wrote:
On Apr 24, 12:30 pm, Marc Ramsey wrote:
wrote:
On Apr 24, 9:58 am, nimbusgb wrote:
I am flying OPA's at the moment ( other peoples aeroplanes ) and have
a portable setup with Colibri logger and Ipaq PDA all driven from a
LiPo Electric R/C aircraft flight pack. A12v pack with 2200ma/hr
capacity. The power to volume/weight ratio is great. The pack weighs
about 100g and is about the size of 6 cigarettes! It drives the setup
for about 6 hours with the pda on all the time.
Ian
I would never fly with LiPo on board. Let alone in someone elses ship.
I have quite a few of them for my R/C aircraft and have seen them at
their worst. Please be careful.
You don't fly with a cell phone or a PDA?

Marc

Not with lithium Polymer batteries. Lithium Ion, yes. Lithium
Polymer, no.


What makes you think the "lithium ion" cells used in PDAs, laptops, and
cellphones are any different than the "lithium polymer" cells used in
R/C aircraft? Have you ever looked at the cells inside a PDA, or inside
the plastic cases used for cellphone or laptop batteries? Nearly all
are lithium polymer these days (and the R/C suppliers get theirs from
the same factories, which is why they are relatively cheap), although
the laptop manufacturers, thanks to some rather public incidents, are
just starting to switch over to newer, somewhat less flammable, battery
chemistries...

Marc