UEi Test Instruments THL2 - Manual (Page 9)

8
Battery Replacement
Only use 3.6V lithium battery.
1. With a small screw driver, open the case. Lever the casing off in
the direction of the arrow.
2. Pull the data logger from the casing.
3. Replace/insert the new battery into the battery compartment
observing the right polarity. The two displays briefly light up for
control purposes (alternating green, yellow, green).
4. Slide the data logger back into the casing until it snaps into place.
Now the data logger is ready for programming.
WARNING!
Under NO circumstance should you expose batteries to extreme heat or
fire as they may explode and cause injury.
NOTE: Leaving the THL2 Data logger plugged into the USB port for
longer than necessary will cause some of the battery capacity to be lost.