APC SUA2200RMI2U Power up with no battery connected

[Anonymous user]

Hi, I have an APC Smart-UPS 2200VA RM 2U 230V (SUA2200RMI2U) that's been in storage with no batteries for a while. I'm now hoping to get new batteries and use it, but wanted to check it was still functional before purchasing the batteries. I connected it to AC power and pressed the "On / Test" button ... and nothing, no lights at all on the front panel.

Will the unit power up with no batteries connected, or does it require them to start?

Thanks,
Hannah

[Brad_C · Accepted solution]

On 13/8/2020 2:37 PM, Hannah said:

Will the unit power up with no batteries connected,

No.

On 13/8/2020 2:37 PM, Hannah said:

or does it require them to start?

It needs the batteries to fire up the internal power supply, which then starts the charging process from the mains which will continue to sustain the unit when the battery is disconnected.

[Anonymous user]

Thanks for the info Brad 🙂 I'll go ahead and order the replacement batteries and hope all is well with the unit.