One of the biggest drawbacks of using a Steripen or MSR Miox in the field is that eventually, you'll need batteries. While the miox can last a long time on one charge (200L), the Steripen gets about 50L. The miox also seems to handle lower power batteries and able to suck out the last bit of juice. Using LIfePO4 RCR 3v batteries, I can get about 20 or so liters before the steripen konks out.
The problem was finding non 12V Cr123 charging solutions. I wanted to be able to charge off USB, so that I could utilize my Goal Zero Nomad 7 and guide 10 Plus. Finally, after some digging, I found it.
This charger is only a slight bigger than two cr123's. Its ability to charge from USB is very cool, as it charges one cell at a time, rather than 2 at a time like most other chargers. This allows enough voltage (5v) from the usb to charge the cell. Its also switchable between 3v and 3.7v cells.
When packed correctly, I can actually charge the guide 10 plus, the cr123's, and a small brunton pack all at the same time, providing pretty much indefinite field use (until I run out of salt for the miox, or until I run through 4000L of water and the bulb from the steripen needs replacing).
The problem was finding non 12V Cr123 charging solutions. I wanted to be able to charge off USB, so that I could utilize my Goal Zero Nomad 7 and guide 10 Plus. Finally, after some digging, I found it.
This charger is only a slight bigger than two cr123's. Its ability to charge from USB is very cool, as it charges one cell at a time, rather than 2 at a time like most other chargers. This allows enough voltage (5v) from the usb to charge the cell. Its also switchable between 3v and 3.7v cells.
When packed correctly, I can actually charge the guide 10 plus, the cr123's, and a small brunton pack all at the same time, providing pretty much indefinite field use (until I run out of salt for the miox, or until I run through 4000L of water and the bulb from the steripen needs replacing).