Monitor with bars when battery low

Hello,
just bought a brand new 13' 2,9 MAcbookpro. IMy monitor is coming up
with some kind of grey/black vertical bars, not waking up normally.
This behaviour is happening when mac has a low level battery.
Any suggestions, thinking of returning the computer to the mac shop.

Hello,
below the info
Battery Information:
  Model Information:
  Serial Number:          9G2510SK9D3MB
  Manufacturer:          DP
  Device Name:          bq20z451
  Pack Lot Code:          0
  PCB Lot Code:          0
  Firmware Version:          201
  Hardware Revision:          2
  Cell Revision:          158
  Charge Information:
  Charge Remaining (mAh):          3114
  Fully Charged:          No
  Charging:          No
  Full Charge Capacity (mAh):          5735
  Health Information:
  Cycle Count:          2
  Condition:          Normal
  Battery Installed:          Yes
  Amperage (mA):          -1729
  Voltage (mV):          11222
System Power Settings:
  AC Power:
  System Sleep Timer (Minutes):          10
  Disk Sleep Timer (Minutes):          10
  Display Sleep Timer (Minutes):          5
  Wake on AC Change:          No
  Wake on Clamshell Open:          Yes
  Wake on LAN:          Yes
  AutoPowerOff Delay:          14400
  AutoPowerOff Enabled:          1
  Display Sleep Uses Dim:          Yes
  PrioritizeNetworkReachabilityOverSleep:          0
  Standby Delay:          4200
  Standby Enabled:          1
  Battery Power:
  System Sleep Timer (Minutes):          0
  Disk Sleep Timer (Minutes):          10
  Display Sleep Timer (Minutes):          0
  Wake on AC Change:          No
  Wake on Clamshell Open:          Yes
  AutoPowerOff Delay:          14400
  AutoPowerOff Enabled:          1
  Current Power Source:          Yes
  Display Sleep Uses Dim:          Yes
  Reduce Brightness:          Yes
  Standby Delay:          4200
  Standby Enabled:          1
Hardware Configuration:
  UPS Installed:          No
AC Charger Information:
  Connected:          No
  Charging:          No
Besides that, finally went to the vendor. Opened MBP,reseted motherboard manually and found out that the flexible connection with the display was assemled a little bit loosy. Put it back again correctly, and now seems everything fine for the moment. I wan to discharge the battery and see what happens.
I'll keep you informed, thanks for the responses.
Cheers

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