POWER PACK

 

Has anyone use a Power Pack with there GPS? If so, what brand are you using?

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3790LMT; 2595LMT; 3590LMT, 60LMTHD

I have not - but I have one.

I have not - but I have one. I will try it. The only potential issue I see is it booting to USB drive mode. It would depend on the Model GPS and cable config.
Otherwise, it is a function of the speced capacity vs actual capacity vs GPS drain vs how long you want it to run.

PowerPack won't get GPS into

PowerPack won't get GPS into USB mode because it doesn't send USB host signal like a computer.

I'm using Anker power pack. IMHO, they work pretty well.

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Garmin DriveLuxe 51 LTM-S

I once Used..

I used my 1490 and later my 3597 automotive GPSr's on my bicycle for a time. I powered them with a small 6.5 AH 12V gel cell alarm system battery. I wired a cigarette lighter socket to the battery and used the standard GPS power cord. The battery would power the GPSr's at full screen brightness for around 5 hours.

I eventually scrapped the rig due to it's weight and went back to using handhelds.