I know people are always saying they have a miracle battery, but this one really sounds promising! 
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Cross fingers. A 20lb battery that powers flight for an hour would revolutionize ppg.
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Wow. The Bonkas by comparison are just under 200Wh/kg
At 500 Wh/kg we would have run time equivalent of the 2 stroke noise makers.
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Hey guys, I am new here. Just wanted to share this article on Lithium Ceramic batteries, which reach 600 Wh / L: Engineers Have Made a New Lithium Battery That Won't Explode | Digital Trends
Cant’ wait to see 7s versions of those come out!
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Unfortunately, there is currently a problem with rechargeable batteries with high energy density over 300 wh / kg. the volt position has even more spread. Lipo are actively used in the range of 3.7 (3.8) to 3.5 V (3.35). Li ion in the range 3.7 to 3 V. the more energy density the more difference that goes up to more than one volt in operation. that means at a 14 s setup are then under the operation up to 10-15 V difference! that is a very big challenge for the esc if you still want to have a lot of power (rpm) at the end of the discharge. currently you can solve that with limmits via software still good. also possible with pure sinus power controllers. but there are limits. probably it will take some years to 500 wh / kg are possible. especially in the high-current load. because the internal resistance may then only be very low because otherwise the battery totally overheated. Duplicate capacity also means double heating power when the internal resistance should remain the same. that was the reason why some e bike manufacturers wondered why the batteries suddenly became hotter when changing from sony vtc 4 cells to vtc 6 cells. It was clear that the larger amount of heat could no longer be removed from the housing surface. we electro pilots knew this before 
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This is why super capacitors will be very useful for these new higher density batteries. They will be the buffer between the battery and the load, reducing heat and stabilizing voltages. This is why tesla bought up the super capacitor company Maxwell Tech. To build a million mile (Lasting) battery.
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