Vernier Software & Technology LQ2-LE 사용자 설명서

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Appendix 
B – 1
 
 
 
APPENDIX B. 
LABQUEST MAINTENANCE 
LabQuest Battery 
 
LabQuest uses a high-quality lithium-ion battery. This is the same chemistry used in premium 
laptop and cell phone batteries, and you can expect similar performance. There is never a need to 
condition the battery by regular full discharge/charge cycles.  
Use only the supplied AC adapter or optional 
 (order code  
LQ2-CRG, sold separately) to charge the LabQuest battery. A 
 can be 
purchased from our web site (order code LQ-PS). 
The battery takes about eight hours to completely charge. It is safe to leave the battery charging 
indefinitely, and there is no need to fully discharge the battery before charging. Battery life will 
depend on the sensors used, but in most cases you can obtain six or more hours of use before 
recharging. We recommend charging LabQuest overnight to start the next day with a full charge.  
For use with a computer, either the battery must be charged or the LabQuest must be connected 
to AC power. The LabQuest cannot operate on USB power alone. When the LabQuest is running 
and connected to the computer, the USB connection will, however, slowly charge the battery. 
When using LabQuest as a standalone device, the screen will dim after a few minutes of no use, 
even during data collection. However, LabQuest will not turn itself off until the battery is almost 
discharged. No data will be lost, as LabQuest App will save a backup file before shutting down.  
Battery life will depend on the sensors and features used. To optimize day-to-day battery life, set 
the screen brightness to the minimum acceptable level, and turn off LabQuest when it is not in 
use. Also disconnect any sensors you are not actively using. To access power-saving options, tap 
Preferences on the Home Screen, then tap Light & Power. 
The long-term life of the battery will vary, but you can expect about three hundred to four 
hundred full charge/discharge cycles before the battery will need to be replaced. In this count, a 
charge from half-way to a full charge would count as half of a charge cycle. In typical school 
use, the battery can last three years or more. Exposure to temperatures over 35°C will 
significantly reduce battery life. 
As a battery reaches the end of its useful life, the run time will become shorter and shorter. 
Eventually the run time will be too short for your application, and you will want to replace the 
battery. Rechargeable batteries are considered a consumable, and as such are warranted for one 
year. 
 can be ordered from our web site (order code LQ2-BAT). 
Recycling information is available at 
 
 
LabQuest Case and Screen 
The LabQuest is water and shock resistant. Do not submerge in liquids. Wipe clean with a damp 
cloth only; do not use any solvents including ammonia or glass cleaners.