Whoopie! Just got my f-200 delivered. Now I just need to buy a battery charger. I have the choice between an everfast 3,5 h charger that comes bundled with four 2700 nimh batteries and a philips 100 min charger bundled with four 2600 batteries. The Philips charger is double the price but I suppose you get some quality for that in addition to the faster charging times. Any recommendations as to which one to chose? How much more playing time can you get out of 2700 batteries compared to 2600?