Mophie introduced a new line of modular cases today with what it calls Hold Force technology. The system lets you pick a thin base case for your iPhone 7 or 7 Plus and add optional accessories like a 4000 mAh Powerstation battery or a credit card wallet. The accessories connect to the case with magnets.

A case with a removable parts that extend its utility is an interesting approach. With respect to the Powerstation, MacRumors says:

the Hold Force Powerstation Plus Mini can provide up to 12 hours of extra battery life for average smartphones, thanks to its integrated 4,000 mAh battery. The accessory’s basic charging system is focused on micro-USB, so an included Lightning adapter allows for support of recharging the iPhone 7 and 7 Plus.

I like the idea behind this modular design. I don’t generally use a case on my iPhone, but if I did, the ability to swap accessories depending on what I need on a particular day would be nice. I do wonder how well that lightning to Micro-USB dongle required for the Powerstation will hold up over time though.