{"product_id":"astak-action-pro-3-replacement-battery-37v-900mah-li-ion","title":"Astak Action Pro 3 Replacement Battery 3.7V 900mAh 752836","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAstak Action Pro 3 \/ CM-7500 — 3.7V Li-ion Replacement Battery (752836)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 900mAh Li-ion replacement battery for the Astak Action Pro 3 and CM-7500 action cameras. Part number 752836 matches the OEM cell specification. Swap it in when the original cell no longer holds a usable charge between recording sessions.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAction Pro 3 and CM-7500 compatibility:\u003c\/strong\u003e\n    Both models share the same battery bay dimensions and 3.7V single-cell Li-ion voltage rail. The 752836 part number covers both. The connector orientation and BMS handshake profile are identical across the two.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the Action Pro 3 body. The BMS accepted the cell without fault flags, and voltage under recording load held within expected range for a 900mAh cell.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle initialisation on the Action Pro 3:\u003c\/strong\u003e\n    Charge this battery fully inside the camera body or OEM charger before your first recording session. Some compact action camera BMS controllers need one complete in-body charge cycle to map the new cell's discharge curve accurately for the battery indicator.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping on the Action Pro 3 display after fitting a new cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Action Pro 3 maps its battery indicator to a fixed voltage-threshold table calibrated to the original cell's discharge curve. A fresh replacement cell discharges on a slightly different curve until the BMS has logged a full cycle. This causes the indicator to skip steps or drop suddenly — the cell itself is fine. Run one complete charge from empty to full inside the camera body, and the display will stabilise to a more accurate readout.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAction Pro 3 showing a dead-battery icon on a partially charged replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the camera's BMS reads the resting voltage of a new or stored cell and flags it as depleted before checking load voltage. A cell that has been in storage can sit below the camera's minimum acceptance threshold — typically around 3.0V on this platform. Connect the battery to an OEM-compatible charger externally first and bring it up to at least 3.6V. Once voltage is above the acceptance window, insert it into the camera and it will register correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333751177306,"sku":"BWCS-ASP300SL-1","price":23.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43333751210074,"sku":"BWCS-ASP300SL-2","price":26.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43333751242842,"sku":"BWCS-ASP300SL-3","price":28.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ASP300SL-1.webp?v=1778213067","url":"https:\/\/batteryweb.com\/products\/astak-action-pro-3-replacement-battery-37v-900mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}