The i700x from iCharge looks like it might hit the bullseye. It comes in a slim white case that’s about the size of an iPhone or similar smartphone. Its power rating of 7000mAh puts it in a sweet spot for portable chargers: powerful enough to charge a late-generation iPad but not so big that you want leave it at home.
iCharge says its mobile power banks feature SmartIQ chipsets which will deliver power at the fastest rate for your device and execute an automatic shut-off.
The charger has a full-sized USB outputs that will work with Apple’s Lightning cable and conventional mini USB charging cables used by most Android devices. A blue ring in one corner of the charger lets you attach a carabiner clip and it lights up to show you how much internal power is left.
The iCharge i700x is available for $19.95 on Amazon.