Frequently Asked Questions(not
sorted by frequency)
Q:
Does the charger come with the bike?
A: YES.
Q: Do
you have 500 Watt motor models?
A:
No and you would not need a 500 Watt motor on an electric bike.
All our bikes' motors have a rated power of 250 Watt. That's the
power needed for an average rider on a flat road. Our models are
able to provide 3-4 times more power when going up hills with
the well coupled controller. A motor with rated power of 500 Watt
will surely give the bike more momentum, but will also cut the
range and battery life significantly.
Q: Why
I could not get the 45 km range sometimes?
A: The range of the electric bikes is determined
by many factors. The most common factors resulting in shortened
range are: an overweight rider, uneven roads, frequent stops,
sudden acceleration, constant full throttle, improper tire pressure,
cold weather, and etc.
Q: How
do you get the number of 45 km for range?
A: The number is from the manufacturer-side tests.
The electric motor’s typical power consumption is 250 watts for
an average weight rider of 160 lbs with a speed of 31 km/h on
flat ground.
For
a 36 volt model:
((36V * 12AH)
/ 250 watts) * 31 km/h = 53.6 km
For a 48 volt model:
((48V * 12AH)
/ 250 watts) * 31 km/h = 71.4 km
With low-voltage protection system, you won’t be able to drain
the battery completely, thus the range is always shorter than
the calculated numbers.
Q: Why
it was so bumpy when riding the electric bikes?
A: The very sensitive micro-switches on both
rear and front brake levers will cut off the power to the motor
if you apply either or both of the brakes. It’s one of the essential
safety features on the electric bikes. Please beware that brakes
are not applied when turning the throttle and check them before
you ride the bikes.
Q: How
long will the battery last?
A: A typical sealed
lead-acid battery lasts about 300 cycles,
while silicone battery lasts about 400
cycles, on average. Most of the RAYLIGHT electric bikes are using
silicone batteries. NiMH and Lithium batteries theoretically have
longer life spans, but are not so mature or stable yet on the
electric bikes, according to our previous tests.
Q: What
else should I know about the bike?
A: Never leave
your important belongings in the compartments! Apply the throttle
gently when starting the bike to avoid the potential permanent
damages on motor and battery! Avoid applying full throttle when
going up hills to prevent burning fuses! NEVER SIT ON THE BIKE
WHEN IT IS ON STANDS to avoid the potential damages on the stands!
