Several different types of batteries are used to power laptops.These batteries give your laptop direct current power.
Lithium-ion: This is the kind of battery you’ll want in your laptop.This sort of battery is small and lightweight, and it works better than other battery types.Lithium-ion batteries, unlike NiCad and NiMH batteries, do not have the dreaded “memory effect.”
The memory effect is a feature of nickel-cadmium batteries that causes them to lose their capacity for full recharging if they are depleted the same amount repeatedly and then refilled without overcharging before they are completely exhausted.
Lithium-ion batteries frequently have a rapid-charging option, which is useful when you’re in a hurry.Finally, compared to other types of batteries, this one is more environmentally friendly. Nickel-cadmium (NiCad) and nickel-metal hydride (NiMH) batteries are two older types of batteries that were previously common in portable computers (NiMH).
Because of The Dreaded Memory Effect, the NiCad isn’t generally considered for laptop batteries these days.A NiMH battery lasts longer than a NiCad, but it suffers from The Dreaded Memory Effect as well.By looking at the label on your laptop, you can tell which sort of battery it contains.
NiMH batteries are still used in a few laptop computers.Of course, this is OK, but you might want to investigate if a Li-ion battery update is available. I recommend totally discharging a NiMH battery every now and then to extend its life.For example, after using, draining, and charging the NiMH battery four times (or so), drain it completely and recharge it.
The battery should last a little longer as a result of this.It’s possible that your laptop has two extra batteries.The laptop’s internal clock is powered by a secondary alkaline battery.A third battery can be added to keep everything running for the minute or so it takes to replace a dead main battery with a new one.