"Searching for Power Bank"

#PokemonGO: Hello guys,I am looking for a good Power Bank to mostly charge my Samsung Galaxy s5 neo while playing Pokemom Go. It really annoys me that the battery is lasting only for like 1.5h. I know that u guys are using one so im asking u for a advice. Was looking for some but i cant really decide.I can spend around 25 € on it. I know poor student ^Have u guys any advice which one to choose and u guys can reccomend it ?Thx in advance ! Cheers, ;) via /r/pokemongo http://ift.tt/2oFmNo5