Feeds

Flat mobe battery? Just light a fire

Hiker hacker's maker charger is a gas, gas, gas

Intelligent flash storage arrays

Sick of running out of charge while on long walks, a Swedish tinkerer has crafted a thermoelectric phone charger to revive his smartphone and GPS by burning butane.

Vulture South notes that the setup, posted on Instructables here, is wildly inefficient, but it's a use-in-emergency approach. As David Johansson, the creator of the fire-powered phone charger explains, solar chargers can't be relied upon given Sweden's weather.

Fire is always on hand for the hiker, “usually an alcohol or gas burner”, he said, so the engineer decided to build a thermoelectric charger. It's a simple enough setup: a thermoelectric module rated at 5.9W with a 180°C difference between its hot and cold side, a heatsink, a fan also driven from the charger (to blow air over the heatsink), and suitable heat insulation.

The heatsink and fan are the type familiar to anyone who still has a desktop PC and has opened the case, four drywall screws holding the 40mm x 40mm fan in place.

The fire-powered iPhone charger. Image: David Johansson

The main electronics required is a voltage step-up since the thermoelectric module's loaded output is 4.3 V rather than the 5 V required to charge the phone. ®

Watch Video

Intelligent flash storage arrays

Whitepapers

Designing and building an open ITOA architecture
Learn about a new IT data taxonomy defined by the four data sources of IT visibility: wire, machine, agent, and synthetic data sets.
How to determine if cloud backup is right for your servers
Two key factors, technical feasibility and TCO economics, that backup and IT operations managers should consider when assessing cloud backup.
Getting started with customer-focused identity management
Learn why identity is a fundamental requirement to digital growth, and how without it there is no way to identify and engage customers in a meaningful way.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Website security in corporate America
Find out how you rank among other IT managers testing your website's vulnerabilities.