Mini Power!

NETMF & Gadgeteer
1

Hi guys,

Apologies if this has already been raised.

I’m thinking about converting my the components I got with a FEZ Mini robot into something new. The new project doesn’t have any motors, in fact it’s just a FEZ Mini, some low power sensors and a LCD screen, and so doesn’t have a large power requirement. It does have a requirement to be as small as possible however. The battery pack (4x AA) is pretty bulky.

What’s the best way to go for a smaller way to power the FEZ Mini?

Ta
Andy

2

Maybe this? [url]http://www.sparkfun.com/commerce/product_info.php?products_id=9701[/url]

3

Perhaps a Bohdi Labs booster converter?

[url]http://www.littlebirdelectronics.com/search.php?search_query=bodhi[/url]
[url]http://bodhilabs.com/[/url]

4

Lithium Ion Battery Packs are the way to go if you want high power with small size.

5

Yeah Lithium babe Lithium or if you want to be ahead of the game try A123 betteries something like this, I googled this:

[url]HobbyPartz.com - Lowest Price for Arduino/RC Hobby Parts, Digital Servos, Brushless Motors, ESC, LiPo Batteries/Chargers for RC Helicopters, RC Planes, RC Cars, Robots, RC Toys, 3D Printers

Disclaimer: I am a share holder of A123Sytem :slight_smile:

6

have you measured how much current you need, Do you use Hibernate mode of chip? Do you have any threads that are running in a tight loop rather than sleeping etc .
Rough estimate maybe 50mA so 1500mAH Lithium should give you 30 hours

7

2 coin cell in series ?