Charging Module Batteries
Module batteries must be charged for at least 4 hours before initial use. Module batteries are
charged in the Philips‐specified battery charger. Refer to the instructions provided with this
battery charger for information.
Installing Batteries in the wECG Module
The wECG module can accept up to two batteries. Depending upon the number of batteries
installed, the wECG module provide different operational features:
To install batteries in the wECG module
1‐24 Important Information Expression MR400 Instructions for Use
If one battery is installed, then the wECG module will turn on and function normally—but
before its charge is exhausted, a second battery must be installed in order to continue the
If two batteries are installed, then seamless operation is possible—one battery will provide
power until its charge is exhausted, at which time the wECG module will automatically
switch to the remaining battery for continued operation. As long as sufficient power is
provided by the second battery, continued operation is possible. And, an exhausted
battery can be replaced at any time without interruption to the ECG study, provided that
sufficient charge is present on the remaining battery.
Indicators identify the source battery being used by the wECG module; see page 2‐9.
When both batteries are removed, the wECG module will turn off.
Hold the wECG module so that its battery bays are oriented as
shown, with battery bay 1 in the lower position and battery bay 2
in the upper position.