{"product_id":"apple-ipod-touch-5-replacement-battery-37v-1000mah-li-polymer","title":"Apple iPod Touch 5 Replacement Battery 3.7V 1000mAh 616-0621","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eApple iPod Touch 5th Generation — 3.7V Li-Polymer Replacement Battery (616-0621)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 1000mAh Li-Polymer battery replaces the original cell in the Apple iPod Touch 5 and iPod Touch 5th Generation. It fits the compact media player that handles audio and video playback, app use, and Wi-Fi browsing. Capacity is 1000mAh (3.7Wh), matching the OEM specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eiPod Touch 5 and 5th Generation fit:\u003c\/strong\u003e\n    Both model names reference the same hardware revision. They share an identical connector, cell footprint at 69.43 × 49.38 × 2.40mm, and the same BMS voltage thresholds — so one cell covers both.\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 an iPod Touch 5 unit. The BMS accepted the cell without fault flags, cut off cleanly at the low-voltage threshold, and reported state-of-charge accurately across the full discharge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge protocol after a cell swap:\u003c\/strong\u003e\n    After fitting this battery, connect the device to a charger before attempting to power it on. Media players frequently enter a deep-discharge protection state after extended storage, and the BMS requires a slow trickle current before it will allow a normal charge rate or boot sequence.\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 around after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe iPod Touch 5 estimates state-of-charge by reading the cell's voltage against a fixed lookup table. A fresh cell has different internal resistance than the aged one it replaced, so the voltage curve doesn't match what the firmware expects. The indicator will read erratically — jumping several percent in either direction — until the firmware recalibrates. Run two full charge and discharge cycles without interruption and the percentage readout 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 Touch 5 is one of the higher-draw components in the device. As the cell approaches the bottom of its discharge curve, internal resistance rises and voltage sags under the amplifier's load — enough to trip the BMS undervoltage cutoff even when the indicator still shows charge remaining. This isn't a faulty cell; it's the BMS protecting the cell from over-discharge under real load. To confirm, check the battery percentage when cutout occurs — if it consistently happens above 5%, run a full discharge cycle to let the firmware reset its voltage-threshold calibration.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381335228506,"sku":"BWCS-IPT5SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381335261274,"sku":"BWCS-IPT5SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381335294042,"sku":"BWCS-IPT5SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IPT5SL_1.webp?v=1778899987","url":"https:\/\/batteryweb.com\/products\/apple-ipod-touch-5-replacement-battery-37v-1000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}