Hi Tony, I have 11.6Ah capacity (2x batts) and charge to 4.10V which reduces the capacity to about 10.8Ah. I have a round trip of 15km and use up to 5.8Ah depending on weather conditions. Approx 25% I use >5Ah, approx 10% <4Ah, so about 65% is between 4 and 5Ah. Based on this, you would get...