{"product_id":"sony-s60526-replacement-battery-36v-1200mah-ni-mh","title":"Sony S60526 Cordless Phone Compatible Battery 3.6V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSony S60526 — 3.6V Ni-MH Replacement Battery (BT-33)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 1200mAh Ni-MH replacement battery for the Sony S60526 cordless phone handset. It uses OEM part number BT-33 and fits directly into the handset battery compartment. Swap it in when the original pack no longer holds a charge through a full conversation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSony S60526 handset fit:\u003c\/strong\u003e\n    The S60526 runs a 3.6V three-cell Ni-MH pack with a specific connector orientation matched to this battery. Voltage and physical dimensions must align for the handset to seat correctly in the base charging contacts — this unit meets both requirements.\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 Ni-MH compatible test equipment. The BMS held voltage within spec across the first five cycles, with capacity building toward rated output as expected for a fresh Ni-MH cell.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge protocol for Ni-MH handsets:\u003c\/strong\u003e\n    After installing, seat the handset in the base station and leave it for a full 16 hours before first use. Ni-MH cordless phone cells need a slow initial charge to fully activate all cell capacity — skipping this step is the most common reason a new battery underperforms 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 showing no charge or error light after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA fresh Ni-MH battery from storage often sits below the voltage threshold the base station expects before it begins the charge cycle. Some Sony bases use a trickle-detect circuit that reads incoming voltage before committing to a full charge — if the pack is too low, the base stalls. Remove the handset, wait 30 seconds, and reseat it firmly to re-trigger the detection cycle. If the error persists, the resting voltage of the new pack may need to read at least 3.0V before the base accepts it.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTalk time shorter than expected after the first few uses\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells do not deliver full rated capacity until they have gone through three to five complete charge-and-discharge cycles. A new 1200mAh pack may behave like a 900mAh pack in the first week — this is normal cell chemistry, not a defective battery. Run the handset through several full cycles: charge overnight in the base, use until the low-battery tone sounds, then charge again. By cycle five, the pack should be delivering close to its rated 1200mAh output.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43340030148698,"sku":"BWCS-P502CL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43340030181466,"sku":"BWCS-P502CL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43340030214234,"sku":"BWCS-P502CL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-P502CL_1.webp?v=1778367047","url":"https:\/\/batteryweb.com\/products\/sony-s60526-replacement-battery-36v-1200mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}