Most people have heard about Gen Energy V-Mount Batteries earlier this year at NAB or the Cinegear Expo touting their 'Shock Proof (drop proof)' design, but here's a quick video talking about other clever features you'll find in these V-Mount batteries.
Outside of feeling confident you won't break your battery throwing it around in your gear bag, I like the Gen Energy's ability to reset the protection out in the field (without placing it back on a charger), and how you're able to leave the Battery Meter LED Lights on. This can be handy if you have it working on an LED Light and you need to glance at the power from a distance.
The little features found in Gen Energy batteries definitely give a sense that this company has an attention to detail and are working hard to put out a high quality v-mount battery. When comparing the price + capacity versus other popular brands, I would say it's pretty much comparable. It's neither cheap nor expensive. But if you're specifically looking for a robust battery with exceptional battery management built in, I see no reason not to consider the Gen Energy v-mounts -
available at B&H (found here).