Mindray PM-9000, Operation Manual

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The Basics
2-16
2.5.1 Battery Maintenance
2.5.1.1 Conditioning a Battery
A battery should be conditioned before it is used for the first time. A battery
conditioning cycle is one uninterrupted charge of the battery, followed by an
uninterrupted discharge of the battery. Batteries should be conditioned regularly to
maintain their useful life. Condition a battery once when it is used or stored for two
months, or when its run time becomes noticeably shorter.
To condition a battery, follow this procedure:
1. Disconnect the monitor from the patient and stop all monitoring or measuring.
2. Insert the battery in need of conditioning in the battery slot of the monitor, and
leave the other slot empty if your monitor has two slots.
3. Apply AC power to the monitor and allow the battery to charge uninterrupted
for 10 hours.
4. Remove AC power and allow the monitor to run from the battery until it shuts
off.
5. Apply AC power again to the monitor and allow the battery to charge
uninterrupted for 10 hours.
6. This battery is now conditioned and the monitor can be returned to service.
2.5.1.2 Checking a Battery
The performance of a rechargeable battery may deteriorate over time. To check the
performance of a battery, follow this procedure:
1. Disconnect the monitor from the patient and stop all monitoring or measuring.
2. Apply AC power to the monitor and allow the battery to charge uninterrupted
for 10 hours.
3. Remove AC power and allow the monitor to run from the battery until it shuts
off.
4. The operating time of battery reflects its performance directly.
If your monitor has two battery slots, you can check two batteries at the same time.
Please replace the battery or contact with the maintenance personnel if its operating
time is significantly lower than the specified time.