Carrier iPhone 7 Plus vs iPhone 7 + battery pack

[clarencek]

After owning a 6 plus for two years I upgraded to a 7.
I was disappointed in the battery so swapped to a 7 plus. But am thinking maybe it's better to use a 7 and the battery pack.

Which would give more battery life? I'm leaning now to getting a 7 and a battery pack it looks like that would edge out the 7 plus on battery life. Does that sound accurate?

 

[SarZ]

This is how I use the battery case
When my phone gives a low battery warning I put the case on it.
When the case is 0% I take it off & charge it . I then use the phone naked.
On heavy days I may need to use the battery case twice in a day but most days the phone lasts me the whole day without needing the battery case.

The battery case is fugly but very useful

 

[cleebrown93]

When I had my battery case for my 7, I got about 36 hours standby time and 8-9 hours of usage.