Which bike has the longest pure power range?

[eddieo]

Blimey Skip that battery looks a beast! lol.....why so big? power or range or what...does it make the bike more powerful? the weight must be a disadvantage.

 

[theskip1]

Blimey Skip that battery looks a beast! lol.....why so big? power or range or what...does it make the bike more powerful? the weight must be a disadvantage.

I bought a big battery for my recumbent which has a 750w motor so it only gives me about 25m. but as i have two bikes i use the same battery for both.