Brand New BN1500M2

[tarmer]

Greetings - Just purchased this afternoon A BN1500M2 - 

Installed the battery  - plugged it in - It started beeping twice every couple of seconds and the battery icon is flashing. Left it plugged in for a couple of hours and no changed - I was able to silence the beeping so not driving me nuts....

I did a reset - unplugged ups - unplugged battery - pushed start button for a few seconds, re-installed battery, plugged into wall and same thing - beeping and flashing ( no X - just empty battery)

I tried to do a self test - But may have done wrong - with the unit on I held power button down for two beeps but it then shut off when I released - should i do this with the unit powered off...

It is brand new so I do not know if it just needs a charge or something else is wrong - 

Thank You all in advance for your thoughts and assistance !