{"product_id":"sony-hdr-tg1-replacement-battery-74v-1300mah-li-ion","title":"Sony NP-FV70 Replacement Battery 7.4V 1300mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSony HDR-TG1 \/ HDR-TG5 Series — 7.4V Li-ion Replacement Battery (NP-FV70)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 1300mAh Li-ion replacement battery carrying Sony OEM part number NP-FV70. It fits a range of Sony Handycam camcorders and compact cameras, including the HDR-TG1, HDR-TG3E, HDR-TG5, and DSC-HX1. The battery slots into the same compartment as the original and connects via the same multi-pin contact array.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHDR-TG and DSC-HX platform fit:\u003c\/strong\u003e\n    These models share the NP-FV series battery form factor, voltage rail, and BMS handshake protocol. Sony standardised the InfoLITHIUM communication across this generation, so one part number covers the full cluster without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the HDR-TG1 body. The BMS accepted the InfoLITHIUM handshake on the second charge cycle, battery percentage reporting stabilised, and the protection circuit held the discharge floor at the expected 6.0V cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eInfoLITHIUM initialisation tip:\u003c\/strong\u003e\n    On the HDR-TG series, run the first charge cycle inside the camera body — not a third-party external charger. The body's charging circuit sends the initialisation signal the BMS needs to begin accurate charge-remaining communication with the display.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the HDR-TG1 rejects a new NP-FV70 on first install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSony's InfoLITHIUM system is a two-way communication protocol, not just a voltage rail. When a new cell is installed, the camera body expects to exchange charge-state data before it trusts the battery's reported level. If that handshake hasn't completed — typically because the battery arrived partially discharged from storage — the camera may display a blinking battery icon or shut down immediately. Charging the cell inside the camera body rather than an external charger triggers the initialisation sequence. After one full charge cycle in-body, the camera accepts the cell and percentage reporting becomes accurate.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping erratically mid-recording on the DSC-HX1\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe DSC-HX1 maps its battery indicator to a discharge curve calibrated for the original OEM cell. A replacement cell with a slightly different discharge curve can cause the indicator to jump — dropping from 60% to 20% without warning, or briefly reading higher after the camera sits idle. This is a display calibration issue, not a fault with the cell itself. Running two to three full charge-discharge cycles in the camera body allows the BMS to re-map the indicator to the new cell's actual curve. After conditioning, the display should track steadily from 7.4V full charge down to the 6.0V cutoff floor.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333811830874,"sku":"BWCS-FV70T-1","price":37.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43333811863642,"sku":"BWCS-FV70T-2","price":43.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43333811896410,"sku":"BWCS-FV70T-3","price":47.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FV70T-big.webp?v=1778213246","url":"https:\/\/batteryweb.com\/products\/sony-hdr-tg1-replacement-battery-74v-1300mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}