{"product_id":"blaupunkt-ax-77-replacement-battery-6v-2100mah-ni-mh","title":"Blaupunkt AX-77 Replacement Battery 6V 2100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBlaupunkt AX-77 Series — 6V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V, 2100mAh (12.6Wh) Ni-MH replacement battery for the Blaupunkt AX-77 and compatible camera models including the AX-85, AX-90, and AX-120. It slots into the same battery compartment as the original cell and restores full camera operation. No OEM part number is published for this cell, but the voltage and form factor match the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAX-77 \/ AX-85 \/ AX-90 \/ AX-120 compatibility:\u003c\/strong\u003e\n    These Blaupunkt camera models share the same 6V Ni-MH cell format, battery bay dimensions, and connector arrangement. The BMS in each body reads the same voltage thresholds, so one replacement cell covers the full range 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 charge and discharge on the bench, monitoring BMS acceptance and voltage response under load. The cell held steady across the discharge curve with no cutoff events or authentication rejection flags.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install charge cycle:\u003c\/strong\u003e\n    On first use, run a full charge via the OEM charger or camera body before shooting. Some Blaupunkt camera BMS systems need one full charge cycle from inside the body to calibrate the battery-remaining display to the new cell's discharge curve.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping on the AX-77 display after fitting a new cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe AX-77's battery indicator maps voltage thresholds against a stored discharge curve from the original cell. A fresh Ni-MH replacement has a slightly different voltage profile at partial charge states, so the indicator can read 80% then jump to 40% within a few shots. This is a calibration issue, not a fault with the cell. Run two full charge-discharge cycles through the camera body and the indicator will re-map to the new cell's actual curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFlash not fully recycling between shots on a new Blaupunkt camera battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eFlash recycling pulls a high recharge current from the capacitor circuit immediately after each shot. On a cell that hasn't been broken in, internal resistance is slightly elevated, which slows the current available for capacitor recharge. The result is a longer-than-expected gap between flash-ready signals. After two full charge cycles, internal resistance drops and recycling speed returns to normal. If it persists after conditioning, check that the cell voltage at rest reads at least 7.2V on a multimeter after a full charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333895651418,"sku":"BWCS-NP55-1","price":35.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43333895684186,"sku":"BWCS-NP55-2","price":41.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43333895716954,"sku":"BWCS-NP55-3","price":45.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NP55-1.webp?v=1778213590","url":"https:\/\/batteryweb.com\/products\/blaupunkt-ax-77-replacement-battery-6v-2100mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}