User Manual

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10.4 Life of battery
The battery can measure performance for about 400 hours. Use no other than the battery type
CR2450 by RENATA as replacement. Batteries from other manufacturers are often not compatible
with the battery holders in the battery compartment.
10.5 After a ride
After the ride it takes the powermeter power2max about 5 minutes to automatically take a state
of rest. It protects the battery and optimizes its life.
Note:
The power2max powermeter is also activated when a bike is transported. We therefore recom-
mend removing the battery when the bike is transported over a longer distance.
10.6 After an accident
The power2max powermeter was designed under the premises of a high reliability. Major me-
chanical impacts are absorbed by the
power2max powermeter thanks to its robust design.
Irrespective of the foregoing, you should check the following after an accident for the sake of
your own safety and health:
After an accident the cranks may get hairline cracks that might not be visible. After a while
a sudden break may occur. It is therefore advisable to replace the same.
Any rattling noise in the crankset area suggests a damage of the power2max powermeter.
Check all mechanical connections.
Does the bike computer work correctly? If no signal is received, it may be an indication of a
defective power2max powermeter. If in doubt, check whether the green LED in the battery
compartment lights up after changing the battery.
Send us your system for inspection if you are uncertain of proper functioning.
10 Using the Powermeter
The use of the power2max powermeter is as easy as the mounting and start-up.
All you need is an ANT+ capable bike computer that supports the power profile:
Suitable bike computers are, for example:
GARMIN: EDGE 500, 705 and 800,
- BONTRAGER: NODE1, NODE2,
- O-SYNCE: Macro X and Macro High X
The power and cadence data are measured and transmitted by
an ANT+ sport protocol ("power only sensor").
10.1 Before a ride
As long as the bike is not used, the power2max powermeter is in a state of rest.
By moving the crank, the
power2max powermeter starts measuring the power automatically
and emitting radio signals.
10.2 During a ride
The power2max powermeter measures the power and cadence at 1 second intervals and trans-
mits these data by ANT+ radio protocol.
10.3 Zeroing and thermal correction
Zeroing is to balance influences by temperature fluctuations and mechanical zero displace-
ments and finally secure an exact power measurement.
A repeated setting of zero at the bike computer is possible but no longer necessary. It is done
automatically by the system upon relief.
Relief means no more pedalling during the ride for 2 seconds at a minimum.
If such relief as described above is not possible, e.g. due to longer uphill rides, an automatic
thermal correction of the power value will be carried out.
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