I like the oregon 300 but it does eat batteries.Some time ago I bought a m500 palm pda off the classifieds at Ground speak., I think its called.Doesnt work right and resetting doesnt help.They want 200 bucks to ship to factory:(

My Colorado 400t ate batteries like crazy - but then I switched to rechargeable NiMh's and they've lasted much longer.
My mom has the same unit and someone from Garmin told her that Lithiums were the best for GPS's. She's been using them and they last for what seems like forever (and she uses her backlight all the time!)

Thats what I was told by garmin.I need to do that.

having all the cache info on the oregon is great.But I found out I need to lock the screen at times.I didnt and it ended up in a foreign language.I didnt know how to fix till I got home:))

I want to use Lithium too, but I have the rechargeables already & I don't want to go back to disposeable batteries...

That's one of the reasons I went with the Colorado - the Oregon touch screen worried me; I'm a tech-klutz at times (and there was a great rebate on the Colorado when I bought it, that helped seal the deal.)

I always have two spare lithiums in my pocket for the 400T. Three times so far coins in that pocket have come together in just the right pattern...

I keep meaning to find something to put the batteries in.

Good deal.Ive got some litheums but havent used them yet.Recharges sound like the way to go.

I did that once,put a nine volt in my pocket with my keys.things got hot right away:))

I like lightly tapping the screen on the oregon to brighten the screen.very quick.Thats the only other drawback to the oregon, a dim screen.Havent tried out all the features though.