Here's the battery weight of a new 720 WH battery. And also the 504 WH on the Heckler....

[luna87824]

Here's the battery weight of a new 720 WH battery. And also the 504 WH on the Heckler....
720 WH 8# 11.2 oz or 3.94 kg and 504 wh is 6# 12.8 oz or 3.08 kg......so it adds 0.86 kg or 1.89#

 

[Tribey]

Not bad, a 42% increase in battery capacity, with only a 28% increase in weight.

 

[sparrow]

Moving Heckler, Bullit, and whatever the EP8 RS lightweight eMTB (Tazmon?) to Darfon batteries seems like a good plan moving forward. Batteries from 300-ish to 720wh would allow assembling bikes to suit lower weights, or longer run time based on rider’s needs.