{"product_id":"funkwerk-fc1-replacement-battery-24v-600mah-ni-mh","title":"Funkwerk FC1 Cordless Phone Ni-MH Compatible Battery 2.4V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFunkwerk FC1 \/ FC4 — 2.4V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V, 600mAh Ni-MH replacement battery for the Funkwerk FC1 and FC4 cordless DECT handsets. It fits directly into the handset battery compartment and restores power to the phone without replacing the entire unit. Capacity figure is taken from product data: 600mAh (1.44Wh).\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFC1 and FC4 compatibility:\u003c\/strong\u003e\n    Both models use the same 2.4V two-cell Ni-MH pack with matching physical dimensions (35.80 × 33.50 × 7.00mm) and connector orientation. The base station charges through a contact pad that supplies a fixed trickle current matched to this chemistry and voltage — no pairing or BMS handshake required.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack on a cordless phone base station simulator set to standard Ni-MH trickle charge. Voltage rose steadily across the first three cycles with no thermal spike, and the cell reached rated capacity by cycle four without triggering any overtemperature cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst charge on a new Ni-MH cordless pack:\u003c\/strong\u003e\n    Place the handset in the base station for a full 16 hours before the first use. Ni-MH cells shipped in storage discharge to a reduced state. A full slow charge on the first cycle sets the chemical baseline — skipping this cuts into the capacity the battery can deliver from that point forward.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTalk time shorter than the original battery after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells leave storage partially discharged and need three to five full charge-discharge cycles before they deliver rated capacity. On the first cycle, available capacity can be 20–30% below the 600mAh spec. Each subsequent full cycle conditions the electrolyte and recovers capacity. Run the handset until it drops to low-battery indication, return it to the base for a full charge, and repeat — by cycle five, capacity stabilises at rated output.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station not registering a charge on a freshly installed pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eCordless phone bases use a voltage-detect circuit to confirm a battery is present before initiating the charge cycle. A Ni-MH pack that has been in storage for several months can drop below the detection threshold — typically around 2.0V for a 2.4V pack. The base sees this as an open circuit rather than a discharged battery and shows no charge activity or an error light. To recover it, briefly connect the pack to a Ni-MH charger at a low rate (50–100mA) for 15–20 minutes to bring voltage above 2.2V, then reseat the handset in the base and the charge cycle should initiate normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339961729114,"sku":"BWCS-AYD3CL-1","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339961761882,"sku":"BWCS-AYD3CL-2","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339961794650,"sku":"BWCS-AYD3CL-3","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AYD3CL-1.webp?v=1778366983","url":"https:\/\/batteryweb.com\/products\/funkwerk-fc1-replacement-battery-24v-600mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}