{"product_id":"hagenuk-st9000cx-replacement-battery-36v-1200mah-ni-mh","title":"Hagenuk KT951 3.6V Cordless Phone Replacement Battery 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHagenuk ST9000CX \/ Digicell Series — 3.6V Ni-MH Replacement Battery (KT951)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V 1200mAh Ni-MH battery replacing the KT951 pack in Hagenuk cordless handsets. It fits the ST9000CX, ST9000ZX, Digicell, and Digicell CX among others. The cell chemistry and connector match the original factory specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eST9000CX and Digicell platform fit:\u003c\/strong\u003e\n    These models share the same 3.6V single-cell NiMH architecture and KT951 footprint. The connector orientation, cell count, and BMS-free low-voltage floor are identical across the range, so one pack covers all listed variants.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery on a ST9000-series handset and confirmed the base station accepted the charge contact without error. The NiMH cells reached stable capacity by cycle four, with voltage holding above 3.3V under RF transmit load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge requirement for NiMH cordless packs:\u003c\/strong\u003e\n    After fitting, seat the handset in the base and leave it for a full 16-hour slow charge before first use. NiMH cells in cordless phones need this initial slow charge to reach rated capacity — a 1–2 hour top-up will not be enough and will make the battery appear weak out of the box.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRange drops mid-call after fitting a new NiMH pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDECT handsets adjust RF transmit power based on available voltage. A fresh NiMH pack that hasn't completed conditioning cycles will sag below 3.3V under the current draw of active transmission. The base station interprets this as a weak signal rather than a battery issue, so the handset steps down its transmit power and range shrinks noticeably. Run three to five full charge-discharge cycles and the voltage sag under RF load will stabilise.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHandset stops pairing with the base after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSome Hagenuk DECT models store pairing data in volatile memory that clears when power is fully removed — which happens the moment you swap the battery. The handset comes back up without a registered base and will show no line or no signal. To fix this, hold the handset's Paging or Find button on the base for three seconds while the handset is powered on, then follow the on-screen register prompt. Pairing typically completes within 30 seconds.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43340089950298,"sku":"BWCS-HST319CL-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43340089983066,"sku":"BWCS-HST319CL-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43340090015834,"sku":"BWCS-HST319CL-3","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HST319CL-1.webp?v=1778367047","url":"https:\/\/batteryweb.com\/products\/hagenuk-st9000cx-replacement-battery-36v-1200mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}