{"product_id":"panasonic-ag3-replacement-battery-6v-4200mah-ni-mh","title":"Panasonic AG3 Replacement Battery 6V 4200mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePanasonic AG3 \/ AGEZ Series — 6V Ni-MH 4200mAh Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V, 4200mAh Ni-MH replacement battery for Panasonic professional video cameras. It fits the AG3, AGBP15, AGEZ1U, AGEZ20, and over 135 additional Panasonic camcorder models. Use it as a direct swap for an original battery that has lost capacity or stopped holding a charge during production work.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAG3 and AGEZ platform fit:\u003c\/strong\u003e\n    These camcorders share a common 6V battery bay, connector pinout, and BMS voltage threshold. The same cell works across this range because the camera body reads charge state from voltage curve — not a digital authentication chip.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through full charge and discharge cycles on the AG3 body. The BMS accepted the cell on first install without a power cycle, and voltage stayed stable across mid-discharge where Ni-MH cells typically show a flat plateau before the final drop.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eNi-MH conditioning on first use:\u003c\/strong\u003e\n    Ni-MH chemistry benefits from a full charge delivered through the OEM charger or camera body before the first shoot. This lets the BMS map the cell's discharge curve and display an accurate battery-remaining reading on the viewfinder.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the AG3 battery indicator reads empty on a new fully charged cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003ePanasonic's AG-series cameras track remaining charge by mapping voltage to a lookup table calibrated on the original cell's discharge curve. A fresh replacement cell hasn't been through a full cycle inside the camera, so the body has no calibration reference. The indicator can show near-empty or drop suddenly mid-shoot even when the cell is healthy. One complete charge cycle run from inside the camera or OEM charger resets this.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping erratically during recording\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells have a flat mid-discharge voltage plateau — the camera reads the same voltage whether the cell is at 80% or 40% remaining. When the voltage finally begins to drop, the indicator catches up fast and the percentage jumps several steps at once. This is normal Ni-MH behaviour, not a faulty cell. If the display is erratic from the first charge, run one full cycle to 5.4V terminal voltage and recharge completely before shooting.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333904367706,"sku":"BWCS-NP66-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333904400474,"sku":"BWCS-NP66-2","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333904433242,"sku":"BWCS-NP66-3","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NP66_1.webp?v=1778213590","url":"https:\/\/batteryweb.com\/products\/panasonic-ag3-replacement-battery-6v-4200mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}