Laptop battery replacement (MSI)

Question

So I bought a used (almost new) MSI laptop two weeks ago. It is a GP62MVR-7RF Leopard Pro.

Everything is looking great on the outside and is doing great on the inside. There is one problem, obviously: the battery discharges quite quickly.

I want to change it. The battery isn't the most common, but there are a few online. And then I fall on this (German based) website that has four (!) different references for my laptop: https://www.sparepartworld.com/msi/gp-serie/gp62/gp62mvr-7rf-serie/

All four have six cells and a 10.8 V voltage. The same for mine.

I got in touch with the customer's service: they did not give me much details, among which "all these batteries work for your computer" and "yes, it can be shipped to France" (yep, that's where I live).

Is a "compatible" (as said on the website) battery for a laptop is commonly working—and working well—as good and as long? The price difference between the compatible and original is quite a gap, and I wanted to know why.

Also, there isn't any problem to put a 51 W·h capacity on a 41 W·h battery-based laptop, right?

Answer 1

When they say it is compatible, they mean the battery's physical form is compatible. That is, it will fit into your laptop. It also means that electrically it is compatible. That is, the rated voltage is that of your laptop's original battery.

The watt-hours (W·h) rating specifies the battery's charge capacity. The higher the watt-hours, the longer it will last. For lithium-ion batteries, you generally see degradation of capacity after about a year or so of constant use. The longer you use the battery, the less effective capacity it will have. So even if you replace the old one with a battery of equivalent rated capacity, you should see an improvement.