We like the 4 foot extension cord with the kits as this lets you secure the battery inside your panniers.
Bike helmet solar panel.
Sure there s a bit of an efficiency loss by first converting the 12vdc solar panel output into 110vac and then letting the e bike charger convert it back down to 48vdc but it certainly makes.
However there is no word on how much it will weigh except they say lightweight whether all that information will be overload for riders and whether any authority will grant it approval.
A solar powered trickle charged weatherproof safety bike helmet with changeable parts.
This probably results in a 20 percent plus efficiency loss.
The kits come with corner mounts.
So we plug the panel into an inverter that then goes to the bike s charger inverter and finally to the bike s battery.
5 8 hours in full sunlight to charge 4 aa batteries i used 3 aaa batteries so it charges in more like 4 hours.
See 45 second video of helmet 2 minute video of construction and use charge time.
Freeloader super cheap small 1 5w solar charger batteries with 800 1600mah built in batteries.
It is expected the helmet will cost us 1600 when or if it comes to market.
Also the battery and inverter and bike charger add another six pounds and a lot of cables to the system.
Not ideal but it works.
Good for smaller usb powered devices for those on a budget.
Products rated between 7 27 watts.
Use your favorite webbing to secure the kits to your bike.