{"product_id":"apple-ipod-3th-generation-replacement-battery-37v-850mah-li-polymer","title":"Apple iPOD 3rd Generation 616-0159 Replacement Battery 3.7V 850mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eApple iPod 3rd Generation — 3.7V Li-Polymer Replacement Battery (616-0159)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 850mAh Li-Polymer battery replaces the original 616-0159 cell in the third-generation Apple iPod. It fits the iPod 15GB (M9460LL\/A), 20GB (M9244LL\/A), and 30GB (M8948LL\/A) models. The slim 4.80mm profile matches the original cell geometry for a flush fit inside the case.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3rd Gen iPod model compatibility:\u003c\/strong\u003e\n    The 15GB, 20GB, and 30GB variants of the third-generation iPod all share the same 3.7V battery bay, connector pinout, and BMS communication protocol — which is why one cell covers the full range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on a 3rd Gen iPod board. The BMS accepted the cell without error flags, and the charge controller transitioned normally from trickle to constant-current to constant-voltage phases.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap initialisation on 3rd Gen iPod:\u003c\/strong\u003e\n    After installing a new cell, charge the iPod fully before first use. Units that have sat discharged for months may enter deep-discharge protection, requiring a slow trickle charge before the device responds to normal charge current.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping after a cell swap on the 3rd Gen iPod\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 3rd Gen iPod reads battery level by measuring cell voltage against fixed thresholds stored in firmware. A new cell has a slightly different discharge curve than the aged cell it replaces, so the indicator can jump — showing 80%, then dropping to 40% without warning. This is not a fault with the replacement cell. Run two or three full charge-to-discharge cycles and the firmware recalibrates its voltage-to-percentage mapping against the new cell's actual curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePlayback cutting out before the battery indicator reaches empty\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe iPod's audio amplifier draws more current during playback than the device's voltage sensor expects at low charge states. When the cell voltage sags under that load, the amplifier trips before the indicator hits zero. This is a real voltage sag issue, not a capacity problem. If it happens consistently, let the battery drain completely until the device shuts off, then charge uninterrupted to 4.2V before use.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381352988762,"sku":"BWCS-IPOD3XL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381353021530,"sku":"BWCS-IPOD3XL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381353054298,"sku":"BWCS-IPOD3XL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IPOD3XL-1.webp?v=1778900214","url":"https:\/\/batteryweb.com\/products\/apple-ipod-3th-generation-replacement-battery-37v-850mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}