I am one of the backers that funded this company on Kickstarter. I thought it was a great idea to have batteries that can be "stored for 25 years" - according to campaign promises - and have the HydraLight ready to be activated with just salt water and providing light on moment's notice. As a backer, I was rewarded with SC1C-L lantern that uses the same magnesium batteries this flashlight does. The lantern worked great the first time, and the second time. I stored it in a dry place for a couple of months and when I tried it the third time it did not work. The batteries just could not supply sufficient current, meaning their internal resistance has gone way up. This might be caused by corrosion as other reviewers indicated.
I contacted the company several times about it, reporting symptoms and asking about buying replacement batteries. I used both their website and Kickstarter messaging system. I have been completely and utterly ignored so far.
Thus, this product, although promising in its idea does NOT work in practice. It seems the company dedicated no resources to long (well, at least a few months) research. The batteries CANNOT be stored for "25 years," as promised, but only a few months after which they become unusable.
Buyer beware! This product is not worth its price.
Bottom Line: No, I would not recommend this to a friend
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