Laptop battery issue

Joined
19 May 2006
Messages
61
Reaction score
0
Country
United Kingdom
I have a GF65 Thin 9SEXR msi laptop which is only 3 years old and little used but the battery seems to be completely drained, the laptop will only power up with the ac adapter lead attached. I have done a battery report but not sure what it is telling me 51300mWh design capacity and 39433mWh full charge capacity. Is it likely to be the internal battery that is the issue or the power block for the want of a better word attached to the ac adapter being faulty and not able to fully charge the battery?
 
Your laptop battery design capacity is 51,300 mWh, but the full charge capacity is only 39,433 mWh. That indicates that the battery can no longer hold its original charge capacity.

The full charge capacity is significantly lower than the design capacity, which means the battery has lost some of its effectiveness, likely due to bad charging habits for example draining the battery to 0%.

You will need a new laptop battery but before putting a new one, go to device manager and uninstall the battery driver then reset your laptop, the issue might resolve for a short period of time, but it will return later, new battery needed.

EDIT : The charger is fine as it does power the laptop without the battery
 
51300mWh design capacity and 39433mWh full charge capacity. Is it likely to be the internal battery that is the issue or the power block for the want of a better word attached to the ac adapter being faulty and not able to fully charge the battery?

I would read that, as the battery is around 1/5 lower in capacity, than when it was new, but it may not be the entire story. If the laptop will only work with mains plugged in, it suggests the battery is not producing the volts needed. You can buy batteries online, and they are not usually difficult to replace.
 
. If the laptop will only work with mains plugged in, it suggests the battery is not producing the volts needed.
I think the battery is actually fine, its just the manufacture blocking the battery from charging through the BMS. Once you hit a certain amount of cycles the battery automatically refuses to charge.
 
Although the battery theoretically has a reasonable capacity left, your laptop was originally a relatively high end gaming laptop.
It probably didn't have a great battery life to begin with.
With a power hungry I7 and discreet RTX 2060 graphics, any degradation of the battery may have an effect.
When the laptop has been left plugged in for a good few hours, what does the battery indicator icon show?
 
When the laptop has been left plugged in for a good few hours, what does the battery indicator icon show?
Good point.

If it's plugged in charging, and it doesn't charge then that will mean the battery needs replacement.

Plugged in not charging, could be related to the battery, but there is some chance it could be a software issue.
 
My 2015 HP laptop battery has a design capacity of 41 Wh. Currently fully charged has a 68% capacity at 28 Wh. HP Support assistant states a cycle count of 266/300 for what that's worth. Also says the battery is healthy.

The battery supports the laptop fine when unplugged (or I forget to switch on the wall socket for mains).

It's thrown some wobblies in the fairly recent past wrt not charging properly and has needed the battery disconnecting and reconnecting to resolve. Simple on this device as it plugs in and doesn't need the case dismantling (unlike access to the memory or HDD for upgrades).
I blame Win11 on this unsupported processor ;)

EDIT All batteries degrade over time and lose capacity. Some designs/chargers just do better than others. Only if the battery capacity affects regular 'normal' use should a new battery be considered necessary.
 
Last edited:
The battery supports the laptop fine when unplugged (or I forget to switch on the wall socket for mains).

My latest Acer, support an option to only charge to 80% of capacity, making it less damaging, to be plugged in all the time.

The slightly older laptop, which recently died on me (hence the new Acer), and I repaired this week - It came with Win 11 installed new - last evening, it claimed it was unable to update to Win11 (???), due to the hardware not supporting it.
 
I had the exact same issue with my Msi GF65 Thin 9SEXR - it would only run plugged in.

If you decide to replace the battery, DOUBLE CHECK the model number! I originally ordered a BTY-M6J (which looks identical) only to discover my laptop actually required a BTY-M6K. The connectors are slightly different and they're not interchangeable. I wasted 6 weeks and paid return shipping twice - don't make my mistake!

You can compare both models here:
BTY-M6K:
https://www.storeshoppe.com/product...si-gf63-thin-11sc-493cz-gf75-thin-8sc-ms-17f2

BTY-M6J:
https://www.ebay.com/sch/i.html?_nkw=BTY-M6J

972hdchozwuq.png
 
Links in this post may contain affiliate links for which DIYnot may be compensated.
Sorry if I am distracting from the initial question, but I usually use my laptop with a mains transformer. So far no problems, but would continued use in this way eventually make the battery lose its life?
 
Sorry if I am distracting from the initial question, but I usually use my laptop with a mains transformer. So far no problems, but would continued use in this way eventually make the battery lose its life?
Yes.

Charging lithium batteries to full charge (100%) eventually damages them, same as letting it reach 0%.

It's not the charger damaging the laptop, once the battery reaches 100% the circuit disconnects the battery circuit, you can test this by feeling the adaptor, it won't be hot after the battery is full as the current supplied by it is reduced.

EDIT: Your laptop might have the feature that allows the battery to only charge till 80%. If it does, then leaving the adaptor plugged in when it reaches 80 percent won't harm the battery and it will last longer.
 
Last edited:
Sorry if I am distracting from the initial question, but I usually use my laptop with a mains transformer. So far no problems, but would continued use in this way eventually make the battery lose its life?

It can do, a great deal seems to depend on the battery charging control system. My latest laptop, and my phone, include an option to limit charging to 80%, for improved working life of the batteries. The phone, attempt to predict when you might need it fully 100% charged, and tries to accommodate that.
 
Back
Top