Rating: 2 / 5
I took the Steripen on the CDT knowing that I would have many questionable water sources, but wary of using chemical treatment on my water for several months in a row.
I was disappointed by the battery life and dependability of the Steripen Classic. I used 4x Lithium AA batteries as recommended. I should have been able to treat 100 liters.
Sadly, however, after about 30 liters, the Steripen would show "no battery." Then, maybe 8 hours later, it would have enough juice to treat ONE single liter before showing no battery again.
This 8 hour delay to access the remaining power in the batteries was unacceptable.
I sent home my Steripen, switched back to my trusty polar pure, and walked the next four months without issue.