Just bumping this - It would be good to understand whether this functionality will be enabled (given that shortcut labs wrote the linux driver, and all the functionality should be there already???), or whether the flics and flic hub remains locked down and hence way less useful.
Hi! We don't recommend using external batteries for the Hub because of the high current it can sometimes require while using certain actions. We recommend a source that supplies at least 1 amp of current.
This said, you could try using an external battery such as one used for a mobile phone, but if you're using a lot of actions at once, the hub could turn off.
Also your external battery might run out quite fast if it's a small one.
Hi. Have you tried to set up http://postb.in and use such an URL instead? Then you can inspect what the hub sends. We have plans to improve the error handling of HTTP Request but aren't quite there yet.