I elrecentlt took my newly acquired Battle Bottle to, of all places, Disney World for a long weekend with my wife and 2 boys.
Hotel and park key cards, contacts case, car keys, phone, and battery charging cell. All onboard in one place.
Threw ice in it filled it, and took a couple large "buy 2 for $5" convenience store waters with me. My wife and boys all had their dinky water bottles that emptied fast and didn't keep ice.
The Battle Bottle retained ice for about 2 days... that included refill...