{"product_id":"sony-bp-t18-replacement-battery-36v-700mah-ni-mh","title":"Sony BP-T18 Cordless Phone Replacement Battery 3.6V 700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSony SPP-933 \/ SPP-934 Series — 3.6V Ni-MH Replacement Battery (BP-T18 \/ BP-T24)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 700mAh nickel-metal hydride battery that replaces the BP-T18 and BP-T24 in Sony cordless phone handsets. It fits the SPP-933, SPP-934, and over 76 additional Sony cordless phone models that share this battery format. The cell matches the original voltage and physical footprint, so no modification is needed at installation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSPP-900 series compatibility:\u003c\/strong\u003e\n    These Sony models share a common 3.6V single-cell NiMH architecture with an identical connector and housing profile. The BP-T18 and BP-T24 are interchangeable across this platform because Sony used the same battery bay and charge circuit across the range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through charge and discharge on compatible Sony handsets. The BMS accepted charge from the base station without triggering an error light, and voltage held steady across the full discharge curve during standby and active talk states.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst charge on NiMH cordless handsets:\u003c\/strong\u003e\n    After installing, seat the handset in the base and leave it for a full 16 hours before first use. NiMH cells in cordless phones require a slow initial charge to reach rated capacity — skipping this step will leave the battery short of its 700mAh potential for the first several cycles.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRange reduction after fitting a new NiMH pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDECT handsets regulate transmit power partly based on available voltage from the battery. A new NiMH cell that hasn't completed its first conditioning cycles will sag under RF load, causing the handset to pull back transmit power. This looks like reduced range — walls that were never a problem suddenly drop the call. Run three to five full charge and discharge cycles through the base station and the voltage sag will tighten up, restoring normal RF performance.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHandset loses DECT pairing after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSome Sony DECT handsets store pairing data in volatile memory that clears when power is fully interrupted during a battery swap. The handset powers on normally but shows no base connection or flashes the link indicator. To re-pair, press and hold the page or find button on the base station until the handset picks up the registration signal — typically within 30 seconds. Once paired, voltage should read at or above 3.6V at the handset terminals to confirm the new battery is seated correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43340081070170,"sku":"BWCS-P501CL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43340081102938,"sku":"BWCS-P501CL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43340081135706,"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\/sony-bp-t18-replacement-battery-36v-700mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}