Is it safe to use an iPhone with a portable power bank or will the power bank provide too much voltage and damage the battery? - Quora
![Portable Charger 25000mAh Power Bank with 3 Outputs 2 Inputs Huge Capacity Backup Battery with LCD Display Compatible with Smart PhonesAndroid PhoneTablet and More - Newegg.com Portable Charger 25000mAh Power Bank with 3 Outputs 2 Inputs Huge Capacity Backup Battery with LCD Display Compatible with Smart PhonesAndroid PhoneTablet and More - Newegg.com](https://c1.neweggimages.com/ProductImageCompressAll1280/AMTFD200606AF5J4.jpg)
Portable Charger 25000mAh Power Bank with 3 Outputs 2 Inputs Huge Capacity Backup Battery with LCD Display Compatible with Smart PhonesAndroid PhoneTablet and More - Newegg.com
![PocketSize Portable Charger Quick Charge 10000mAh Dual HighSpeed Output Universal Lightest Travel Power Bank External Battery Pack for Smartphone - Newegg.com PocketSize Portable Charger Quick Charge 10000mAh Dual HighSpeed Output Universal Lightest Travel Power Bank External Battery Pack for Smartphone - Newegg.com](https://c1.neweggimages.com/ProductImageCompressAll1280/AHBUD200823FV79L.jpg)