i purchased a new e-bike, a folding model from a local cyclery. cost was 1399+tax=1525. it has a lithium ion battery that i was told would last me 1000 4 hour charge cycles. it is a very sturdy bike and does not rattle when i go over bumps etc. it has rear drum breaks and front pad brakes. it has 20 inch wheels with thick spokes. rear wheel hub motor, battery is 36V 10AH,and power is 240W. top speed is 18 mph but it does not even top 16 on flats. it has some kind of cruise control that kicks in after you hold the accellerator for about 10-15 seconds, and cuts off when any break is applied. it also has power assist that kicks in after a few peddles.
there were two things that i noticed. one was that the battery would run out of charge and would show on the indicator,and lights, that was mounted on the handle bar. the dealer said that i would need to cycle many charges to get the battery performance up to the peak 20 miles per charge. i have charged the battery about 8 times and still cannot get more that 8-9 miles on flat ground. the lights on the battery show full charge (three green lights), but the dealer told me to ignore that (because they will always show full charge on the battery) and look at the battery meter lights on the handle bar. should the battery show the proper level when the small button is pressed on the battery itself?
the other thing i noticed was that the drum brake began to pulsate and gave me jerky stops. he tried to fix it but to no avail,so he is going to replace it with a new rear wheel. the brand name of the bike is "XUNDA", which was originally the famous "ZUNDAPP" mopeds and bikes, that had sold it's rights to a taiwan company who in turn sold it to china. it is a very sturdy bike and i like the way it rides, but i don't know if the dealer is telling me the right thing about the battery.
please chime in if you have any advice for me.