Big Problems with life-cycles of Battery

[butch_triathlet]

Sorry for my bad english.

Since a view Weeks, I have big Problems with Aqua Mail.
I'm using Android 6.01 with LG G5. My Battery lose a lot of capacity in short time. So I checked my apps about battery consumption very often.
So I saw the battery consumption of Aqua Mail between 20 - 45% of total capacity. So this App is the biggest User of all my apps.
Sometimes Aqua Mail try to synchronize the mails permanent.
If I don't find a solution of this problem, I will delete this app.

Thanks for your help.

[butch_triathlet]

Okay here my settings:
Today in the morning Aquamail needs 38% of Battery capacity. Setting: synchronization imap push; AM try to synchronize permanent. Why, I have no idea. The phone has connection.
In the past I had the synchronization settings interval on 3 hours. Than I had always the same problem: AM try to synchronize permanent. Why, I have no idea. The phone has connection.
In the settings of my phone synchronization generally is activated.

[butch_triathlet]

I have 3 E-Mail accounts.
It's my business E-Mail Account. The Support I get from my marketing company. I Think the account is save on Strato (German company) server.

Number of folders you're synchronizing? How many messages (your settings)?
This question I don't understand correctly.
every account has 1 receive of Mails. In sum AM synchronize 3 receive of Mails.

How many messages (your settings)?
1000 messages to synchronize and 250 Messages to save on local storage.

[mikeone]

I strongly recommend to reduce the number of "Messages to sync" in your settings.

How many messages you've set the app to sync (keep up to date with the mail server), there is an app level setting and optional per-account overrides:

App settings -> mail, receiving -> messages to sync

Long press on an account -> options and folders -> account options -> messages to sync

The larger the values, the more work the app has to do every time it checks mail or catches up to push changes. The default is 50 (for Android 5.0+).

Recommendations for your settings:
"messages to sync" and "messages to cache" to values like these:

sync = 100 (default is 50), cache = 250 (default)

sync = 250, cache = 500

sync = by date range (e.g. 14 days, 30 days..), cache = 250 (default)

The more messages the app it set to sync to the device, the more work it takes (in terms of battery / traffic), so jumping to into the "thousands" values is not recommended.

[butch_triathlet]

I have this problem on both connections.
Wifi and UMTS / LTE

[butch_triathlet]

Thank you very much for your help.