{"product_id":"golf-buddy-wt3-gps-watch-replacement-battery-37v-550mah-li-polymer","title":"Golf Buddy WT3 Replacement Battery 3.7V 550mAh AEE622530P6H","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGolf Buddy WT3 GPS Watch — 3.7V Li-Polymer Replacement Battery (AEE622530P6H)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 550mAh Li-Polymer cell replaces part number AEE622530P6H in the Golf Buddy WT3 GPS Watch. The WT3 is a wrist-worn golf GPS device that displays real-time yardage and course data during a round. Voltage, connector type, and physical dimensions (33.70 × 26.22 × 6.10mm) match the original cell exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWT3 GPS Watch platform fit:\u003c\/strong\u003e\n    The WT3 runs a dedicated golf GPS processor alongside a continuous course-tracking radio. Both draw from this single cell via a shared power rail — voltage tolerance and connector polarity must match the OEM spec precisely, which this cell does.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the WT3's BMS handshake, confirmed charge acceptance from the magnetic dock, and verified the fuel gauge IC registered capacity correctly after a full charge cycle from near-zero.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap charge protocol for the WT3:\u003c\/strong\u003e\n    After fitting this cell, place the watch immediately on its magnetic charger and run it to 100% before first use. The WT3's fuel gauge IC loses its capacity reference when the original cell is removed — it cannot recalibrate without one complete charge cycle from near-zero on the new cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGPS radio current spikes and what they do to a small Li-Polymer cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe WT3's GPS receiver pulls short, sharp current bursts each time it acquires or refreshes a satellite fix — this is normal GPS behaviour, but it stresses small-capacity cells more than steady draws do. A degraded original cell often struggles to hold voltage during these spikes, which the BMS reads as a low-voltage event and uses to trigger a shutdown. A fresh 550mAh cell at full charge handles these transient loads without the voltage sag that trips the cutoff. If the watch was shutting down mid-round on the old battery, this is the most likely cause.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWatch shows correct charge percentage then drops to 0% suddenly during a round\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a fuel gauge IC drift fault, not a dead cell. The WT3's gas gauge tracks remaining capacity using accumulated charge and discharge data — when a worn cell's internal resistance rises, the gauge's model drifts away from reality. The watch then reads 80% until a GPS spike causes a voltage dip the gauge wasn't predicting, and it snaps to 0% and shuts down. Fitting a new cell fixes the resistance mismatch, but the gauge still needs one full charge-to-100% cycle before its readings stabilise — charge fully before taking the watch onto the course.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416164106330,"sku":"BWCS-GFW300SH-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416164139098,"sku":"BWCS-GFW300SH-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416164171866,"sku":"BWCS-GFW300SH-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GFW300SH-1.webp?v=1779760505","url":"https:\/\/batteryweb.com\/products\/golf-buddy-wt3-gps-watch-replacement-battery-37v-550mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}