Hello,
You should investigate as to why you keep having the same issues with three different phones. The problems that you mention should not be happening.
1) Check the charging port for lint or other debris (use a bright light and a toothpick). If your iPhone, iPad, or iPod touch wonât charge
2) How is it being charged: Identify counterfeit or uncertified Lightning connector accessories
3) Then see this: If your iPhone, iPad, or iPod touch gets too hot or too cold
4) These are the standard steps for short battery life:
a) Have you tried a restart? If not, do it now.
b) Go to Settings > Battery > BATTERY USAGE BY APP to see the apps that are consuming your battery.
c) Check âBattery Healthâ in the link:Â
iPhone Battery and Performance
d) If all else fails, consider a battery replacement:
iPhone Battery Service
Good luck.