Bigneilly84

I'm currently thinking of buying the V2 so thanks for the reviews on here. Can anyone advise me what the battery life is like with the watch? I previously tested Arccos tags and returned them due to it draining the battery on my phone too quickly meaning if i wasn't going home to charge my phone it was out of action for the rest of the day. I'm sure the watch would last one round no problem, but has anyone tried to play 2 rounds in a day? Would i need to charge the watch when I stop for lunch if playing twice?