{"product_id":"puma-smartwatch-dw9p1-replacement-battery-38v-350mah-li-polymer","title":"Puma SmartWatch DW9P1 Replacement Battery 3.8V 350mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePuma SmartWatch DW9P1 — 3.8V Li-Polymer Replacement Battery (APP00286)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 350mAh Li-Polymer cell replaces the original APP00286 battery in the Puma SmartWatch DW9P1. It restores power to activity tracking, heart rate monitoring, notifications, and the display. Dimensions are 28.00 × 23.50 × 4.20mm — confirm clearance inside the case before fitting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDW9P1 platform fit:\u003c\/strong\u003e\n    The DW9P1 uses a compact Li-Polymer cell with a specific footprint and connector orientation tied to the watch's power management IC. This cell matches that footprint, voltage rail, and connector pin layout so the BMS handshake completes normally on power-up.\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 DW9P1 platform and confirmed the fuel gauge IC registered capacity correctly after a full charge cycle from near-zero. BMS protection tripped as expected at both low-voltage cutoff and overcharge thresholds.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap charge requirement:\u003c\/strong\u003e\n    After fitting this cell, place the watch on its charger immediately and run a full charge to 100% before use. The fuel gauge IC on this platform loses its reference point when the cell is swapped and cannot recalibrate without a complete charge cycle from near-zero.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the DW9P1 shows 0% or refuses to power on after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe DW9P1 uses a coulomb-counting fuel gauge IC that tracks charge state relative to a stored reference. When you remove the old cell, that reference is erased. The IC starts from an unknown state and often defaults to 0% or holds the watch in a protective shutdown. Placing the watch on charge immediately after fitting the new cell allows the IC to run a full calibration pass. Once charge reaches 100%, the gauge reference resets and the watch powers on and reports accurately.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eNew battery draining to empty within a single day on the DW9P1\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA 350mAh cell in continuous heart rate monitoring mode draws significantly more current than in basic step-counting mode. If the DW9P1 is set to always-on display alongside continuous HR polling, current draw can be three to four times higher than the device's standby baseline. Check the watch settings and switch HR monitoring from continuous to on-demand if multi-day life is the priority. Also confirm the display timeout is not set to always-on — that single setting is the most common cause of unexpectedly fast drain on this platform.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416152997978,"sku":"BWCS-FTL286SH-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416153030746,"sku":"BWCS-FTL286SH-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416153063514,"sku":"BWCS-FTL286SH-3","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FTL286SH-1.webp?v=1779760467","url":"https:\/\/batteryweb.com\/products\/puma-smartwatch-dw9p1-replacement-battery-38v-350mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}