{"product_id":"apple-ipod-photo-replacement-battery-37v-900mah-li-ion","title":"616-0206 Apple iPOD Photo Replacement Battery 3.7V 900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eApple iPod Photo — 3.7V Li-ion Replacement Battery (616-0206)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 900mAh Li-ion replacement battery for the Apple iPod Photo. It fits the iPod Photo 40GB (M9585LL\/A, M9585ZR\/A) and the iPod U2 20GB Color Display (MA127), along with 54 additional compatible models. OEM part number 616-0206 confirms fitment.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eiPod Photo and U2 Color Display compatibility:\u003c\/strong\u003e\n    These models share the same 3.7V single-cell architecture, physical footprint, and connector pinout. The battery slots into the same bay with no modification to the connector or housing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through full charge and discharge cycles on iPod Photo hardware. The BMS held voltage within spec across the discharge curve and cut off cleanly at the low-voltage threshold without triggering a hard fault state.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap initialisation on iPod Photo:\u003c\/strong\u003e\n    After installing this battery, charge the device fully before powering it on. iPod Photo units frequently enter deep discharge protection after a cell swap, where the firmware holds the device in a low-current trickle state. Attempting to power on before that state clears causes the screen to stay dark even with a good battery seated.\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 on iPod Photo after cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe iPod Photo uses a voltage-threshold method to estimate charge level — it reads cell voltage and maps it to a percentage. A new cell has a slightly different voltage-to-capacity curve than the aged original it replaces. For the first several full charge and discharge cycles, the indicator recalibrates against the new curve, so jumps of 10–20% are normal. Run three complete cycles — charge to full, play until the device shuts off — and the display will stabilise.\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 audio amplifier in the iPod Photo draws more current than the backlight or UI tasks. Near the end of a discharge cycle, cell voltage sags under that load even though the indicator still shows charge remaining. The device interprets the voltage drop as a low-battery fault and halts playback. This is not a defective battery — it is the BMS responding to a real voltage event. If this happens consistently, run a full discharge cycle to zero and recharge to 100% to let the firmware re-anchor its voltage thresholds at 3.0V cutoff.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381352071258,"sku":"BWCS-IPOD0206SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381352104026,"sku":"BWCS-IPOD0206SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381352136794,"sku":"BWCS-IPOD0206SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IPOD0206SL-1.webp?v=1778900214","url":"https:\/\/batteryweb.com\/products\/apple-ipod-photo-replacement-battery-37v-900mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}