{"product_id":"panasonic-hhr-p505-replacement-battery-36v-700mah-ni-mh","title":"Panasonic HHR-P505 Cordless Phone Replacement Battery 3.6V 700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePanasonic HHR-P505 — 3.6V Ni-MH Replacement Battery (HHR-P505)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 700mAh Ni-MH battery pack for the Panasonic HHR-P505 and compatible cordless phone handsets. It fits a wide range of Panasonic DECT models including the KX-FPC135, KX-FPC141, and KC-TC917HSB. Match your OEM part number against P-P501, HHR-P501, or KX-A36 before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHHR-P505 series handset fit:\u003c\/strong\u003e\n    These models share a common 3.6V single-cell NiMH form factor with matched connector pinout and matching physical dimensions of 50.79 × 42.40 × 14.23mm. The BMS handshake on this family is passive — no data line — so fit is governed entirely by voltage, connector, and housing geometry.\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 KX-series handset. The BMS held cutoff at the correct low-voltage threshold with no false triggers, and the base station charge indicator lit immediately on dock.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge protocol for NiMH handsets:\u003c\/strong\u003e\n    After installing, place the handset in the base cradle for a full 16 hours before first use. NiMH cells shipped from storage are partially discharged — skipping this slow first charge leaves the pack at roughly 60–70% of rated capacity and delays full conditioning.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTalk time shorter than the original battery after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNew NiMH cells are not at full capacity out of the box. The chemistry requires three to five full charge-discharge cycles before the cells reach rated 700mAh capacity. Each cycle, the pack accepts a slightly deeper charge as the crystal structure in the electrodes stabilises. Run the handset until the low-battery indicator activates, then return it to the base for a full charge — repeat this three times before judging talk time.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station charge light not activating after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA NiMH pack that has been in storage can drop below 3.0V. Some Panasonic base stations use a voltage threshold to detect a valid pack before starting the charge cycle — if the pack arrives below that threshold, the base reads no battery and the charge light stays off. Remove the handset, wait 10 seconds, and re-seat it firmly in the cradle. If the light still does not activate, trickle-charge the pack externally to at least 3.2V, then re-dock.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43340085690458,"sku":"BWCS-P501CL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43340085723226,"sku":"BWCS-P501CL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43340085755994,"sku":"BWCS-P501CL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-P501CL-1.webp?v=1778367047","url":"https:\/\/batteryweb.com\/products\/panasonic-hhr-p505-replacement-battery-36v-700mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}