DMTA-10055-01EN, Rev. A, February 2015
Chapter 2
44
2. Press the Power button to turn off the EPOCH 650.
The system beeps, then immediately shuts down.
2.1 Lithium-Ion Battery
The lithium-ion (Li-ion) battery is the primary method for powering the EPOCH 650.
This battery comes installed in every instrument. When properly maintained, and
when the instrument is operated under typical inspection conditions, the lithium-ion
battery should provide between 15 and 16 hours of continuous operation. For
instructions on replacing the battery, see “Replacing the Battery” on page 297.
Make a habit of ensuring the battery is fully charged before taking the instrument out
into the field (see Table 4 on page 47 for information on reading the charging status).
The battery may require several complete charge/discharge cycles to reach full
capacity. This conditioning process is normal for these types of rechargeable
batteries.
Maximizing Battery Performance
By nature, unused batteries slowly discharge. A fully discharged battery does not
recharge. Follow the instructions below to maximize the battery performance:
• When the battery is used daily, connect it to the AC charger/adaptor when not in
use.
• Whenever possible, the battery should remain connected to the AC
charger/adaptor (overnight or over a weekend), so that it achieves 100 % full
charge.
• The battery must reach full charge on a regular basis for proper capacity and
cycle-life maintenance.
• Recharge discharged batteries as soon as possible after use.
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