Abu, take a deep breath & think carefully about the 'brick' versus the single cell you mentioned.
Look carefully at the weights on the Hobbyking site, there are two, shipping weight & actual weight of
the item.
The brick weighs just 34 grams more than the single cell. To that you have to take away the weight of
whatever means you use to connect it to leads plus the leads themselves which ARE included in the
weight of the 'brick'. In practice the difference will be two tenths of bugger all.
Remember too we are talking about a 3 metre aeroplane with a seven cylinder radial. A kilogram will
make very little difference to it's performance, 34 grams - nil, zip, nothing, nada, not a sausage, not a bean.
You may even find that 'brick' battery very handy when you stuff it in the tail somewhere to balance that big
lump of aluminium you intend to fit up front!
Did you fly free flight in an earlier life? Weight obsession is a characteristic of free flight flyers, believe it or
not lots of radio models fly better with a little extra weight on board.
You probably have the ideal battery already, good choice! - John.
Last edited by Boomerang1; 12-06-2014 at 01:08 PM.