The ReVolt can be recharged directly via a USB cable wherever there is power - vehicles, solar energy panels and of course plug sockets - making it extremely versatile and perfect for long trips away as it can be recharged even in remote and isolated areas.
I nver really got the whole USB rechargable thing until watching the video. I like the fact you can charge it but still use normal AA batteries on the hill. You could leave it in the car ready for use/call-outs, but be safe in the knowledge you can chuck normal batteries in it when needed (at 110 Lumens I guess that'll be often!)
Will have to wait for the price to come down before I can afford it though!
One observation: Why are headtorches not coming with an overhead strap anymore, and batteries in the front? I like the overhead strap and balance from the battery pack at the rear. I also think it keeps the batteries warmer having them at the back, under your hood/hat.
"Only Black Diamond ReVolt NiMH rechargeable batteries will charge inside the headlamp" which it will come with, i hope it works with others unless we have to buy overpriced batteries from bd. dont know how they can resonably check this.
In reply to IoanTataru: maybe, i dont know. but the cost of a non-standard battery or one with a bd label will get passed onto the user. its a nice step forward with the ease of use of usb then a step back with what battery works with it.