{"product_id":"blackberry-torch-replacement-battery-37v-1200mah-li-ion","title":"F-S1 BlackBerry Torch Replacement Battery 3.7V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBlackBerry Torch 9800 \/ Torch 2 9810 — 3.7V Li-ion Replacement Battery (F-S1 \/ BAT-26483-003)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1200mAh Li-ion replacement cell for the BlackBerry Torch 9800 and Torch 2 9810 smartphones. It uses OEM part numbers F-S1 and BAT-26483-003. The cell fits the slide-form Torch body and restores full board power to the touchscreen, keyboard, and radio stack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTorch 9800 and 9810 fitment:\u003c\/strong\u003e\n    Both Torch models share the same battery bay dimensions and connector pinout. The F-S1 cell services both variants — the voltage rail and BMS handshake are identical across the 9800 and 9810 board revisions.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell on a Torch 9810 under mixed screen-on and radio-active load. The BMS held a stable voltage floor and cut off cleanly at the low-voltage threshold without triggering a hard lockout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this cell, run one complete discharge down to auto-shutdown, then charge uninterrupted to 100% before resuming normal use. The Torch fuel gauge IC is calibrated against the old cell's discharge curve — one full cycle resets the coulomb counter against the new cell's actual capacity.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Torch 9810 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Torch uses a fuel gauge IC that tracks charge by counting coulombs against a stored discharge curve from the original cell. A new cell has a different internal resistance and a slightly different voltage-to-capacity profile. Until the IC runs a full discharge-charge cycle with the new cell, it interpolates percentage from stale data. The result is percentage jumps, early low-battery warnings, or a reading that freezes near 50%. One uninterrupted full cycle corrects the stored curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff problem, not a capacity problem. When the Torch screen and radio stack draw peak current simultaneously, a cell with any elevated internal resistance drops voltage sharply under load. If the instantaneous voltage dips below the BMS cutoff — typically around 3.0V — the board shuts down even though the resting charge reads 20–30%. Let the phone sit for two minutes after shutdown; if it reboots and shows charge remaining, the cell is dropping under load rather than being genuinely empty. A fresh cell with low internal resistance eliminates the sag.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405043171418,"sku":"BWCS-BR9810SL-1","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405043204186,"sku":"BWCS-BR9810SL-2","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405043236954,"sku":"BWCS-BR9810SL-3","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BR9810SL-1.webp?v=1779369840","url":"https:\/\/batteryweb.com\/products\/blackberry-torch-replacement-battery-37v-1200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}