At the same time. Off and On once and awhile

 

The battery symbol is related to the charging system.

Alternator may be starting to fail.

 

Never happens when stationery. Only sometimes they will flicker on acceleration or decel.

 

Read the OBD codes. If you don't have a reader then usually the bigger auto parts stores will do it for free.

 

its a 97 Stepwagn. I dont if it has a obd port. I'll have to check.

 

Anything 96 and up should have a obd2 scan port

 

Verify battery is charging and holding a full charge 12.6 volts.
Verify battery terminals are clean and tight.
Verify battery is properly secured.
Verify the belt is not slipping, serpentine belts wont squeal like old Vbelts.
Inspect the belt, verify it is not checking/cracking/glazed/oily.
Some belt treatments may cause more slipping, especially on older dried belts.
Sonce this only happens during accel/decel, I would suspect belt/tension/grip issue, or something is moving(cable/harness/components) and there may be a bad connection somewhere.
Verify alternator output voltage is good.
If any work was done before this happened, no matter how mundane or unrelated, verify what was done did not create your current issue.