Just the job!

A couple of weeks ago I Blipped a model boat I had converted from a Stand Model to a functioning one, said I needed to get a lighter drive battery, well we discovered a Model Shop, an old fashioned sort with materials and all the little bits one needs. Told the owner my problem and he came up with this, intended for miniature aeroplanes, but perfect for me! Total weight is 47 grammes, 700 mah, capacity, so it should be much better now.