Is Overcharging a Laptop Battery Dangerous?

  • Thread starter Thread starter mnhtapu
  • Start date Start date
  • Tags Tags
    Battery Laptop
AI Thread Summary
Overcharging a laptop battery is generally not harmful due to built-in safety mechanisms in lithium-ion batteries that prevent overcharging. These batteries are designed to maintain optimal performance when kept at full capacity, and frequent draining and recharging can shorten their lifespan. Actual overcharging would require bypassing the battery's protective circuitry, which is unlikely to happen accidentally. If someone were to intentionally overcharge a battery, it could lead to damage and potentially dangerous failures. Therefore, while normal use does not pose a risk of overcharging, tampering with battery systems can be hazardous.
mnhtapu
Messages
8
Reaction score
0
Is it harmful to overcharge laptop's battery? If it is , then why?
 
Engineering news on Phys.org
All the laptop batteries now are lithium-ion. They last longer when they are kept at full capacity, constant draining and full recharge cycle reduces their life.

However you cannot "overcharge" them because inside the battery module is a chip that controls how much they are should be charged anyways.
 
Yeah, "overcharging" the battery would require disassembling it, bypassing the interface circuitry, and then connecting it to an inappropriate power supply. Which is not the kind of thing that's likely to occur unintentionally.

That said, if you were to actually do that, I'd expect the battery to be damaged, and then fail (possibly explosively).
 
Thread 'Weird near-field phenomenon I get in my EM simulation'

Thread 'Weird near-field phenomenon I get in my EM simulation'

I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
View full post »

Thread 'EMF (Electromagnetic Field) & EHS (Electromagnetic Hyper Sensitivity)'

Hello dear reader, a brief introduction: Some 4 years ago someone started developing health related issues, apparently due to exposure to RF & ELF related frequencies and/or fields (Magnetic). This is currently becoming known as EHS. (Electromagnetic hypersensitivity is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed.) She experiences a deep burning sensation throughout her entire body, leaving her in pain and exhausted after a pulse has occurred...
View full post »

Similar threads

Charging and discharging a battery at the same time
Replies
2
Views
766
How to make a custom UPS using an old PC power supply and 18650 batteries?
Replies
7
Views
3K
Questions about Dell Vostro 3550 and External Battery
Replies
30
Views
3K
Laptop Shutting Down Unexpectedly: Dead Battery?
Replies
24
Views
2K
Manually charging batteries
Replies
11
Views
2K
Draining batteries into fewer batteries
Replies
13
Views
818
Whacking a Li-Ion battery
Replies
12
Views
2K
Solar series battery charging problem
2
Replies
88
Views
11K
Silly question about series batteries
Replies
29
Views
2K
Laptop Battery Dying (78%) - Any Steps to Take?
Replies
17
Views
3K

Hot Threads

Recent Insights

Back
Top