Battery backup unit for

Lenovo 41Y0679 is a battery backup unit for the DS4200 and DS4700 storage systems. It supplies reserve power when regular electricity is interrupted, so it is intended for compatible storage equipment rather than as a general-purpose notebook battery.

The listed lithium-ion technology identifies the battery type. During an outage, the unit provides backup power to support operation of a compatible system. Its stated weight is 0.9 kg, a useful reference when identifying or handling the component during service or replacement.

Use is limited to Lenovo DS4200 and DS4700 storage systems. The unit is intended to provide backup power to these platforms when their regular power supply is interrupted.