Garmin 276C - Use without Battery?

[wjohnb]

I have a new 276C with the locking Mvg Touratech mount. I have only done about 300km on the LC4 with it as looking out the window there is 2" of snow again. etc.

95% of the time or more I have it hooked up to either the car or 100% when on the KTM.

As most of my riding is on pretty rough going, for me anyway, I am really frightened about all that mass thrashing around there, so, lightening up the load by removing that big battery when attached to external power sounds like a reasonable idea.

Has anyone researched if you can use the 276C without the large lithium battery installed when external power is attached?

Are there any negatives?

Are there any posatives?

I would also imagine that battery life would be significantly longer (as you are not using it!).

Would really appreciate your input. Thank you and all the Best, John