Generaly, for me it is not enough of Galaxy S7 stock battery for full day on a field, so I am looking for some charging case that could fit to DJI Osmo Mobile.
Anyone who tried some charging cases for Galaxy S7 (like Trianium, Zero Lemon, etc.)? I would appreciate if you could share your ideas and experience on this. Powerbank is a workaround, but not a real solution for me.

Generaly, for me it is not enough of Galaxy S7 stock battery for full day on a field, so I am looking for some charging case that could fit to DJI Osmo Mobile.
Anyone who tried some charging cases for Galaxy S7 (like Trianium, Zero Lemon, etc.)? I would appreciate if you could share your ideas and experience on this. Powerbank is a workaround, but not a real solution for me.