Customer Reviews

Based on 34 reviews
88%
(30)
6%
(2)
6%
(2)
0%
(0)
0%
(0)
M
Mark Schuelke
Works great

Finally a solution to the Michigan permacloud in late fall and early winter!

F
Frank Thomason
Battery help

Have had a Tempest now for alomst 5 years. 1st one lasted 2 years and something in the solar charging circuit went back and would no longer charge. Tempest replaced the unit under warranty and the new unit has been flawmess until a couple weeks ago, when it started to loose some of its battery capacity. During a few continuous days of cloudy weather, the unit would drop off line once the voltage fell to 2.11v. As soon as the sun was back, it would recharge, however I could see the internal battery capacity was waining. Ordered the power booster and got it hooked up, very easy install, and now the battery voltage stays between 2.65 and 2.75v. Was worried about possibly having to replace the unit again, but hopefully this addition will prevent that.

W
William Bowen

Very quick service nice product

J
Joe Calhoun

Easy to install. Seems to be doing the job.

P
Pat gibney
Fast response

Customer support was great and sent the power unit with in a few days