I just electrified my Eros 1500 HLG...and I only added 2 ounces of weight with the battery pack! Sound impossible? The plane required some ballast in the nose without a motor. I took the ballast out and replaced it with a speed 400 6v and a 6X3 folder. I did not want to add the weight of 600AEs so I used a 2s2p 1020 kokam pack. Performance was excellent.

Mike