{"product_id":"att-f160-replacement-battery-37v-800mah-li-ion","title":"AT\u0026T F160 Replacement Battery 3.7V 800mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAT\u0026amp;T F160 — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 800mAh lithium-ion battery for the AT\u0026amp;T F160 mobile phone. It replaces the original cell when the phone can no longer hold a charge or fails to power on. Dimensions are 54.29 x 33.71 x 4.43mm — measure your original before installing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eF160 platform fit:\u003c\/strong\u003e\n    The F160 uses a compact single-cell Li-ion pack at 3.7V nominal. The charge IC on this phone communicates directly with the cell through a shared ground — incorrect cell impedance will cause the charger to reject the battery or deliver erratic current, so voltage and physical tolerances both matter.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on a calibrated test rig. The BMS held cutoff correctly at both ends — no premature low-voltage lockout and no overcharge past 4.2V. Charge acceptance was stable across the full cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first installation, disable any fast-charge mode and run one complete discharge-to-charge cycle at standard current. This gives the fuel gauge IC a full reference curve against the new cell — without it, the phone's percentage readout will track the old cell's profile, not this one.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the F160 after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe F160's fuel gauge IC stores a discharge curve calibrated to the original cell's internal resistance profile. A new cell has different impedance, so the gauge misjudges remaining capacity. Under load — backlight, modem polling, or a call — voltage drops faster than the gauge predicts, and the phone shuts off before it reports zero. One full discharge cycle from 100% to automatic shutdown, followed by a full charge, resets the coulomb counter reference. After that cycle, shutdowns in the 20–30% range should stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone not powering on after the battery sat in storage\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells discharge slowly in storage. If the voltage drops below roughly 2.5V, the BMS trips a deep-discharge lockout to protect the cell from permanent damage. The phone will show nothing — no charging animation, no response to the power button. Connect the phone to a wall charger, not a USB port, and leave it for 20–30 minutes without pressing anything. The charge IC needs to push a small recovery current into the cell before the BMS re-enables the output rail. Once the voltage recovers above 3.0V, the phone will boot normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405082493018,"sku":"BWCS-ZTC88SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405082525786,"sku":"BWCS-ZTC88SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405082558554,"sku":"BWCS-ZTC88SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ZTC88SL-1.webp?v=1779369934","url":"https:\/\/batteryweb.com\/products\/att-f160-replacement-battery-37v-800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}