Hello,
Many times we get complaints related to the Rental Systems we provide. Sometimes its Genuine Hardware Issues, sometimes it is based on lack of User Handling. We request you to close the applications properly and shut down the computer instead of directly plugging off the computer. Also charging the batteries of laptops has to be from appropriate voltage points. After turning on the computer for more than 6 hours, turn it off for the few minutes to avoid heating issues.
If you need any other assistance, in terms of User Handling we will give you free support in case you are our customer or not.