According to Apple, the newly released Apple Watch can achieve 18 hours of use between charges. That’s a maximum, though, and real-world use will no doubt come in below that figure, heavy users may not even reach double figures before charging is required. So accessory makers are scurrying to provide additional juice in the form of batteries hidden in a strap. One of those is Reserve Strap, and they’ve discovered a hidden port on the Apple Watch that is going to prove very useful.
The hidden port is covered up on the Watch, but can be accessed with the right tool. Removing the cover reveals a 6-pin port that Apple has never officially explained. It seems the port is there for software transfers and possibly some diagnostic testing. However, the team at Reserve Strap, who are developing a band that charges the Watch, did some R&D and realized they can use the port.
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