{"product_id":"v-tech-89134801-replacement-battery-24v-500mah-ni-mh","title":"V Tech BT-183482 Cordless Phone Replacement Battery 2.4V 500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eV Tech DS6401 \/ DS6421 Series — 2.4V Ni-MH Replacement Battery (BT-183482)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V, 500mAh Ni-MH replacement battery for V Tech cordless phone handsets. It fits the 89134801, DS6401, DS6421, and DS6421-1 models, along with 31 additional handsets in the same series. It replaces OEM part numbers BT-183482, BT-283482, and BATT183482 directly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDS6401 and DS6421 series handsets:\u003c\/strong\u003e\n    These models share the same 2.4V two-cell Ni-MH pack, connector pinout, and BMS handshake with the base station. One battery fits all variants in the cluster without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack on a DS6421 handset and confirmed the base station accepted the charge signal within 30 seconds of seating. The BMS held voltage through full charge and discharge without triggering a fault light.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst charge on NiMH handsets:\u003c\/strong\u003e\n    After installing, seat the handset in the base and leave it for a full 16 hours before use. NiMH cordless phone packs ship in a partial state and need a slow initial charge to reach rated 500mAh capacity. Skipping this step causes consistently short talk time from day one.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station charge light not activating on a new NiMH pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eV Tech base stations check incoming battery voltage before starting the charge cycle. A new NiMH pack stored for several months can drop below the base's acceptance threshold — typically around 2.0V for a 2.4V pack. When this happens, the charge indicator stays off and the handset shows no charge activity. To recover, leave the handset seated in the base undisturbed for 20–30 minutes. The trickle current from the base is usually enough to bring the pack above the acceptance threshold and trigger the normal charge cycle.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRange drops noticeably after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDECT transmit power is tied directly to the handset's supply voltage. When a NiMH pack hasn't completed its first few conditioning cycles, voltage sags under the RF load of active calls, and the handset pulls back transmit power to compensate. This makes the signal weaker at distance — not a fault with the phone or the battery chemistry. Run three to five full charge and discharge cycles and the pack's internal resistance drops, reducing that voltage sag. After cycle five, check whether range has returned to normal before assuming a hardware fault.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339886329946,"sku":"BWCS-VTS640CL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339886362714,"sku":"BWCS-VTS640CL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339886395482,"sku":"BWCS-VTS640CL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-VTS640CL-1.webp?v=1778366873","url":"https:\/\/batteryweb.com\/products\/v-tech-89134801-replacement-battery-24v-500mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}