SO much experience with shitty Dell batteries from working in IT. They have by far the worst battery quality and warranty on the batteries (1 year only for the battery as it is consumable, yes, i know it is consumable but jesus christ it should last 2 years minimum)
Most cheap batteries will be fine most of the time, but getting a spicy pillow or in worst case scenario: a lithium fire is fucking scary. If it is not produced recently don't expect it to last another 5 years. Batteries degrade even if they are not activelly used so even if its brand new for you it won't work like a brand new one for long
Yes, iPhone batteries degrade with time and due to other factors like heat. How long does a battery last if never used? A battery will age and degrade even if it’s never used and especially if it’s stored at 0% charge. This is known as a deep discharge state. Is it possible to increase battery health?
Modern batteries are the happiest in the state of least stress, which is 50%. To some degree I'm always scared of dodgy batteries. Most cheap batteries will be fine most of the time, but getting a spicy pillow or in worst case scenario: a lithium fire is fucking scary. If it is not produced recently don't expect it to last another 5 years.
They have by far the worst battery quality and warranty on the batteries (1 year only for the battery as it is consumable, yes, i know it is consumable but jesus christ it should last 2 years minimum) If you're planning to keep using the laptop always plugged in and your bios has the option enable the battery limiter, ideally at 50%.
The batteries in phones and laptops (and most other devices these days) are typically Li-Ion or Li-Po batteries. These batteries do not need to be fully discharged. In fact, doing so can shorten their lifespan. A little discharge is beneficial, though.