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Title: Unreliable
Review: I purchased several CyberPower brand inverters because this is the only brand in stock at Best Buy. Now I understand why it is still in stock while the other brands are sold out. Sometimes they work and sometimes they do not work. I would classify them as substantially unreliable. The end of the CPS150BI model fell off somewhere in the car because it is so cheaply made. Therefore, I bought a much more expensive CyperPower model before a long road trip because it was the only other inverter immediately available. The new purchase did not work at all. This really affected my daughter's schoolwork because we were on a long road trip and she could not use her computer.
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