Monday 29 November 2010

Energy storage in capacitors

Energy storage in capacitors

A nice mathematical and practical comparison of Battery and Capacitor stored energy.

Super and ultra capacitors have a way to go.

A 3000F 2.7v from Electronic Goldmine can hold 10.94k Joules of energy: (1/2)*C*V^2

This is only equivalent to the energy stored in a .95Ah 3.2v Lithium Iron Phosphate (LiFeo4) Battery: V*Ah*3600.

Lets hope that Eestor are not vapor -ware.

Sunday 28 November 2010

Australian EV to sell for under $10,000 | Electric Vehicle News

Australian EV to sell for under $10,000 | Electric Vehicle News:

Wednesday 17 November 2010

Optus Cable upgrade to DOCSIS 3. Wahoo.


Using Free Download Manager that downloads files in multiple parts, I can get about 960kB/s or 7.68Mb/s

After the upgrade, I get the following. 7 x as fast!

Using parallel downloads I now get about 5MB/s Thats about 5 times what I had before. All for the same price I was paying. Thank you Optus.

Think I will just back up the internet.

This is what I get from the Optus site.