Buckling iPad screens

[rclinton]

I have (6) three year old ipads hanging on a vertical in a timeline for a client. They have all started having the glass buckle. We have air vents and plenty of room around them so they are not hot to the touch. They are off warranty and so I wondered if anyone is familiar with why this would happen. I need to replace them, but concerned the same thing will happen again.

Thank you for any insights you can provide.

 

[Eric5273]

If it happened with all of them then it sounds like something with the local environment there or how they are stored.

 

[JPack]

Are you sure it's not the battery pack inside swelling? It can cause the display to lift and separate from the chassis.

If you operate the iPad plugged in all the time, the battery becomes overcharged and can swell.

 

[Kal-037]

What does buckle mean in this context?

 

[Newtons Apple]

Pictures! Please post some pictures.

 

[tomjleeds]

Friend of mine does IT for a school. Last year he sent a picture of 10+ iPads all with swelling batteries and the screens popped out.

 

[Richard8655]

Are you sure it's not the battery pack inside swelling? It can cause the display to lift and separate from the chassis.

If you operate the iPad plugged in all the time, the battery becomes overcharged and can swell.

But I would think once the iPad becomes fully charged, there’d be a limiter sensing that to prevent further (and over) charging.

 

[JPack]

But I would think once the iPad becomes fully charged, there’d be a limiter sensing that to prevent further (and over) charging.

Keeping the battery fully charged is poor for battery health. The charger doesn't let the battery fall below 100%. It's even worse if the iPad is running and generating heat. Ideally, the battery should be charged/discharged based on the 80/20% rule.

 

[AFEPPL]

Apples battery advice.
https://www.apple.com/uk/batteries/maximizing-performance/

Book in one of the devices and have apple check it out.
Sounds like a fault, hopefully they will just replace them FOC.

 

[Richard8655]

Keeping the battery fully charged is poor for battery health. The charger doesn't let the battery fall below 100%. It's even worse if the iPad is running and generating heat. Ideally, the battery should be charged/discharged based on the 80/20% rule.

More information on this concern:

Apple debunks iPad overcharging, explains how charging works

“That circuitry is designed so you can keep your device plugged in as long as you would like. It’s a great feature that’s always been in iOS.”

“Apple does, in fact, display the iPad (and iPhone and iPod Touch) as 100 percent charged just before a device reaches a completely charged state. At that point, it will continue charging to 100 percent, then discharge a bit and charge back up to 100 percent, repeating that process until the device is unplugged. Doing so allows devices to maintain an optimum charge, Apple VP Michael Tchao told AllThingsD today.”

https://www.imore.com/apple-debunks-ipad-overcharging-explains-charging-works

 

[JPack]

More information on this concern:

Apple debunks iPad overcharging, explains how charging works

“That circuitry is designed so you can keep your device plugged in as long as you would like. It’s a great feature that’s always been in iOS.”

“Apple does, in fact, display the iPad (and iPhone and iPod Touch) as 100 percent charged just before a device reaches a completely charged state. At that point, it will continue charging to 100 percent, then discharge a bit and charge back up to 100 percent, repeating that process until the device is unplugged. Doing so allows devices to maintain an optimum charge, Apple VP Michael Tchao told AllThingsD today.”

https://www.imore.com/apple-debunks-ipad-overcharging-explains-charging-works

I guess it will depend on who to believe. I've not come across information that suggests keeping a li-ion battery at or near 100% is good for battery health. All the battery experts out there like Tesla suggest charging to 80 or 90% and discharging from that point.

 

[Richard8655]

I guess it will depend on who to believe. I've not come across information that suggests keeping a li-ion battery at or near 100% is good for battery health. All the battery experts out there like Tesla suggest charging to 80 or 90% and discharging from that point.

Yes, I agree. There may be a divergence of opinion on this. Actual user experience (as we see per OP) may dictate the reality.

 

[Newtons Apple]

I am thinking if not charging to 100% is that important, Apple would program the circuit to only charge to 80 or 90%.

I am sure that would tick off customers, too!

I have always charged overnight to 100% and not even worried about it. No way I am going to babysit my iPhone while on the charger to unplug at 80%, no possible way!

 

[JPack]

iOS 11.3 finally takes this issue into account.

From the release notes:

• Maintains battery health when iPad is connected to power for prolonged periods of time, such as when it is used in kiosks, point of sale systems, or stored in charging carts

In all likelihood, it prevents charging to 100% if the iPad is plugged in for extended periods of time. As usual, avoiding a 100% charge the best advice.