{"product_id":"grundig-46405-replacement-battery-6v-2100mah-ni-mh","title":"Grundig 46405 Camera Replacement Battery 6V 2100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGrundig 46405 \/ 46406 \/ 46407 Series — 6V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 6V 2100mAh Ni-MH cell replaces the original battery in Grundig camera models 46405, 46406, 46407, BP-8-1, and over 70 additional compatible bodies. It matches the original voltage rail and physical footprint. Capacity is 2100mAh (12.6Wh), sourced to OEM specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e46405 \/ 46406 \/ 46407 platform fit:\u003c\/strong\u003e\n    These three Grundig camera bodies share the same battery bay dimensions, 6V nominal voltage rail, and BMS charge handshake protocol — which is why one cell covers all three. The connector orientation and contact spacing are identical across the group.\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 a Grundig camera body and confirmed the BMS accepted the cell without error flags. The charge termination delta-V cutoff triggered correctly, and cell temperature stayed within normal limits throughout the cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle BMS acceptance on Grundig bodies:\u003c\/strong\u003e\n    Complete one full charge cycle through the camera body or OEM charger before your first shoot. Some Grundig BMS systems will not display accurate battery-remaining percentages until the camera has mapped the new cell's discharge curve through at least one complete cycle.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDead battery indicator showing on a partially charged replacement cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eGrundig camera bodies read battery state by mapping voltage thresholds against a stored discharge curve from the original cell. A fresh Ni-MH replacement has a slightly flatter discharge curve than an aged OEM cell, so the camera's threshold logic misreads the voltage and triggers a low-battery warning early. This is a calibration mismatch, not a fault with the cell. Run one complete charge-discharge cycle through the camera body and the indicator will track correctly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping erratically on the camera display\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eErratic percentage readouts happen when the camera's voltage-to-percentage lookup table doesn't yet match the new cell's discharge profile. Ni-MH cells have a flatter mid-range voltage curve than the table expects on first use, so the indicator skips between readings as voltage fluctuates under load. This is not a sign of a faulty cell. Charge the battery fully — to a resting voltage of approximately 7.2V across all six cells — then discharge through normal use once, and the display will stabilise.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333895225434,"sku":"BWCS-NP55-1","price":35.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43333895258202,"sku":"BWCS-NP55-2","price":41.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43333895290970,"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\/grundig-46405-replacement-battery-6v-2100mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}