{"product_id":"sony-dcr-pc55s-replacement-battery-74v-680mah-li-ion","title":"Sony DCR-PC55S Replacement Battery NP-FA50 7.4V 680mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSony DCR-PC55S \/ DCR-PC53 Series — 7.4V Li-ion Replacement Battery (NP-FA50)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 680mAh Li-ion replacement for the Sony NP-FA50 battery pack. It fits the DCR-PC55S, DCR-PC55ES, DCR-PC53, DCR-HC90ES, and over a dozen related MiniDV camcorders. The cell matches OEM voltage and capacity — 5.03Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDCR-PC55 and DCR-HC90 series fit:\u003c\/strong\u003e\n    These models share the NP-FA50 form factor, connector pinout, and BMS communication protocol across the range. The same 7.4V nominal rail and physical housing dimension — 75.50 × 47.00 × 7.00mm — runs through all of them. One cell fits the full group.\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 DCR-series hardware. The BMS handshake completed without error flags on both the camera body and an OEM Sony charger. Voltage held steady across the discharge curve until the low-battery cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install charge cycle on MiniDV bodies:\u003c\/strong\u003e\n    Sony's BMS on these camcorders maps the battery-remaining indicator by learning the cell's discharge curve during its first full charge inside the camera body. Run the first charge through the camera, not a third-party charger, so the indicator reads accurately from the first session.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSony NP-FA50 BMS rejecting third-party cell on first install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe DCR-PC55S and related bodies use a three-pin connector that carries both power and a data line. On first install, the camera polls the battery for authentication. If the cell arrives partially discharged, the handshake can fail — the body reads no valid response and throws a battery error. Inserting the cell and charging it fully inside the camera body, rather than externally first, gives the BMS the full handshake window it needs. After one complete in-body charge cycle, the error clears on every subsequent insert.\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\"\u003eThis happens when the camera's fuel gauge is mapping a new cell's discharge curve against the calibration stored for a worn original cell. The NP-FA50 at 680mAh has a relatively flat mid-range voltage curve — the indicator can jump between segments rather than step down smoothly. One full discharge-to-cutoff followed by a full recharge inside the camera body resets the calibration. After that single recalibration cycle, the percentage display tracks the actual state of charge correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333923962970,"sku":"BWCS-FA50-1","price":34.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43333923995738,"sku":"BWCS-FA50-2","price":39.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43333924028506,"sku":"BWCS-FA50-3","price":43.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FA50-1.webp?v=1778213575","url":"https:\/\/batteryweb.com\/products\/sony-dcr-pc55s-replacement-battery-74v-680mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}