{"product_id":"sony-discman-d-220-replacement-battery-24v-1800mah-ni-mh","title":"Sony BP-DM10 Discman D-220 Replacement Battery 2.4V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSony Discman D-220 Series — 2.4V Ni-MH Replacement Battery (BP-DM10)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V, 1800mAh Ni-MH replacement for the Sony BP-DM10 battery pack. It fits the Discman D-220, D-223, D-321, and D-4215P portable CD players. Capacity figures come from the product data — 4.32Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eD-220 series compatibility:\u003c\/strong\u003e\n    These Discman models share the same 2.4V two-cell Ni-MH architecture, physical form factor, and connector pinout. The BP-DM10 slot accepts this cell without modification across all listed variants.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on a D-220 unit. The internal protection circuit held charge termination correctly at full capacity, and the player's low-battery cutoff triggered at the expected voltage floor without premature shutdown.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eNi-MH cycle conditioning on first use:\u003c\/strong\u003e\n    Ni-MH cells can arrive partially discharged from storage. Run one complete charge-discharge cycle before relying on the battery indicator — the Discman's charge circuit calibrates remaining-charge display against the cell's actual capacity after the first full cycle.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Discman D-220 stops mid-track on a new battery\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe D-220's optical pickup and spindle motor draw current in short bursts as the laser seeks and the disc accelerates. A fresh Ni-MH cell that hasn't been conditioned can show elevated internal resistance, causing a brief voltage sag during those bursts. The player's undervoltage protection reads that sag as a dead cell and cuts power. One full charge cycle reduces internal resistance and eliminates most mid-playback dropouts.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery indicator showing full — then player shuts off seconds later\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells have a relatively flat discharge curve, which means the Discman's simple voltage-threshold indicator stays in the \"full\" zone for most of the discharge, then drops fast at the end. A cell nearing the end of its capacity will appear fully charged right up until the voltage collapses below the 2.0V cutoff. If the player shuts off immediately after showing a full indicator, confirm cell voltage with a multimeter — a resting reading below 2.2V on a charged cell means the cell is no longer holding capacity and needs replacement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333847547994,"sku":"BWCS-KLICA2-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333847580762,"sku":"BWCS-KLICA2-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333847613530,"sku":"BWCS-KLICA2-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KLICA2_1.webp?v=1778213291","url":"https:\/\/batteryweb.com\/products\/sony-discman-d-220-replacement-battery-24v-1800mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}