GPS Data Logger

Looking for a low cost GPS data logger with a battery life
of several days. Don't need bluetooth or anything fancy.
Most of the devices under $100 appear to have a battery
life in the 10-24 hour range. I'd like 2-3 days minimum
but a week would be better.

Any suggestions?

--
|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~|
| Malcolm Hoar "The more I practice, the luckier I get". |
| malch@malch.com Gary Player. |
| http://www.malch.com/ Shpx gur PQN. |
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Malcolm Hoar schrieb:


Hello,

in compact low cost handheld devices there ist not enough space for the
batteries needed for one full week operation.
You may use a device with a connector for external power and connect it
to an external battery or accumulator with the necessary capacity.
As a rule of thumb, if the capacity of the internal battery is good for
12 hours, you well need an external battery with 14 times more capacity.

But there is another problem, the device needs a lot more internal data
storage for a log of a week instead of 10 to 24 hours.

Bye

On Sep 7, 4:23 am, ma...@malch.com (Malcolm Hoar) wrote:
Most cheap handheld like basic Garmin GPS can do what you need.
Battery life is like 10-20 hours depending on the model.

pcmobile99@yahoo.com wrote:

You might like to have a look at this:
http://www.sparkfun.com/commerce/product_info.php?products_id=8301

or this:
http://www.sparkfun.com/commerce/product_info.php?products_id=8237

or this:
http://www.sparkfun.com/commerce/product_info.php?products_id=8242

or this:
http://www.sparkfun.com/commerce/product_info.php?products_id=671

Must be something here you could use!

HTH

Vic
KC2GUI
victorf ATSIGN windreader DOT com

On Sep 6, 1:23 pm, ma...@malch.com (Malcolm Hoar) wrote:

As you point out, the issue is battery life. Are you able to use an
external battery?

A six volt battery, either a sealed motorcycle battery or a quad of
alkalines should do the job.You can use a diode to drop the voltage to
~5V, which is what most gps receivers are expecting. You might want to
remove the internal battery.

One of the Wintec loggers, based on u-blox, should do the job nicely.