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[aprssig] Batteries for standalone trackers

DALE wa7ixk at embarqmail.com
Tue Feb 21 02:59:33 UTC 2012

Also the batteries come half charged. You are working with a live high output battery cell.
No mistakes are allowed.

----- Original Message -----
Dale WA7IXK wrote...

> Good reason to switch to Lithium Iron Phosphate cells.

That's a good point. The LiFePO4 batteries are slightly heavier
than Li-Po and have a slightly lower energy density, but you can
put a nail through them and they won't ignite. You can also charge
them at a very high rate and they should be good for a lot more
charge cycles too.

Just be careful about deep discharging though. LiPos can be ruined 
by a single deep discharge. You should be safe down to 3V per cell 
for LiPos and down to 2.8V for LiFePO4. Some manufactures claim 
you can go a bit lower.


73 es cul - Keith VE7GDH
"I may be lost, but I know exactly where I am!"

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