Never again! In the beginning all sounds good, battery for home use, easy to install, emergency power. You are happy and convinced but problems will start just 1-2 years after installing. Several problems started on our setup. Not much support from sonnen. If pieces are replaced you get other faulty pices as it was for us the case. After 2 years of problems, not much support on the sonnen side and no interest to have proper service and support on their products we are now completly changing our system all on our own costs. A very expensive “explorative journey into l faulty sonnen products” I wish I had not taken and I wished to have been more critical looking on their “advertisements” ensuring future users of an unfaulty system through what I think “paid” “happy” other customers.Maybe future users are more critical than my and go directly for other companies!
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