Here is some of the latest information on battery advances. Some of the ideas are just lab experiments or concepts. Some of these new technologies could be available very soon. I was most interested in a new type of 18650 that would be safer and overall better than current 18650 lights that we use. I have been following the Nanyang university and Japan power plus battery advances since their announcement. It doesn’t appear as if the Ryden dual carbon battery will ever become a reality.
I am always hesitant to give out 18650 lights as gifts. I love the sunwayman d40a but it doesn’t make a good gift light due to cost. And there is no budget version that has a decent build quality. The sk68 is ok but output may be lacking for some.
The Ryden dual carbon rechargeable 18650 is what I have been waiting to see. But so far nothing. All the claims were amazing and the most important part was safety and no thermal runaway, plus no vent holes. They are supposedly working with team taisan to produce a battery pack for their electric race car. But the Japan power plus goal is to license the technology to current 18650 battery manufactures instead of trying to make their own 18650. They claim their recipe could easily be worked into existing battery tooling. Maybe they are working with Sony or Panasonic as we type.
Yeah the Ryden dual carbon looks great for flashlights
Have you seen the specs?
From here
It looks to have a nominal of 4v, the bad thing is we need new chargers but that is a price i am glad to pay for something potential as good as this.
And they claim that there is no threat of overcharge because the chemistry is so stable, so the charger circuit could be very simple & cheap anyway. You could most likely charge these to ~80% by just connecting them to a 5v USB power supply
It looks to have a starting voltage of 5.6v & be dischargeable 100%.
I wonder if a XP-L/XM-L2 would survive a direct drive with one of these
