HDS Battery Life and Charting Question

[TCS]

I've been playing with my new toy. Its pretty amazing, although the battery life is shorter than I expected. I picked up a new 12v battery at fastlane and its giving me just about 6 hours with a full charge. Does that sound about right?

I did have the screen on the brightest setting today.

Also, I did get the GPS model but not with nautic insight. Anybody know about a cheap option to get more detailed charts of our local waters into the unit?

In terms of the fishing today. Still slow, although the squid was plentiful around the corner in 120. A lot of squid were at the surface spawning in broad daylight. Got one with my hand when it swam up to the boat.

Go anyway, its super nice out there.