Mohr CT100B Series - Caring for the Battery; Charging and Power Status; Batteries and Long-Term Storage; Low Battery

3. Getting Started
3.2.1. Caring for the Battery
The CT100B has an intelligent battery-charging circuit that dynamically determines the optimum
charge rate and reverts to low-level trickle charge when the battery is fully charged. Charging is
automatic and there are no charge-length restrictions.
The battery should be charged between 0
◦
C and +45
◦
C. Battery operation should be limited to
between 0
◦
C and +50
◦
C. Batteries should be stored between -20
◦
C and +60
◦
C for no longer than
30 days or between -20
◦
C and +30
◦
C for no longer than one year. If the battery pack is older, it
may not show a 100% charge capacity even when the maximum battery charge is obtained.
CAUTION: Do not attempt to charge the battery pack below 0
◦
C or above
+45
◦
C. Batteries should not be stored below -20
◦
C or above +60
◦
C.
3.2.2. Charging and Power Status
The CT100B operates from a 24 volt power adapter or the internal battery pack.
In the Power menu, a submenu of the Settings menu, the user can set power save and shutdown
timers. Different timeout values can be set for when the CT100B is using the AC/DC converter or
batteries. In power save mode, the screen goes blank and only enough power is used to monitor for
user input. When input is received, the CT100B resumes normal operation. When the shutdown
timer expires, the CT100B will turn off.
A battery indicator can be toggled on or off with the Power Display menu option in the Power
menu. The indicator will show the level of charge in the battery. It will also show if the 24 volt
adapter is attached and providing power.
3.2.3. Batteries and Long-Term Storage
The CT100B has NiMH internal batteries. These batteries will drain if the CT100B is left in
storage over long periods. To preserve battery charge for as long as possible during storage, make
sure the power switch on the back of the CT100B is set to the OFF position. After several months
of storage, the internal batteries may be completely drained. Allow up to 4 hours for the first
recharge of the CT100B after coming out of long-term storage.
3.2.4. Low Battery
When a low battery condition is first encountered, the CT100B alerts the user. Internal Battery
Low text appears on-screen in red when the battery percentage left drops below 20 percent.
10 CT100B TDR Cable Analyzers Operator’s Manual