Lithium cell tests

[kane]

I believe this is to be discussed at the next FRA meeting.

[craig_anto]

sorry but being 50,000km away is denting my knowellge of when things get done or maybe its the lack of things being done?
when is the meeting?

[leorcc]

Craig, In October is an FRA meeting.

[leorcc]

btw, it is only 16532km from London to Brisbane Craig.

(Message edited by leorcc on September 26, 2007)

[craig_anto]

i forgot my bag i had to go back lol

[leorcc]

http://www.computerclub.nl/uploads/a123blinky.JPGhttp://www.computerclub.nl/uploads/a123blinky.JPG

Our 4 cell A123 pack, with the Astro Blinky Balancer. It works very well, in less than 30 minutes all cells are nica and equal. The balancer uses standard jumper connectors.

(Message edited by leorcc on October 07, 2007)

[leorcc]

With many thanks to our Australian roboteers:

http://zeva.com.au/tech/LiFePO4.phphttp://zeva.com.au/tech/LiFePO4.php

Very nice report on LifePo4 batteries.

[leorcc]

http://hobbycity.com/UNITEDHOBBIES/store/uh_listCategoriesAndProducts.asp?idCategory=218&Pa rentCat=85http://hobbycity.com/UNITEDHOBBIES/s...cts.asp?idCate gory=218&ParentCat=85

LiFePo4 cells that are not from A123, lighter but lower discharge rate.

[terrorhurtz]

The bigger of the two cells that they do (1.6 Ah) are
the same length as A123 M1s (65mm),
4mm smaller diameter,
72% of the capacity,
84% of the weight,
but are no cheaper (in the US)
internal resistance unknown

[leorcc]

They look like the Huanyu cells to me, which means the A123 are still the best bang for your buck. But to be thurough i feel we do need to place a full picture.