A simple but really effective mod. This heli is so old that it came with 7 cell 8.4V 650mAh Nickel Metal Hydride battery packs. We can do much better in terms of power to weight nowadays with LiPo packs.
A 2 cell 800mAh LiPo pack is an almost drop-in replacement but the weight is so different that the heli ends up very tail heavy if we put the LiPo underneath the main shaft where the original pack was.
