{"product_id":"sony-spp55-replacement-battery-36v-600mah-ni-mh","title":"Sony BP-T16 Cordless Phone Replacement Battery 3.6V 600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSony SPP55 \/ PP57 \/ SPP58 \/ SPP65 Series — 3.6V Ni-MH Replacement Battery (BP-T16)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 600mAh Ni-MH replacement battery for Sony cordless phone handsets using the BP-T16 pack. It fits the SPP55, PP57, SPP58, SPP65, and over 67 additional models in the same family. The cell format and connector match the original, so it drops into the handset battery compartment without modification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSPP and PP series compatibility:\u003c\/strong\u003e\n    These Sony cordless handsets share the same 3.6V single-cell Ni-MH architecture and BP-T16 footprint. The base station charges via the same voltage rail across all listed models, so one battery spec covers the whole range.\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 the SPP55 platform. The BMS accepted charging current from the base station without error, and cell voltage stabilised to rated capacity within three full cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge conditioning for NiMH 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 cordless batteries do not reach rated capacity on the first cycle — skipping this step will make the pack 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\"\u003eBase station showing no charge or error light after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA Ni-MH pack that has sat in storage can drop to a voltage the base station's charge circuit won't accept. Sony cordless bases use a delta-V detection method — if the starting voltage is too low, the charger never initiates. Placing the handset in the base and waiting 30–60 minutes usually lets the trickle circuit bring the pack up to the acceptance threshold, after which normal charging begins. If the error persists past that point, check that the handset contacts are clean and seated flush against the base cradle terminals.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRange drops noticeably when the new battery is under RF load\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eCordless phones draw a sharp current spike during transmission, and a Ni-MH cell that hasn't been fully conditioned will sag under that load. When cell voltage dips, the handset's RF output power drops with it, which cuts usable range even though the battery indicator still shows charge. The fix is completing three to five full charge-discharge cycles so the cell reaches its rated 600mAh capacity. After conditioning, the voltage holds steadier under transmit load and range returns to normal.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43340108660826,"sku":"BWCS-CPB8013-1","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43340108693594,"sku":"BWCS-CPB8013-2","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43340108726362,"sku":"BWCS-CPB8013-3","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CPB8013-1.webp?v=1778367187","url":"https:\/\/batteryweb.com\/products\/sony-spp55-replacement-battery-36v-600mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}