Conditioning The Battery; Replacing The Battery - GE MAC 3500 Service Manual

Maintenance
3. Charge the system for 4–5 hours or until the battery gauge icon indicates a full
charge.
NOTE:

Conditioning the Battery

In addition to normal system use, periodic deep discharge cycles may be required to
ensure consistent battery performance. A deep discharge cycle occurs when the
battery is discharged until the system shuts down and then recharged until it is full.
GE Healthcare recommends one deep discharge cycle once every three months, but
does not recommend over-exercising the battery with multiple deep discharge cycles.

Replacing the Battery

No matter how well you maintain your battery, you will eventually need to replace it.
Refer to the following illustration for instructions on how to replace the battery.
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If the battery is fully charged or exceeds safe charging temperature, the
system will not charge the battery.
MAC™ 3500 2046275-019H