[aprssig] In car power solution for GPS 18

[Andrew Rich]

Gudday

When I jump in my car, my GARMIN GPS18 (5volt version) takes a while to lace
up on the sats. (because it has been off)

I am wondering if I can throw a gell cell battery in there and charge it
while the car is running. (and GPS going when the car is off)

Now I need to know

1) Should there be a diode in line ?
2) Should there be a resistor to limit current to battery on charge ?
3) Any low voltage cutout ideas ?

Cheers
-----------------------------------------
Andrew Rich
Amateur radio callsign VK4TEC
email: vk4tec at tech-software.net
web: http://www.tech-software.net
Brisbane AUSTRALIA

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