User Review: SteriPEN Classic
Price Paid: 80$
Do not buy one.
The Steripen is dead weight on a backpacking trip. I used it successfully for 3 days, and the lamp stopped working. I returned it, which was supposed to take 2-3 days, and it was gone for 2 weeks.
When I received it, it worked at home, but on the first day of my next trip, it only purified 3 quarts, with brand new lithium batteries, (which they recommend), before failing. I tried 5 or 6 times to get it to work, following the manual, with no luck.
I then replaced the batteries with fully charged NiMH batteries. It purified one quart, and failed again. I tried with brand new duracells, with no luck.
Luckily I carry iodine tablets as a backup. Without them I would have been out of luck.
I spend 25-30 days a year backpacking. My old filter is a far more reliable and quicker way to purify water in the back country.