{"product_id":"nokia-9110-replacement-battery-37v-1150mah-li-ion","title":"Nokia BLN-3 9110 Communicator Replacement Battery 3.7V 1150mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNokia 9110 \/ 9110i Communicator — 3.7V Li-ion Replacement Battery (BLN-3)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V Li-ion replacement cell rated at 1150mAh (4.26Wh), built to fit the Nokia 9110 and 9110i Communicator. The Communicator's combined phone and PDA load draws from a single cell, so a degraded original battery hits hard across all functions — calls, messaging, and data. This swap restores that capacity to factory spec.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e9110 and 9110i compatibility:\u003c\/strong\u003e\n    Both models share the same battery bay geometry, contact pin layout, and 3.7V supply rail. The BLN-3 part number covers both variants — no adapter, no wiring change required.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the 9110 platform. The BMS accepted the handshake without fault codes, and the charge IC reached termination voltage correctly without overrun.\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 full discharge down to automatic shutdown, then charge uninterrupted to 100% before normal use. The 9110's fuel gauge IC was calibrated to the original cell's discharge curve — skipping this step leaves the percentage readout unreliable from the start.\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 Nokia 9110 after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 9110 Communicator runs a combined GSM modem and PDA processor off the same cell. During active calls or data sync, the modem's transmit burst pulls current spikes that a partially discharged cell cannot sustain at voltage. When cell voltage drops below roughly 3.2V under that load, the BMS cuts output before the fuel gauge ever reaches 0%. The fix is a full calibration cycle — discharge to auto-shutoff, then a full uninterrupted charge — so the fuel gauge maps the new cell's actual voltage cliff rather than the old one.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping or freezing after installing a new BLN-3\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe 9110's fuel gauge IC stores a charge model based on the previous cell's coulomb count and internal resistance. A new cell has a different impedance profile, so the old model mismaps capacity — you'll see the percentage freeze at a number, jump several points at once, or read full charge when the cell is part-drained. This is not a fault in the replacement cell. One complete discharge-to-shutoff followed by a full charge forces the IC to rewrite its reference curve against the new cell. After that cycle, percentage readout stabilises.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409478352986,"sku":"BWCS-NKN3SL-1","price":22.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43409478385754,"sku":"BWCS-NKN3SL-2","price":25.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43409478418522,"sku":"BWCS-NKN3SL-3","price":27.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NKN3SL-big.webp?v=1779579815","url":"https:\/\/batteryweb.com\/products\/nokia-9110-replacement-battery-37v-1150mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}