User Manual
Joule 2.0 User Guide page 10
Joule 2.0 User Guide page 11
Charging Battery
The Joule 2.0 is powered by a user replaceable lithium-ion battery that can be recharged using
the included USB cable and a computer. A 5VDC 400mA charger can also be used (not included).
A fully charged battery can run for approximately 20 hours before it must be recharged. Recharg-
ing completely, via USB cable or AC adapter will take approximately six hours. The battery level is
indicated in the title bar. The Joule 2.0 is fully charged at the factory, but shipping and handling
may inadvertently consume charge. For more information see Important Precautions section on
page 38.
Chapter 1: Starting Out
1. Press in release [MODE] button or [INTERVAL] button to turn on Joule 2.0. Note: Pressing [JOYSTICK] will not
turn Joule 2.0 on.
2. Plug the mini-USB cable into the mini-USB port on the back of Joule 2.0 and plug the other end into an avail-
able USB port on a computer.
3. A standard AC adapter to wall outlet is available separately.
4. Once connected to a computer or AC adapter, Joule 2.0 displays the connection and charge screen (charging
or charge complete). No data will be displayed.
Connected
Firmware Version
14.045
Charging
Mini-
USB
port
Front of Joule
Back of Joule
Chapter 1: Starting Out
Mini-USB
port
Installing MicroSD Card
Joule 2.0 provides 4 MB of onboard memory for storing activities, history and workouts. Activity
fi le size increases with ride time but a one hour ride is approximately 150 KB, history fi les are
always 1 KB (1,000 history fi les = 1 MB) and workout fi les also increase with workout size but a
workout containing 500 segments will be approximately 50 KB. A microSD card slot is available
under the battery for additional memory. Once a microSD card is installed, all fi les are stored on
the card. For more information see Data Management section on page 16.
MicroSD
card
holder
1. Remove the four screws attaching battery cover to Joule 2.0.
2. Remove battery cover. Remove battery. Note: disconnecting the battery is not necessary. Be careful not to
damage the o-ring
3. Slide microSD card into microSD card holder, behind battery.
4. Attach battery cover and four bolts, using screwdriver. Make sure red O-ring is clean and in place before
attaching battery cover. O-rings should be inspected and replaced if necessary whenever the battery cover is
removed. Use a light coating of grease when re-installing the battery cover on the O-rings.
Battery
cover
Red O-ring