{"product_id":"plantronics-ct14-replacement-battery-24v-700mah-ni-mh","title":"Plantronics CT14 80639-01 Replacement Battery 2.4V 700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePlantronics CT14 — 2.4V Ni-MH Replacement Battery (80639-01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V, 700mAh Ni-MH replacement battery for the Plantronics CT14 DECT cordless headset. It fits the CT14 headset unit directly and restores wireless communication between the headset and its base station. OEM part numbers covered: 80639-01, 81087-01, and 81087-02.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCT14 DECT headset compatibility:\u003c\/strong\u003e\n    The CT14 runs a 2.4V cell that powers both the audio driver and the DECT radio simultaneously. These two loads share the same cell, so the battery must meet the combined draw without sagging — this pack matches the original cell format, connector, and voltage rating exactly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through the CT14 base station charge cycle and confirmed the BMS handshake completes normally. The base station accepted the new cell without error and cycled through to a full-charge indication.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle base station logging:\u003c\/strong\u003e\n    Place the headset in the base station and run a full charge cycle before taking any calls. The CT14 base logs the new cell during this first cycle — until it does, the talk-time estimate on the base will not reflect actual capacity.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station not recognising the new pack after swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe CT14 base station uses a BMS handshake to identify and begin charging a new cell. If the headset is docked and the charge indicator does not activate within a few minutes, the handshake has not completed. Remove the headset, wait 10 seconds, and re-dock it firmly — the contacts on the CT14 headset are small and misalignment is common. If the indicator still does not respond, check that the cell voltage has not dropped below the base station's detection threshold, which sits around 1.8V total for the two-cell pack.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHeadset cuts out mid-call on a new battery\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA freshly installed Ni-MH cell does not always deliver full capacity on the first few cycles — this is normal chemistry behaviour, not a fault with the pack. The DECT radio and audio driver together pull enough current to trigger a low-voltage cutoff if the cell has not yet conditioned. Run three to five full charge-and-use cycles through the base station and capacity will stabilise. If cutouts continue past five cycles, measure resting voltage at the cell terminals — it should read at or above 2.4V after a full charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428157849690,"sku":"BWCS-PCT140SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428157882458,"sku":"BWCS-PCT140SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428157915226,"sku":"BWCS-PCT140SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PCT140SL-1.webp?v=1779934278","url":"https:\/\/batteryweb.com\/products\/plantronics-ct14-replacement-battery-24v-700mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}