ESR makes some of the best iPhone accessories out there, and its HaloLock technology works extremely well with MagSafe. This battery back locks securely onto the back of your iPhone to charge the battery and holds up to two cards at the same time in a leather wallet attachment.
There’s battery enough here for a couple of charges, depending on the device that needs juicing up, and it’s compatible with a range of MagSafe devices.
Charging batteries and holding your money all at once
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