I am thinking of getting a Yesa LiFePO4 Battery 10Ah 36V battery. Not quite as cheap as Ping batteries and not as light but he is not shipping at the moment and the Yesa cells will fit better in my case.
Here are the discharge curves:
I need 15A max.
I asked about cycle life and was told that:
The capacity on end of 400 cycles is 91.3% with 0.5 C for charging and discharging
What do people think?