3 battery charge, 4 installation of battery, Attery – B&K Precision 2658A - Manual User Manual
Page 26: Harge, Nstallation of, Caution

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6.3 Battery Charge
When the unit is powered off and connected to AC adaptor MA400, the battery will be charged. The charging
conditions are indicated by two colors LED , and they correspond to the table below.
Charging condition
Color of LED
Good usage of battery
On Charge
Red
Completion of Charge
Green
Remove the battery when unit is connected to the AC adaptor.
Otherwise, battery life will be shortened.
No battery
Green
Abnormal
Blinking Red
※LED is turned off at power-on.
The “abnormal” condition means that the charging time is more than the time expected, or the battery voltage
is too high.
Note: The battery charges only when the unit is turned off (and the AC adapter connected). It is not possible to
charge the batteries while the unit is turned on. Please charge batteries with ambient temperature
in the range of 0 ºC to 40 ºC.
6.4 Installation of Battery
To install the battery, please turn off the power and unplug the AC adaptor if in use. Remove the battery cover on
the back of the unit by first pressing down with light pressure, then slide towards the direction of the arrow as
shown in Fig.1. Next, put the battery as shown in Fig.2. Move it in the direction of the arrow shown in Fig.3 until it
locks in. Use only the MB400 battery as specified. Otherwise, the unit may cause problems or malfunction.
Fig. 1
Fig. 2
Fig. 3
Caution
Misuse of the battery may cause leaks, abnormal heat, fire or explosion.
For safe use, please observe the following precautions fully.
* Do not short-circuit the terminal of the removed battery.
* Do not cause an impacted shock due to throwing, dropping or striking.
* Do not disassemble or remodel the battery.
* Do not throw the battery into a fire or any sources with heat.
* Do not leave the battery in a place with high temperature.
* Do not wet the terminal of the battery.
* Do not cool the battery, and do not charge it in cold outdoor conditions. It decreases performance
and battery life.
* Do not charge the battery in any other way except according to specifications.
* When you keep the battery, please keep it in a cool, dark environment where humidity is low.
Moreover, please keep it out of reach from children.
If the battery remains not used for a long time, it might decrease its charges.
* Please exchange the battery for a new one (MB400) when operating time extremely shortens.