1) Possibly, however, what is of more importance is how much the battery is used, and what intensity tasks are done on the battery power (though heat can and will damage the battery). What is more important, is that the batteries themselves do not get hot, and thankfully with the cooling pad, and the battery location, the battery is well away from the hot bits of the laptop (cooling fan and CPU). Battery warnings do appear at low battery (10% charge) and critical battery (5% charge), and it auto-hibernates at 5%. Also, there will be a notification when the full capacity of the battery (100% charge) is less than 40% of the designed capacity (capacity at 100% charge when new) - and then you should replace the battery. Overheating hasn't caused any major effects though, since the Acer managed 3 years on its original battery, and the Acer has been overheating since, at the latest, when the machine was 10 months old.
2) Yes, the CPU spikes during any page load, though on TSR, it is more noticeable than on other websites. Hence, sometimes the Acer will be stuck at 25%+ CPU usage for quite a while and the laptop will start throttling due to getting too hot!
3) Let's hope so
Battery life on all devices, including phones, tablets and laptops, should be a high priority...
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