I have figured out how to get more data out of them by lowering the amount they take pictures and switching cameras from video to photo
Exactly.
For me, the main attraction of cell cams is eliminating the need to visit the cam sites on a regular schedule, whether that be weekly, bi-weekly, monthly, etc. The less a cam site visit is required, the better. A near equal benefit is getting the pics sooner instead of a week or two later.
But when set to video mode, the more practical (where data is reasonably limited monthly) cell "plans" can be quickly used up before a month ends. Using video mode in cell cams will necessitate a more expensive monthly service plan than was otherwise necessary.
Then, in video mode, batteries die in a matter of weeks (or days) instead of months.
IMO, video mode is best reserved for non-cell cams, albeit there are exceptions.
Another "trick" to significantly increase battery life with cell cams, is programming them to take less pics (requiring flash) during the night. I have many my cell cams set to trigger as often as every 1 second taking 3 pics per triggering during the day; but then the settings change to every 30 seconds with 2 pics per triggering during the night.
In order to make these changes twice daily, the cams' programming needs to reliably work. The Brownings will re-program correctly @ 90% of the time, only not if too many changes are made simultaneously. The Ridgetecs are closer to 100% no matter how many changes at once. The Tactacams are a crap shoot.
Just keep in mind the biggest battery drain of cell cams is usually the frequency of uploads, number of pics/videos uploaded, followed by nighttime flash. Your overall settings effect every one of these factors.
Then, if you set your cell cams to "instant" uploads (per each triggering event) rather than "scheduled", that "instant" gratification will greatly cut your battery life. I usually set my Brownings to upload 6 to 8 times daily. Most of my Tactacams will only allow either up to 2 times daily (4 with the latest "pro" model) or instant. The Ridgetecs have no limits, totally up to the user as to frequency of uploads.
Unless used more for security than wildlife, I typically don't need nor want "instant" uploads in the middle of the night. But do sometimes switch over to "instant" during the day, scheduled at night, and again, making such changes twice a day requires cell cams that are reliable to actually make those changes (and make them timely, not 24 hrs later).