overcharge your laptop battery

TheSusanagi

Commendable
Jun 10, 2016
3
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1,510
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so i already buying new laptop yesterday and its lenovo ideapad 330 36ID

i5-8300

4GB RAM + 16GB Intel Optane

Nvidia Geforce GTX 1050 4GB

so im buying this laptop for 2 purpose, Gaming (not very demanding game maybe for dota 2 and yakuza 0 on medium setting) and working at the office (browsing and using Microsoft office)

and i have 2 question :

1. do we have to plug the charge while playing the game? what i know is that if you charge the performance is much better while playing games but idk if its good for battery or not

2. so im working for 7-8 hours non-stop while using laptop is it safe to always plug in the charger even though its already full?
 
1. You can play without being plugged in. But a loaded CPU + GPU typically exceeds the current draw that the battery is capable of providing. So the laptop will automatically clock down the CPU and GPU to keep power consumption within the ability of the laptop to provide. So framerates will be substantially worse when playing on battery (expect around half). Also, battery life will be pathetic. You'll be lucky to get more than 1 hour.

2. Whether leaving the laptop plugged in all the time is good or bad depends on how the laptop manufacturer has it set up. Some deliberately underrate the battery's capacity. So when Windows reports 100% charge, it's actually at around 85% charge. It's the charges to 100% (and discharges to 0%) which harm the battery the most. So limiting charges to 85% in this way helps extend battery longevity. (EVs do the same thing - they're typically limited to operate between 20% and 80% charge, displaying those as empty and full charge)

Other manufacturers give you a utility to manually set the max battery charge state. So you can, for example, set the laptop to stop charging when it hits 80%, and not recharge until it self-drains to 70%. Lenovo takes this approach with the Thinkpads. It's one of the functions in the Lenovo Vantage toolbar. I do not know if Lenovo includes this function in its non-Thinkpad laptops.
 

TheSusanagi

Commendable
Jun 10, 2016
3
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1,510
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so the best option while playing the game is to plug the charge right ?
 

ultra_male

Great
Jan 17, 2019
13
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60
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Yes, most gaming laptops nowadays cannot simply give enough juice to the CPU + GPU to operate to their full potential while on battery. Think of the battery as like a backup when you want to move around or perhaps surf the net from a coffee shop.

With that said, most laptops these days stop charging once they reach 95-97% in order to prevent the battery from overcharging and thus deteriorating its life.

For example, see on my MSI GT75 Titan laptop how it stops charging once it reaches 94%

 

TheSusanagi

Commendable
Jun 10, 2016
3
0
1,510
0


ahhh i see thanks for the confirmation!
 

ultra_male

Great
Jan 17, 2019
13
0
60
0

Anytime man.
 

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