Battery Weights
Fighter is 15.4 lbs.....1100 Wh
Bomber is 23.1 lbs and measures 340 x 160 x 115mm....... 1500 Wh
Optibike internal about 14 lbs...a guess at 700 Wh
Optibike external 17.5 lbs.....a guess at 900 Wh
looks like Stealth battery's hold more for the weight
Optibike charges to 41 volts, prolly a 36 volt pack
what is the voltage on a stealth pack?....48 volt or higher I bet.
Paul G