{"product_id":"tele-phone-tel1215-replacement-battery-36v-2000mah-ni-mh","title":"Tele-Phone TEL1215 Replacement Battery 3.6V 2000mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTele-Phone TEL1215 \/ TEL620 \/ TEL813 \/ TEL90 — 3.6V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 2000mAh Ni-MH rechargeable battery for Tele-Phone cordless handsets. It fits the TEL1215, TEL620, TEL813, and TEL90 models. Swap it in when the original pack no longer holds a usable charge.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTEL-series handset compatibility:\u003c\/strong\u003e\n    These four models share the same voltage rail, physical cell configuration, and connector format. The base station charging circuit expects a 3.6V Ni-MH pack, and this battery matches that requirement without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge and discharge on a cordless phone test rig. The cell voltage held within spec across repeated cycles, and the handset registered a full charge state at the base after each run.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge protocol for Ni-MH cordless packs:\u003c\/strong\u003e\n    After installing, seat the handset in the base and leave it for a full 16 hours before first use. Ni-MH cells in cordless phones reach rated capacity through slow initial charging — a quick top-up will not condition the pack correctly and talk time will be noticeably short until 3–5 full cycles are completed.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRange dropping mid-call after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDECT handsets regulate transmit power, but the RF output still depends on stable voltage from the battery. A new Ni-MH pack fresh from storage has not been fully conditioned and its internal resistance is higher than normal. Under RF load, that resistance causes a voltage sag that the handset reads as a weak or low battery, which pulls back transmit power. Run 3–5 full charge and discharge cycles and the internal resistance drops — range returns to normal.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station showing no charge light after fitting new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH batteries lose charge during storage and can arrive below the minimum voltage the base station accepts before it begins charging. If the base shows no activity after placing the handset, the pack voltage may be too low to trigger the charging circuit. Remove the handset, wait 30 seconds, and re-seat it firmly — some bases require a clean reconnect to reinitiate detection. If the light still does not activate, check the handset contacts against the base pins and confirm contact is not interrupted by debris or misalignment.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339985485914,"sku":"BWCS-CPB483CL-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339985518682,"sku":"BWCS-CPB483CL-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339985551450,"sku":"BWCS-CPB483CL-3","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CPB483CL-1.webp?v=1778367001","url":"https:\/\/batteryweb.com\/products\/tele-phone-tel1215-replacement-battery-36v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}