So you're recommending a battery because it starts with 'A'...Why would the country of origin change my opinion? The majority of cells regardless of manufacturer are produced and distributed via China. I'd recommend any battery provided I could justify why and comparing one battery to another is quite simple and doesn't require them to come from the same country... you still haven't justified your advice of an aosibo. Here I will justify why I don't think efest or aosibo are decent recommendations especially for unregulated devices. Efests are rewrapped B grade or worse batteries from the larger manufacturers so I couldn't in good conscience recommend them as I would have no idea what battery is being wrapped and whether the quoted specifications are correct... This goes for aosibo too as they do not quote accurate amp limits on their batteries and at worst overstate them which can be dangerous to users especially of unregulated devices. POTV is an excellent community with users who go above and beyond to help others out. We don't tend to call out other users except where it could potentially result in unsafe practices. I fucking hate it when arsehole twats come here and spout crap from an ignorant or worse potentially BIASED stand point which may expose fellow apes to unsafe advice or practices. And so far this is all you've convinced me of.