When charging via standard charging or silent charging the elite 200 v2, is it normal to feel heat coming from the side of the bluetti elite 200 v2 power station? I hear heat is bad for electronics, especially batteries and power stations.
Yes, most work uses energy, energy use creates heat.
The greater the load or charge the more the fan will work as more heat is generated. Ambient temperature is also a variable. In colder weather the battery doesn’t get as hot as when in hot climates. 
Yes, I felt warm air coming out of the side vents when charging my 200V2.