This comment amuses me as my company is a browserstack competitor and thus my company and our clients have large numbers of devices. When you are the cloud host

This comment amuses me as my company is a browserstack competitor and thus my company and our clients have large numbers of devices. When you are the cloud host, you have to worry about this and monitor devices for battery damage / swelling. In our case though the battery temperature can be monitored and this partly lets you know when the battery is going bad before it actually gets to that point and risks catastrophic failure.