Welch Allyn 6000 Series - Factors Affecting Battery Operating Time

The number of exams per charge decrease with the battery age.
Depending on the age of the battery, a 6-cell battery takes 3 hours and a 9-cell battery takes 4
hours to fully charge at room temperature.
Both batteries have a lifetime of 300 charge cycles or more, where a charge cycle is equal to fully
charged to discharged to fully charged at room temperature.
Battery charging is provided by the monitor’s internal power supply.
For a complete list of battery specifications, see the Welch Allyn VSM 6000 Series Directions for
use (part number 103501).
Best practices
The following practices help to extend the life of the battery and the monitor.
WARNING Safety risk. When handling and storing Lithium batteries: Avoid
mechanical or electrical abuse. Batteries may explode or cause burns, if
disassembled, crushed or exposed to fire or high temperatures. Do not short or
install with incorrect polarity.
• Remove the battery when storing the monitor.
• Replace batteries that trigger a low battery status message when fully charged.
• Do not use damaged or leaking batteries.
• Store batteries with a 30 to 50 percent charge.
• Store batteries within the temperature range indicated for each period:
○
For storage less than 30 days: Maintain temperature at –4 °F and 122 °F (–20 °C and 50 °C).
○
For storage between 30 days and 90 days: Maintain temperature at –4 °F and 104 °F (–20
°C and 40 °C).
○
For storage more than 90 days up to 2 years: Maintain temperature at –4 °F and 95 °F (–20
°C and 35 °C).
• Recycle batteries where ever possible. In the United States call 1-800-8-BATTERY for
information about recycling your Lithium Ion battery or go to the RBRC website at
www.rbrc.org for additional information.
• When recycling is not an option dispose of batteries in an environmentally safe manner
consistent with local regulations.
Factors affecting battery operating time
The following settings and conditions affect the battery operating time.
• The display brightness setting
• The display power-saver setting
• The monitor power-down setting
• Frequency and duration of alarms and alerts
• Amount of motion artifact during NIBP measurements
• Radio searching for an access point
Service manual Overview 15