{"product_id":"blackberry-dtek50-replacement-battery-38v-2200mah-li-polymer","title":"BlackBerry DTEK50 TLp026E2 Compatible Battery 3.8V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBlackBerry DTEK50 \/ Neon — 3.8V Li-Polymer Replacement Battery (TLp026E2)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 2200mAh Li-Polymer cell replaces the TLp026E2 battery in the BlackBerry DTEK50, DTEK50 LTE (STH100-1, STH100-2), and Neon. It fits devices where the original cell has degraded and no longer holds a usable charge through a normal day of use. Capacity figure is 8.36Wh — matching the OEM specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSTH100-1 and STH100-2 coverage:\u003c\/strong\u003e\n    Both DTEK50 hardware revisions use the same battery bay dimensions, connector pinout, and BMS communication protocol — one cell covers both variants without modification.\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 the DTEK50 platform and confirmed the BMS handshake completes correctly — the charge IC accepted the cell and stepped through trickle, CC, and CV phases without fault flags.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one full discharge-charge cycle at standard rate. This lets the fuel gauge IC build an accurate discharge curve against the new cell before the charge IC begins pushing higher current into an uncalibrated state of charge register.\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 DTEK50 after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff problem, not a capacity problem. The DTEK50's modem and display together draw enough current that a new cell — not yet characterized by the fuel gauge IC — can sag below the system cutoff voltage before the percentage counter reaches zero. The phone shuts down because the rail drops, not because the cell is empty. One full discharge-charge cycle at standard rate lets the coulomb counter align its model to the actual cell, and the shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eOS reporting wrong battery percentage after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe DTEK50 uses a fuel gauge IC that stores a learned discharge curve from the previous cell. After swapping to a new cell, the old curve no longer matches, so the percentage reading drifts — often reading high then dropping sharply. The fix is a full calibration cycle: charge to 100%, let the device discharge under normal use until it shuts off automatically, then charge back to 100% uninterrupted. After one complete cycle, the fuel gauge IC rewrites its model and the percentage stabilizes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392069468250,"sku":"BWCS-OTS605SL-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392069501018,"sku":"BWCS-OTS605SL-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392069533786,"sku":"BWCS-OTS605SL-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-OTS605SL-1.webp?v=1779143562","url":"https:\/\/batteryweb.com\/products\/blackberry-dtek50-replacement-battery-38v-2200mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}