{"product_id":"kidz-watch-pro-replacement-battery-37v-450mah-li-polymer","title":"Kidz Watch Pro AHB562828 Compatible Battery 3.7V 450mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eKidz Watch Pro — 3.7V Li-Polymer Replacement Battery (AHB562828)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 450mAh lithium-polymer cell replaces the AHB562828 battery in the Kidz Watch Pro smartwatch. It restores power to time display, activity tracking, and connectivity functions when the original cell has degraded or failed to hold a charge. Dimensions are 30.30 × 27.70 × 5.60mm — measure your existing cell before fitting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWatch Pro platform fit:\u003c\/strong\u003e\n    The AHB562828 footprint is specific to the Watch Pro chassis. Voltage rail, connector orientation, and cell dimensions must match exactly — a misaligned cell will not seat flush against the flex connector and can interrupt the charge circuit.\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 Watch Pro platform. The BMS accepted the new cell without error flags, and the fuel gauge IC registered voltage correctly after a full charge cycle from near-zero.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge calibration after swap:\u003c\/strong\u003e\n    Place the watch on its charger immediately after fitting this cell and charge to 100% before first use. The fuel gauge IC on the Watch Pro cannot set an accurate reference point without a complete charge cycle from near-zero following a cell swap — skipping this step causes the percentage readout to drift or read incorrectly for days.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Watch Pro battery drains in one day instead of several\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Watch Pro draws continuous current from the heart rate sensor, display backlight, and BLE stack running simultaneously. A degraded original cell loses usable capacity at the low end of its voltage curve, so the BMS cuts off earlier than expected. A fresh 450mAh cell restores the full discharge window. If drain remains heavy after swap, check whether always-on display mode is active — that single setting accounts for a significant share of daily draw on this platform.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWatch Pro not pairing with phone after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eRemoving the battery clears the active BLE session stored in the watch's memory. The phone retains the old pairing record, but the watch boots fresh with no matching session key. The fix is straightforward: delete the Watch Pro from your phone's Bluetooth device list, then re-initiate pairing from the watch settings menu. Do not attempt to reconnect from the phone side first — the watch must advertise before the phone searches.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416154931290,"sku":"BWCS-KWP100SL-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416154964058,"sku":"BWCS-KWP100SL-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416154996826,"sku":"BWCS-KWP100SL-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KWP100SL-1.webp?v=1779760522","url":"https:\/\/batteryweb.com\/products\/kidz-watch-pro-replacement-battery-37v-450mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}