vbSeries Battery Features
The instrument is powered by a rechargeable custom Lithium Ion battery pack with a normal operating range of 6.5 V to 8.4 V.
The instrument is equipped with an internal backup component that protects data and settings in case the battery pack is momentarily removed from the instrument. The backup component is kept charged by the battery pack if the battery pack is functioning normally. The instrument has a number of inbuilt features which help ensure that the battery pack is always sufficiently charged.
Below 7 Volts the instrument automatically turns off the backlight to prevent further power draining and displays a flashing battery icon as a reminder to recharge the battery.
At 6.5 Volts the instrument automatically powers down to conserve power.
With a battery charge of 25% or less the instrument will enter Complete Powerdown Mode when powered off.
Last Reviewed: 09/Jun/2009 Source: vbSeries Reference Guide Revision 15 April 2008 - pages 10 & 11