As of 24 May 2012, I have been unable to make contact with anyone at Apollo Solar. (I have their 4Kw 48v inverter, T80HV charge controller, and ISM.) They do not respond to email, or phone calls. All I get when I call, no matter which menu option I choose, is voicemail I believe they are either out of business or nearly so. In any case there customer service, at present, is not existent.
Their systems appear to be well engineered but if there is no company to back it up then it is meaningless.

This review has votes.