Since posting about the Busch and Muller Ewerk, I’ve been getting a fair amount of hits specifically for information on that unit; or just dynamo chargers in general. Another unit that was just rolled out last month has come to my attention, and quite frankly, this one looks like the best option thus far.
Dahon, one of the more established companies producing folders, is offering the Reecharge. Using a battery to regulate voltage and prevent damage to electronic devices, the unit can charge off the dynamo or a wall plug, and in turn, power GPS and phones via a retractable USB cable. As with the other units, the battery also allows you to recharge your devices after your day of riding. It comes with multiple tips to accomodate the differences in current non-standard plugs.
Dahon is offering it as standard on two of their bikes, as well as just the unit for $99. That should make it very appealing. So that still leaves me with a few questions:
- How do these units interface with the existing lighting system of the bikes?
- Are there compatible devices for charging Nimh batteries while riding that could then be used for other things?
- Is it possible to charge a netbook sized PC via a mini-USB port?
Charging the netbook might be asking a bit much, but I could see it being a real selling point, especially if you can run a wire to a pannier. Before you know it, the selling factor for dynohubs isn’t necessarily going to be low drag; but rather, amperage efficiency.