{"product_id":"motorola-nextel-i1000-replacement-battery-37v-1150mah-li-ion","title":"Motorola Nextel i1000 Compatible Battery 3.7V 1150mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMotorola Nextel i1000 \/ i2000 — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1150mAh Li-ion cell built to fit the Motorola Nextel i1000 and i2000 push-to-talk mobile phones. Both devices share the same battery bay geometry and voltage rail, so one cell covers the pair. Capacity figure is 1150mAh (4.26Wh) — use that number, not anything printed on an aging original pack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ei1000 and i2000 shared battery platform:\u003c\/strong\u003e\n    Both Nextel handsets run off the same 3.7V single-cell architecture with an identical connector pinout and BMS handshake. Swapping between models requires no adapter or modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge on the i1000 platform. The BMS accepted charge current cleanly, reported cell state correctly to the host, and held voltage under PTT transmission load without tripping protection.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After installation, run one complete discharge to auto-off followed by a full uninterrupted charge before enabling any fast-charge mode. This lets the fuel gauge IC map the new cell's discharge curve and prevents erratic percentage readings during normal use.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the i1000 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe i1000 uses a coulomb-counter-based fuel gauge IC that stores a discharge curve calibrated to the original cell's impedance profile. A new cell has a different internal resistance, so the stored curve no longer matches actual cell behaviour. The gauge reads state-of-charge against the old map and reports numbers that drift from reality — often showing full charge then dropping suddenly. One complete discharge-to-cutoff followed by a full charge resets the reference and restores accurate percentage display.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% remaining on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff failure, not a capacity problem. Under peak load — PTT transmission or screen backlight — the cell voltage sags faster than the fuel gauge predicts, crossing the BMS undervoltage cutoff threshold while the display still shows charge remaining. It happens most on an uncalibrated gauge reading from a stale curve. Run the phone down to auto-off once, charge fully to 4.2V, and the gauge recalibrates its cutoff prediction against the actual cell curve.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409510400090,"sku":"BWCS-MOI1000SL-1","price":22.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43409510432858,"sku":"BWCS-MOI1000SL-2","price":25.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43409510465626,"sku":"BWCS-MOI1000SL-3","price":27.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MOI1000SL-big.webp?v=1779579852","url":"https:\/\/batteryweb.com\/products\/motorola-nextel-i1000-replacement-battery-37v-1150mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}