{"product_id":"porsche-design-p9982-replacement-battery-37v-1800mah-li-ion","title":"Porsche Design P9982 Replacement Battery 3.7V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePorsche Design P9982 — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1800mAh Li-ion replacement battery for the Porsche Design P9982 smartphone. It slots directly into the P9982 body and restores power to a device that no longer holds a charge or fails to turn on. Capacity is rated at 6.66Wh — identical to the original cell specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eP9982 platform fit:\u003c\/strong\u003e\n    The P9982 runs a single-cell Li-ion configuration at 3.7V nominal. This cell matches that voltage rail and the connector pinout the device expects. The BMS on this phone monitors cell impedance at startup — a mismatched cell will trip a protection flag before the first boot completes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, standby draw, and screen-on load. The BMS accepted the cell without error flags on the first cycle, and voltage held steady above 3.6V under sustained display and modem load.\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 complete discharge-to-charge cycle at standard rate. This gives the fuel gauge IC time to map the new cell's discharge curve before any high-current charging protocol pushes current into an uncalibrated 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 P9982 after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA new cell has a slightly different voltage-to-capacity curve than the aged cell the fuel gauge IC was calibrated against. When the phone reads 25% remaining, the actual cell voltage may already be near 3.5V — below what the modem and display need under load. The phone shuts down not because the battery is faulty, but because the gauge is reading from the wrong curve. One full discharge cycle, draining to automatic shutdown and charging back to 100% without interruption, resets the coulomb counter and eliminates the premature cutoff.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eP9982 not powering on after the replacement battery sat in storage\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage. If the replacement cell drops below 2.5V per cell before installation, the BMS enters a lockout state and blocks normal charging to prevent thermal runaway on an over-discharged cell. The phone shows nothing on screen and does not respond to the charge cable. Connect the device to a wall adapter — not a PC port — and leave it for 20–30 minutes without pressing the power button. The BMS recovery circuit trickle-charges the cell back above 2.9V, at which point normal charging resumes and the phone will power on.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404324962394,"sku":"BWCS-BRZ100XL-1","price":37.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404324995162,"sku":"BWCS-BRZ100XL-2","price":41.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404325027930,"sku":"BWCS-BRZ100XL-3","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BRZ100XL-1.webp?v=1779369760","url":"https:\/\/batteryweb.com\/products\/porsche-design-p9982-replacement-battery-37v-1800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}