20–25% charge remaining\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC calibration is off after a cell swap — the percentage shown no longer maps to actual cell voltage. Under full CPU and display load, the IGER S1 draws hard enough to expose the voltage cliff before the gauge catches up. The pack hits minimum cell voltage and the BMS cuts output while the OS still shows charge remaining. Fix this by completing two full discharge-to-hibernate and charge-to-100% cycles so the fuel gauge IC relearns the new cell's voltage curve.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409537794138,"sku":"BWCS-CLN400NB-1","price":91.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409537826906,"sku":"BWCS-CLN400NB-2","price":107.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409537859674,"sku":"BWCS-CLN400NB-3","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CLN400NB-1.webp?v=1779579965","url":"https:\/\/batteryweb.com\/products\/thunderobot-iger-s1-replacement-battery-152v-3050mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}