I have three Dell M4600 Precision laptops. They are very good for the price I paid and have given me years of service.
I wanted to add an extra battery to my laptops and purchase the KJ321 slice battery for this purpose. Assuming that the E-Dock port underneath the laptop would support this battery. I purchased two of these slice batteries and charged them up overnight.
Turns out they are not supported, except that they are… ... allow me to explain.
The Slice battery is identified correctly by the ePSA Pre-boot System Assessment, but not the BIOS and thus, not the OS. In my case the OS is Windows 10 Pro (64 bit)
Here is the primary battery installed, properly identified:
Here is secondary battery installed and properly identified:
Here are both batteries, installed and properly identified:
And finally, for good measure, here are neither batteries installed and properly identified:
Is there a way to provide support for this battery in the BIOS? Is there maybe an alternative BIOS that allows for this. Seems like it should be possible.
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