2201R Mobile Tester User Guide
Chapter 2 Instrument setup and general operation
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Removing and refitting the battery
You may need to remove the battery (for example, to recharge it in the optional desktop charger).
If you have multiple batteries, you can use them to achieve longer operating time when away from a power source.
To change the battery when away from a power source, switch off the instrument before removing the empty
battery.
Procedure
If a power source is connected, you may change the battery without switching off the instrument. You may then
unplug the power supply. Note that if the old or new battery is nearly fully discharged, this process may reset the
instrument.
To do this (looking at the battery from the rear of the instrument):
1. Unfasten the Velcro strap that secures the battery in position.
2. Push the two clips that hook over the left-hand end of the battery towards the left, to disengage them from the
battery.
3. At the same time, gently pull the left-hand side of the battery outwards from the battery holder (there is a tape
attached to the battery to help with this) until it is clear of the clips. Do not pull it out too far or you may damage
the housing on the right that contains the contacts.
4. Once the battery is clear of the clips, slide it to the left and lift it away.
5. Put the battery in the desktop charger or in a safe place, with its contacts protected. If it is not being used for a
while, you can apply a piece of insulating tape over the contacts to ensure nothing enters the contact slots.
To replace the battery:
1. Slide the battery into the housing on the right, lifting it slightly to engage the contacts.
2. When it is fully home in the housing, push on the left-hand end of the battery until it snaps down past the two
clips.
3. Refasten the Velcro securing strap.
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