Do not forget that LiPo batteries are ageing. OK for competition the first year and is OK for practice the second. Because of this reason I try to reduce number of variants I have. Remember that one battery for each plane will give you long waiting time between each flight. I try to have 3 batteries and 2 chargers, 2 batteries and 2 chargers are OK.

I am also building a CA Model Eclipse. I will also have a Plettenberg XTRA 30-10 and will probably tray Xcell 4300 mAh (it has 4400 mAh). It is a single cell which I like and it is very cheap. If I need more mAh I will by a TP 5300 for competition. I do not manage TP 6000 and XTRA 30-10, it will be too heavy.

Link to test of Xcell: [link]http://www.elektromodellflug.de/akku-test/xcell.htm[/link]