Artesyn Embedded Technology ATCA-7540, Installation And Use Manual, Page: 64 / 324

Hardware Preparation and Installation
64 ATCA-7540 Installation and Use (6806871A01A )
The battery is designed to provide four years of real-time clock (RTC) data retention when the
blade is unpowered. There is no battery drain when the blade is installed in a chassis with
management power applied. Artesyn Embedded Technologies therefore assumes that there is
usually no need to replace the battery except, for example, in case of long-term spare part
handling.
NOTICE
Blade/System Damage
Incorrect replacement of lithium batteries can result in a hazardous explosion.
Replace the battery as described in this chapter.
Data Loss
If the battery does not provide enough power anymore, the RTC is initialized and the
data in the NVRAM is lost.
Replace the battery before four years of actual battery use have elapsed.
Data Loss
Replacing the battery always results in data loss of the devices which use the battery as
power backup.
Back up affected data before replacing the battery.
Data Loss
If installing another battery type other than what is mounted at blade delivery may
cause data loss. This is because other battery types may be specified for other
environments or may have a shorter lifespan.
Only use the same type of CR2032 lithium battery as is already installed.