MOTOR AND BATTERY
Both the motor and battery are very user-friendly components that do not
require a lot of special attention. However, there are a few tips and notes you
should consider.
Motor
• The motor unit is a fully closed, well-protected unit, but never pressure
wash the bike/bottom bracket area
• Any firmware manipulation. e.g. to derestrict the speed limit, is illegal
and can void the warranty
• Be aware that the additional motor power results in greater wear and
tear of drivetrain parts, brake pads, tires, etc.
• Warranty terms: 2 years
Batteries
Your Specialized Turbo SL comes with a high-quality Lithium Ion battery that
is built for maximum performance and safety.
• Familiarize yourself with the battery chapter in the manual and the
symbols on the battery itself
• Be aware that batteries age over time and through usage
(reduced range)
• Always power off the bike before connecting or disconnecting the RE
battery or charging it
• Batteries have undercharge and overcharge protection, so that they can
be charged/discharged as needed
• Store your Turbo SL e-bike with the internal battery and any RE battery
at room temperature before riding in cold conditions (especially when
below 0° C / 32° F)
• When not using batteries for a longer period, leave them at a charge
level of about 60 %, store them/the bike in a dry, preferably cool place;
recharge to 60 % every three months
• When carrying your bike on a car bike rack, remove the Range Extender
battery and make sure the charge port is closed; transport the RE inside
the car
• Warranty terms: 2 years or at least 75 % capacity after 300
charge cycles.
Avoiding Damage Made Easy
DO NOT rotate the cranks backwards when:
1. The charge cable is connected
2. The RE cable is not connected to the frame port
This also means you should never push your Turbo SL backwards in the two
above scenarios. The RE cable should either be connected at both ends or
be completely removed from the bike. Disregarding this advice can result in
serious damage to the charger connector, the RE cable or even the
RE/charge port.
RIDING
These five notes and tips will help you improve your Turbo SL rides
and understand key bike behaviour.
Shifting
When shifting gears, reduce pedaling force. Try to avoid shifting under heavy
loads, e.g. when accelerating or climbing. Only shift one gear at a time. This
leads to smoother, quieter shifting and supports drivetrain longevity.
Mode Selection
When looking for increased range, primarily use the modes Eco and Sport.
When you need maximum power or maximum range is not needed, Turbo
mode is a great option.
Maintain a Smooth Cadence
The motor is designed to support you especially well at higher cadences (~75
rpm and above). Pedaling with a smooth cadence is beneficial for optimal
range and motor support. Tip: Use the TCD to monitor your cadence.
Discharge Range Extender First
We recommend sticking to the default parallel discharge scenario when using
a Range Extender battery. This way, the technically needed reduction in motor
assist will be noticeable later and battery health benefits in the long run.
Discharging the RE first only makes sense if you want to remove it at some
point to have a lighter bike or if you want to make room for a water bottle.
State of Charge and Power Output
Between 20% and 15% remaining battery state of charge, the system starts
reducing motor support to ensure uninterrupted support at lower charge/
voltage levels. Between 5% and 3% remaining soc, motor support shuts off,
but the system stays on.
This is not only beneficial for battery health and lifetime, but also ensures
wired lights can be powered for about two more hours.
SERVICE AND MAINTENANCE CONT.
Cleaning Your Turbo SL
By cleaning your bike regularly in an appropriate manner, you
ensure greater longevity, less wear and the best performance.
These tips are key:
• Never use a high-pressure washer (use a wet cloth or a low-pressure
garden hose for removing dirt)
• Always turn off the bike before cleaning
• Remove the Range Extender battery (RE) and close the charge port
before cleaning (if needed, clean separately with a wet cloth; remove dirt
from connectors with a soft brush or low-pressure air)
• Inspect the RE / charge port for dirt accumulation (to clean inside, use a
soft brush or low-pressure air)
• Before connecting the charger or Range Extender battery, make sure all
contacts and ports are dry and clean
• Regularly clean the Speed Sensor magnet on the rear wheel with a cloth
(brake dust with metal parts can collect and cause issues)
• Pay special attention to chain/drive-train maintenance
