{"product_id":"panasonic-lumix-dmc-gh3-replacement-battery-74v-1100mah-li-ion","title":"Panasonic DMW-BLF19 Lumix DMC-GH3 Replacement Battery 7.4V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePanasonic Lumix DMC-GH3 Series — 7.4V Li-ion Replacement Battery (DMW-BLF19)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 1100mAh Li-ion cell replaces the DMW-BLF19 and DMW-BLF19E batteries in the Panasonic Lumix DMC-GH3 mirrorless camera family. It fits the GH3, GH3A, GH3AGK, and GH3GK, among others. Voltage and chemistry match OEM spec exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGH3 series compatibility:\u003c\/strong\u003e\n    All models in this lineup share the same battery compartment geometry, 7.4V voltage rail, and DMW-BLF19 connector pinout. The BMS on each body reads the same handshake signal, so one cell covers the entire range.\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 a GH3 body. The BMS accepted the cell without error flags, and the battery-remaining indicator tracked correctly after one full charge cycle completed inside the camera body.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use charge cycle on GH3:\u003c\/strong\u003e\n    Charge this cell fully inside the GH3 body or OEM charger before your first shoot. The GH3 BMS maps its battery-percentage display to a discharge curve it calibrates on that first cycle — skipping it causes the indicator to read inaccurately throughout the cell's life.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the GH3 battery percentage jumps erratically with a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe GH3 uses a voltage-threshold method to estimate remaining charge. A new cell has a slightly different discharge curve slope compared to a worn OEM battery the camera has adapted to. Until the BMS completes one full charge-discharge cycle with the new cell, the thresholds don't align and the percentage reading can jump — dropping suddenly from 60% to 20%, or stalling near full. One complete cycle from 100% to near-empty resolves this. After that, the indicator tracks consistently.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eShot count dropping sharply during sustained 4K video on the GH3\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003e4K recording on the GH3 draws simultaneously from the sensor, image processor, in-body stabilisation, and the EVF or rear LCD — combined current draw is significantly higher than still shooting. A 1100mAh cell under that combined load will reach the BMS low-voltage cutoff faster than spec shot counts suggest, because those counts are based on CIPA still-photo standards. If the camera cuts out during a video session, check that the cell is reading above 7.0V before starting a long clip. For extended video work, carry a second cell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333763661914,"sku":"BWCS-PLF190MC-1","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333763694682,"sku":"BWCS-PLF190MC-2","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333763727450,"sku":"BWCS-PLF190MC-3","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PLF190MC-1.webp?v=1778213083","url":"https:\/\/batteryweb.com\/products\/panasonic-lumix-dmc-gh3-replacement-battery-74v-1100mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}