Hi i join you from sunny Ross on wye, south herefordshire. So ive bought an old powabyke much as the picture though delivery is Thursday so pic an example.Hopefully when its up and running will be taking photographic gear along local forest tracks. The battery has been standing idle so i guess it will need replacing and anyway need to lose some weight. Motor is 200 watts. Want to replace battery with lithium and was thinking of the conv-e 6 amp 32 volts. Or something from fleabay. Any advice would be gratefully received.