I just found the perfect little charger for our INH and XP when fishing, camping or at the cabin. No petroleum, just renewable resources. You can even cook or make a coffee while charging. So smart!
SPECS:
Size: It's 8.25" x 5" when packed.
Weight 33 oz (935 grams)
Fuel Renewable biomass (twigs, pinecones, wood pellets, etc.)
Fire Power Output Peak: 3.4 kW (LO), 5.5 kW (HI)
USB Power Output Max continuous: 2W @5V, Peak: 4W @5V
Compatible Devices Powers most USB-chargeable devices including smartphones.
Charging Time iPhone 4S (2G): 20 minutes of charging provides 60 minutes of talk time.
Charging times vary by device and by strength of fire.
Boil Time 4.5 minutes to boil 1 liter of water. Varies based on strength of fire.
Fuel Quantity 1.6oz (46g) of wood to boil 1 L of water
In the box BioLite Stove
Firelighter
Stuff Sack
Instructions
USB Cord (for internal battery charging)
129$
http://www.biolitestove.com/campstove/camp-overview/features/