Hi everyone, I'm wondering what, if any solar chargers you use and would you recommend? I've currently got a power monkey and although it's been great in the past, it's started to lose its charge quickly and seems to take forever to recharge. I'm looking for a anew one that meets all the usual requirements, waterproof, USB compatible, chargeable from the bike and somewhere between 3 and 8000 ah. Any feedback would be great,