Reviews of Solar Batteries and Solar Battery Manufacturers
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These Sonnen Batteries are wonderful product. They are an AC coupled system and can currently store up to 16kWh. As with most back-up battery you need a dedicated sub-panel but they integrate easily if you know what you are doing and they have sleek looking cabinet. Sonnen answers their phones and we have found the Sonnen salespeople and engineering to be knowledgeable and helpful.... read more
I''ve spent the entire week trying to get tech support to get my monitoring back online. I''ve waited over 5 hours, left multiple messages and even tried the live chat where it says I''m 17 in the que. their customer service needs help badly.
Trojan is taking its role seriously to provide the right product. After exhausted study and search I bought two 6V (model in title) and have them in series. I don''t know how well these would compare to a Rolls Surrette...but it seems to work for me without troubles. Shipped quickly and securely to my local dealer (golf cart place). But time will tell. Check the stats on their RE models.... read more
We have installed several large whole house back-up battery systems utilizing GNB Absolyte Gp-100G21, VRLA, stackable deep cycle batteries and we have had no problem to date with them. If you are utilizing them as a back-up system and have the room for a battery with a low power density these are a work-horse. They need a large footing and an engine hoist to get them in place but once in they are maintenance free. We have installed them with both Outback and SMA charge controller and both work well although the easier system to install is the SMA.... read more