Does a hardware RAID controller come with or without a battery?

By default, a hardware RAID controller comes without a battery. The battery can be purchased separately. All the current prices are available in Additional Service Cost in the Help section.

NB: In case of the DELL DX291 and DX151 plans, the BBU battery comes with a 8-port RAID controller.

To replace a battery using the EX/PX plans, you need to make a one-time payment of EUR 169.

It is impossible to replace a battery using the DX291 and DX151 plans. If the battery goes out of order, you will need to replace the whole RAID controller. If that's the case, please expect a downtime.