{"product_id":"sony-dcr-hc41-replacement-battery-74v-1300mah-li-ion","title":"Sony DCR-HC41 Replacement Battery NP-FP71D 7.4V 1300mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSony DCR-HC41 \/ DCR-DVD403 Series — 7.4V Li-ion Replacement Battery (NP-FP71D)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 1300mAh Li-ion replacement for the Sony NP-FP71D battery pack. It fits the DCR-HC41 and DCR-DVD403 MiniDV and DVD camcorder lines, along with the DCR-DVD203, DCR-HC30, and 28 additional compatible models. Voltage and connector match the original specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDCR-HC and DCR-DVD platform fit:\u003c\/strong\u003e\n    These camcorder lines share a common InfoLITHIUM battery rail and the same multi-pin connector. The BMS in each body reads cell voltage and communicates remaining capacity back to the display — this replacement carries the correct voltage profile for that handshake to work.\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 a DCR-HC41 body. The BMS accepted the cell without error flags, and the InfoLITHIUM capacity indicator tracked consistently through the discharge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use charge cycle on the DCR-HC41:\u003c\/strong\u003e\n    Charge this battery fully inside the camcorder body or using a Sony-compatible charger before your first recording session. The DCR-HC41's InfoLITHIUM system calibrates its remaining-time display against the new cell's discharge curve during that first cycle — skipping it can cause the indicator to misread capacity from the start.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSony InfoLITHIUM authentication and why the DCR-HC41 rejects unfamiliar cells\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe DCR-HC41 uses Sony's InfoLITHIUM protocol, which sends a low-current query to the battery pack before enabling the recording circuit. If the cell hasn't completed a charge cycle via a compatible charger or the camera body itself, the body may display a \"no battery\" warning even with a fully charged pack seated correctly. This is a BMS handshake issue, not a cell fault. One complete charge cycle — from low to full — inside a compatible charger resolves it in most cases. After that cycle, the body recognises the cell's response signature and enables normal operation.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage counter jumping or resetting mid-recording on the DCR-HC41\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe InfoLITHIUM display maps remaining capacity by reading the cell's real-time voltage against a stored discharge curve. A new replacement cell has a slightly different curve shape than a worn original, so early on, the indicator can jump — showing 80%, then 60%, then back to 75% within a few minutes. This is not a fault with the cell; it's the BMS recalibrating its reference points. Run two to three full charge-discharge cycles and the display stabilises. After calibration, the indicator should track smoothly down to the 7.0V low-voltage cutoff.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333814026330,"sku":"BWCS-FP71D-1","price":30.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43333814059098,"sku":"BWCS-FP71D-2","price":35.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43333814091866,"sku":"BWCS-FP71D-3","price":38.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FP71D-big.webp?v=1778213246","url":"https:\/\/batteryweb.com\/products\/sony-dcr-hc41-replacement-battery-74v-1300mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}