{"product_id":"siemens-fa-277-replacement-battery-6v-4200mah-ni-mh","title":"Siemens FA-277 Replacement Battery 6V 4200mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSiemens FA-277 \/ FA-292 Series — 6V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V 4200mAh Ni-MH replacement battery for Siemens digital cameras including the FA-277, FA-278, FA-292, and FA-294. It matches the original cell format in voltage and chemistry, so the camera body accepts it without hardware modification. Capacity is 25.2Wh, sourced from product data — not estimated from third-party listings.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFA-277 \/ FA-278 \/ FA-292 \/ FA-294 compatibility:\u003c\/strong\u003e\n    These models share the same 6V battery bay, connector pinout, and BMS voltage thresholds. A single cell format covers all four — no adapter or wiring change needed.\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 compatible hardware. The BMS accepted the cell without rejection flags, and the charge termination cut off cleanly at full capacity without overrun.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install charge cycle:\u003c\/strong\u003e\n    Insert the battery and run a full charge inside the camera body or OEM charger before your first shoot. Some Siemens camera BMS units require one in-body charge cycle to map the new cell's discharge curve before the battery-remaining indicator reads accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera showing dead battery indicator on a partially charged replacement cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells have a flatter discharge curve than lithium chemistries. The camera's fuel gauge is calibrated to voltage thresholds — if the BMS hasn't mapped the new cell yet, it reads the resting voltage as lower than the actual state of charge. This triggers a false low-battery warning even when the cell holds a usable charge. One full in-body charge cycle recalibrates the mapping and clears the false indicator.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping erratically on the display mid-shoot\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the camera's voltage-threshold indicator is still referencing discharge curve data from a depleted original cell. The replacement cell's curve doesn't match the stored profile, so the displayed percentage skips between levels rather than stepping down smoothly. It's a calibration issue, not a cell fault. Fully discharge the battery in-camera, then charge it to 100% via the OEM charger — one complete cycle usually re-anchors the percentage display to the correct curve.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333884379226,"sku":"BWCS-PDHV40-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333884411994,"sku":"BWCS-PDHV40-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333884444762,"sku":"BWCS-PDHV40-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PDHV40-1.webp?v=1778213554","url":"https:\/\/batteryweb.com\/products\/siemens-fa-277-replacement-battery-6v-4200mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}