Backup batteries and solar power?

Hello all, thanks for stopping by, I have some questions regarding a backup battery, specifically the Duracell DPP-600HD Powerpack 600 Jump Starter & Emergency Power Source with Radio: http://www.amazon.com/Duracell-DPP-600HD-Powerpack-Starter-Emergency/dp/B000TKHMWK/ref=cm_cmu_pg_t I was thinking about buying this, as well as a portable… Continue Reading