Sunload mVELO Guide

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Pedelec/e-Bike Charger mVELO
Manual and warranty.
Made in
Germany

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The CE sign stands for Commanauté Europénne, i.e the Euro-
pean Community, meaning that all products coming with that
sign comply with all EU health and safety directives applicable
to the corresponding product category. This is the condition for
marketing of a product in European Union. The CE sign is the manufacture’s
declaration that the product meets the applicable EU directives and thus may
be safely operated. In addition, the SUNLOAD has the compliance with CE
regulations confirmed by an independent institute.
Pedelec/e-Bike Charger mVELO
The universal charger (110/230V AC power supply, 12/24V car, solar modules)
for Li-lon pedelec batteries with integrated measurement function (W, Wh, V).
The technology “made in Germany” is the highest level of product quality and safety.
It labels SUNLOAD products.

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Dear Customer!
With your new Pedelec Charger mVELO you will experience a new
dimension of independence.
Charge comfortably and safely the Li-Ion battery of your e-Bike or LEV
(Light Electric Vehicle, e.g. even pedelec, e-scooter, e-wheelchair,...)
from the sun, car battery or main and stay mobile!
Let the sun work for you. You can extend the range with our light-
weight and foldable solar panels on your long trips or you can save
the solar power during a day on the permanently installed photovol-
taic system (carport, camper van, caravan) in a car- or solar-battery
and charge your pedelec in the night.
In one hour you can recharge max. 60 Wh, which corresponds to a
range of max. 10 km.
Follow with the unique energy meter the charging of your pedelec, so
you can easily check the consumption of the last tour and the battery
ageing.
Enjoy your new Pedelec Charger mVELO.
Your SUNLOAD Team

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Table of contents
About this manual ............................................................................................ 5
Safety advice .................................................................................................... 6
Scope of supply and optional accessories ........................................................... 7
Which solar panel fits to mVELO? ....................................................................... 8
How to put the device into operation ................................................................ 9
Controls ............................................................................................... 9
Electrical connections......................................................................... 10
Display .............................................................................................. 11
Usage ............................................................................................................. 12
Input: how to charge from solar power ............................................... 12
Input: charge with a 12 V car adapter (CLA) ......................................... 13
Output: charge the pedelec battery .................................................... 13
How to check the battery status ......................................................... 14
Batteries compatibility ....................................................................... 15
The SUNLOAD energy management ................................................................. 16
Technical Data ................................................................................................. 16
Trouble shooting ............................................................................................. 17
Warranty ........................................................................................................ 17
Declaration of Conformity ............................................................................... 18
Cleaning ......................................................................................................... 19
Disposal .......................................................................................................... 19
SUNLOAD customer service - What can we do for you? ....................................... 19

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About this manual
This mVELO comes with a multilevel safety system. Nevertheless we recom-
mend you to read this manual carefully. In order to avoid any risk or injuries
make sure to operate mVELO only as described in this manual. Please keep
this manual for reading it from time to time. When passing on the device,
make sure to hand over this manual as well.
Please note that we can have a revision of this manual on our homepage.
Symbols used in this manual:
This sign warns you of the risks of injury.
This sign warns you of the risk of explosion.
This sign warns you of potential damage.

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The device can be used for charging of Li-lon batteries with a tting
acceptable voltage. There is a re danger by using of other types of
batteries or voltage (for example NiMH)!
Do not expose to open re, water, rain, snow or wet environment. Risk of
explosion or short circuit! Protect the device from getting wet (e.g. in case
of rain) and direct sunlight!
When transporting your mVELO in a bag, keep out any beverages or other
liquids, to prevent the electronic components from being damaged.
The temperature of the device may rise up to 60°C approximately, when in
use. Keep away any materials which are not suitable for that temperature!
Do not keep the device or its accessories within the reach of children or
animals! Keep away from children any small parts which might be
swallowed! If any object has been swallowed, immediately call a doctor!
Do not operate the device if the casing or a cable has been damaged.
Touching live parts may cause electric shock! Do not use the device for
operating life support or other medical equipment!
Safety advice
If the device does not work properly, please read the trouble-shooting section
before calling customer service.
Do not use other accessories than recommended by SUNLOAD!

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Scope of supply and optional accessories
Scope of supply
SUNLOAD Pedelec Charger mVELO
12 V car adapter cable (CLA cable), 3 m
Operating manual
Recommended optional accessories (www.sunload-shop.com)
SUNLOAD foldable solar panel 30 Wp (0.9 kg)
SUNLOAD foldable solar panel 62 Wp (1.4 kg)
Solar modules 25 - 100 Wp (Uoc max. 30 V)
Power supply 100 V - 240 V AC to 24 V / 2.7 A DC

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Which solar panel fits to mVELO?
The mVELO was specially designed to work highly efficiently with different
solar panels. The connector must be SAE plug or DC plug round hollow type
5.5 x 2.1mm (These are standard for solar panels of SUNLOAD).
Be careful when using connector cables from other manufacturers! The plugs may have
the inverse polarity! Double check it with the polarity symbol at the mVELO label.
The acceptable DC input voltage of the mVELO is limited to 30 V.
Please note that the open circuit voltage of the solar module must be lower than 30 V;
otherwise mVELO will be damaged!
As regards the size of the module, please note that the maximum power
the device may process amounts to 60 W. Above an input power of 60 W
the charge current will be automatically limited. Depending on the weather
conditions, we recommend to use solar panels with a peak power from 25 W
to 100 Watt. Higher panel power will not accelerate the charging process!
Please note that even a minor shadow on the solar panel surface considerably
reduces its power. When using a 62 Wp solar panel perfectly oriented towards
the sun – in Berlin, you will generate 45-50 Wh per hour. This amount of
energy correspondences a range of 5-8 km under realistic conditions
(www.Extraenergy.org).

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How to put the device into operation
Controls
You may control the device with a push button.
Push button functions
Push and release Switch between display modes (see also “Display”)
Press and hold for
2 sec.
„WhOUT“ reset Wh to 0.0 Wh, only if you have „WhOUT“ in the display
Push button
Switch between
display modes
Display
Numeric display/
charge level

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Electrical connections
Battery connector
for connection to Li-Ion batteries.
DC-input socket (5,5x2,1mm)
to connect solar panels,12 V-car batteries (by
adapter cable) or a power supply (100 V - 240 V).
Input: 10.5 V - 30 V DC, max. 2.5 A

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Display
Use the display to actively watch and monitor all electrical processes around
solar power generation and storage. You may, for instance, assess the charging
behavior and position the solar panel perfectly with regard to sunlight.
You can use mVELO as a measuring device (see "How to check the battery
status"). The accuracy is +/- 2%. Within the menu you may switch between
display modes by pressing and releasing the push button.
Display modes and menus
Mode Unit Information displayed
WOUT WPower at DC OUT
WhOUT Wh Energy at DC OUT per hour
VOUT VVoltage at DC-OUT
Additional information
MPP MPP tracking for max. solar power is active
Battery charge level (0 to 5 squares)
DC OUT ON Pedelec battery will be charged
DC OUT OFF Pedelec battery is not connected / charging is completed

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Usage
Do not leave the mVELO with the battery in the car or in the sun, because the acceptable
ambient temperature can be exceeded. Do not use the mVELO and the battery by strong
variations of temperature and air humidity to prevent the appearance of condensation on
the surface of the devices. The temperature of the mVELO rises when using. It is usual.
Input: how to charge from solar power
In order to obtain as much solar energy as possible, the mVELO device uses
the MPP tracking method. MPP (maximum power point) means that the po-
wer characteristic of the solar cells are constantly monitored and kept within
the maximum capacity range. This result is an average additional solar yield of
up to 20% as compared with systems without MPP tracking.
How to connect the solar panel
1
Please connect your output plug of mVELO with the input of the
pedelec battery first before connecting the plug of the solar panel
to the mVELO input port. When connecting the solar panel make
sure to avoid any short circuit at the panel jack because it could
damage the solar panel.
See “Which panel ts to mVELO”
2 As soon as enough light is cast on the solar panel, the sun symbol
will appear on the display.
3 Position your solar panel perfectly in the sunlight. Observe the
indicated solar power WOUT while changing the position of the solar
panel. The optimum position is reached when the display shows the
maximum value.

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Input: charge with a 12 V car adapter (CLA)
The scope of delivery involves a 12 V car adapter cable (optional an adapter
cable with battery alligator clips for car batteries). You may charge your
pedelec battery from every 12 V car jack without the solar panel.
There is no danger of deep cycle for a car or solar battery. But the start battery
should not give more than 100 Wh to make possible the car battery to start.
One hour charging generates enough power for up to 10 km. The deep cycle
of car battery is not possible. mVELO finishes the charging automatically
above the minimum charging voltage of your car battery.
Charging from 24 V board voltage is possible in principle, but there is no protection from
deep discharging of 24V car battery.
Do not use mVELO and pedelec battery at high temperatures and strong sunshine in the
car, because high temperatures can damage these devices.
Output: charge the pedelec battery
Before starting the charging process, make sure, whether your mobile device is
suitable for a charging voltage (see “which battery ts to mVELO).
Before charging the device make sure whether your pedelec battery is based on the
Li-Ion technology and if the voltage of both devices matches. The overload can
damage your battery, for instance, if mVELO with nominal output voltage 37 V is
connected to a 26 V pedelec battery.

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Please, follow the manufacturer instructions of your pedelec battery, especially the
temperature and storage conditions.
Please connect your output plug of mVELO with the input of the pedelec
battery for charging first before plug in the current source.
Charge the battery till the procedure is completed (charging power = „0“
[WOUT]).
The solar device was specially developed to charge Li-Ion pedelec batteries
(type cobald, mangan or phosphat not NiMH).
The relatively low charging performance can’t stress or damage the pedelec
battery. The charging current depends on charging voltage and is limited
for charging initial and circuit voltage to prevent the early aging of pedelec
battery.
How to check the battery status
The mVELO measures the power charged in the pedelec battery with
accuracy up to +/- 2% and is suitable as a measuring device to determine the
battery status.
The maximum charged energy for a pedelec battery (capacity) is a measure
for battery status or aging status.
To measure the maximum capacity discharges your battery completely.
Supply your mVELO with current and set the Wh-display to “0” (WhOUT).
You can read the max. capacity of the pedelec battery in the display mode
WhOUT when the charging process is finished.
To get a reference value we recommend to carry out this process with the
new battery. Wait until the new battery is charged 3 times to ensure measu-
ring the maximum capacity.
The measuring value can be compared with the capacity of the pedelec
battery declared by the manufacturer (see the nameplate, Wh = nominal

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voltage [V] x capacity [Ah]).
The minimum discharge voltage and maximum charge voltage determine
the max. storage capacity in practice. A new battery can have a deviation up
to 10% to the nominal capacity [Wh].
Batteries compatibility
Pedelecs have with few exceptions batteries in Li-Ion technology. You should
differ between voltage of 26 V ( 7S, series circuit with 7 units) and 37 V ( 10S,
series circuit with 10 units). This is the fact that the most manufacturers use
the XLR plug, but the number of pins and pin allocation are different.
So even plugs that looks like to be compatible with sockets, might be incompatible.
A damage of the mVELO, your battery or other devices might happen! Please ask your
dealer to make sure, that the mVELO is suitable for your battery type. Any usage with
other batteries is permitted.

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The SUNLOAD energy management
All SUNLOAD products are optimized for energy efficiency, as well as the
mVELO.
The MPP method makes possible that a solar panel has always the maximum
power more independent from the external conditions. On the other hand the
consumption of energy of the mVELO is optimized to spare the resources.
Technical Data
Connections
Socket Typical values Description
DC IN 10.5…30 V (DC)
max. 2.5 A
Suitable for solar panels up to 30 V open circuit
voltage or for 12/24 V power adapters
DC OUT max. 29/42 V (DC)
max. 55 W
Overcharge release voltage and plug type for
connection depends on pedelec battery (Li-Ion).
The DC output port is short circuit protected!
12 V car adapter cable (CLA cable)
Technical
data
Input: max. 14.6 V / max. 4 A
with plug for cigarette light adapter
Casing dimensions and weight
Weight ca. 140 g
Dimensions 56 mm x 123 mm x 20 mm (without cable)
Operating conditions
Acceptable ambient temperature Storage: -20...+70°C
Operating: -10...+40°C; note the acceptable
range of the battery!
Ambient conditions < 92% relative air humidity, no condensation,
no corrosive atmosphere, no wet conditions, not
weather resistant

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Trouble shooting
If the charging process do not start then check following options:
Battery ready for charging? - Maybe the battery have to be switched
on or off.
Battery is fully charged and can not be charged further on.
Housing or cables are damaged - mVELO should not be put into
operation. Contact your dealer or our customer service.
mVELO got wet - Allow all parts to dry under ambient conditions for
two days. You should take the mVELO to your dealer to check the
functionality.
Display not active - check energy source (power adapter, wall socket,
solar panel).
Should you further on be disable to put the mVELO into operation
then please contact your dealer or our customer service.
Warranty
This mVELO device was made in Germany, using the latest state-of-the art
manufacturing methods. We guarantee its perfect condition.
Statutory warranty regulations shall apply. Within the warranty period of 2 years
from the data of purchase we repair all material or manufacturing failures
free of charge. In case of any claim, please contact our customer service first by
phone or email, indicating the purchase date and serial number of the device.

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Declaration of Conformity

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Cleaning
Since your device must not get in touch with moisture, please wipe it with a dry
soft cloth, when required.
Disposal
Please dispose of the package properly after separating the
materials.
The symbol of crossed-out waste bin indicates that the product is a subject to
the European directive 2002/96/EC. Accordingly, all electrical and electronic
equipment must be disposed of separately from general household waste at
the appropriate official waste disposal points. The proper disposal and separate
collection of used devices shall avoid potential damage to health and envi-
ronment. They are a prerequisite for re-using and recycling used electrical and
electronic devices.
You may get detailed information about how to dispose of your electronic de-
vices from your municipal authorities, your waste disposal center or the dealer
where you bought the equipment.
SUNLOAD customer service - What can we do for you?
Please read our frequently asked questions (FAQ) in the support section of our
homepage (www.sunload.com). For further questions please email us to
[email protected] or call the customer service phone + 49 30 74304870.

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mVELO | 350.00x-EN
© April 2014, SUNLOAD Mobile Solutions UG Berlin / Germany.
All rights reserved. Subject to change without prior notice and errors expected.
SUNLOAD Mobile Solutions UG
Wernigeroder Str. 25
10589 Berlin • Germany
Fon [phone]
Fax [phone]
E-mail [email protected]
www.sunload.com