NEC manual Getting Familiar with Your MobilePro 750C

NOTE

If you receive messages indicating that both the main battery and the sub-battery (back-up bat- tery) are very low, replace the back-up battery first.

If a drained main battery is not replaced, the back- up battery drains more quickly than normal.

2.Disconnect any cables attached to the unit, such as the AC adapter cable.

3.Have a new back-up battery available.

!WARNING

Only replace the back-up battery with a CR2032 Lithium battery.

Using another battery type can result in an explo- sion or fire.

Getting Familiar with Your MobilePro 750C 2-13