{"product_id":"humantechnik-infralight-dir-replacement-battery-24v-80mah-ni-mh","title":"Humantechnik InfraLight DIR Replacement Battery 2.4V 80mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHumantechnik InfraLight DIR \/ InfraLight II Series — 2.4V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V, 80mAh Ni-MH replacement cell for the Humantechnik InfraLight DIR wireless headset and related models in the InfraLight range. It restores cordless audio operation in hearing assistance and communication headsets that have lost the ability to hold a charge. Fits the InfraLight DIR, InfraLight II, InfraLight II LR, and LPU-1 among others.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInfraLight series compatibility:\u003c\/strong\u003e\n    These models share the same 2.4V cell configuration, physical housing dimensions (33.90 × 20.00 × 10.50mm), and base station charging interface. Swapping across the range works because the charge management is handled by the base unit, not an on-cell BMS.\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. The base station accepted the new cell without error and brought it to full charge without triggering a fault state. Discharge curve tracked consistently with the 80mAh rating across multiple cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use charging on InfraLight headsets:\u003c\/strong\u003e\n    Place the headset in the base station and let it complete one full uninterrupted charge cycle before taking a call. DECT headsets log the new cell during this first cycle — skipping it causes the talk-time indicator to read inaccurately until the base recalibrates.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station showing full charge but headset cuts off after short use\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA freshly installed cell arrives at storage voltage, typically around 2.2V or lower. The base station may interpret this as a charged cell after a short top-up and display a full indicator before the cell has actually completed a proper charge cycle. The headset then cuts off quickly because available capacity is a fraction of the rated 80mAh. Let the headset sit in the base undisturbed for a full charge cycle — usually several hours — before use.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHeadset cutting out mid-call on a replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe InfraLight headset draws current from two loads simultaneously: the audio driver and the 2.4GHz radio transmitter. At 80mAh, the cell operates at a low absolute capacity, so combined draw causes voltage to sag faster than either load alone would. If cut-outs happen with a new cell, the cell likely has not completed its first conditioning cycle. Run three to five full charge-discharge cycles through normal use — talk time improves as the cell reaches its rated capacity. If cut-outs continue after five cycles, check that the cell contacts in the headset housing are clean and making firm contact.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428157063258,"sku":"BWCS-AKP216SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428157096026,"sku":"BWCS-AKP216SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428157128794,"sku":"BWCS-AKP216SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AKP216SL_1.webp?v=1779934278","url":"https:\/\/batteryweb.com\/products\/humantechnik-infralight-dir-replacement-battery-24v-80mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}