Welch Allyn Spot Vital Signs 4400, Service Manual

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• Whenever possible, keep the device plugged in to charge the battery.
• Remove the battery when storing the device for an extended amount of time.
• 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 between –4 °F and 122 °F (–20 °C and
50 °C).
○ For storage between 30 days and 90 days: Maintain temperature between –4 °F and 104 °F
(–20 °C and 40 °C).
○ For storage more than 90 days up to 2 years: Maintain temperature between –4 °F and 95
°F (–20 °C and 35 °C).
• Recycle batteries where ever possible. In the United States call 1-877-723-1297 for information
about recycling your Lithium-ion battery or go to the Call2Recycle website at
https://
www.call2recycle.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 table presents settings and conditions that affect the battery operating time and
recommendations to maximize battery life.
Setting / Condition Recommended setting
Display brightness setting 5
Sleep mode setting 1 minute
Automatic power-down setting 15 minutes
20 Overview