CaseCrown’s SlimPower Wallet ($30-$35) is a small, simple wallet, with room for cards and cash. But SlimPower wouldn’t be in our Gear section if it were just a wallet — a 2500mAh battery is tucked inside. The battery features a built-in micro-USB cable and Lightning adapter for charging, and also comes with a separate micro-USB cable for recharging the battery itself. SlimPower Wallet comes in genuine black leather for $35, with brown…
