Presario 2111 cmos battery replacement

I was trying to find the battery type and the location of the RTC (CMOS BIOS) battery that is used in the Compaq Presario 2111EA laptop, as the User Guide and the maintenance manual does not mention the battery or how to replace it.

Hello

I disassembled the laptop and find the CMOS battery on the underside of the motherboard.

It was a normal Maxell CR1220, 3v lithium (like a watch battery) button which are clips in a white plastic stand. I ordered a few 40mAh ability with a life until 2018 for some books.

I would have thought that a rechargeable type Lithium-ion would have been used instead of the non-rechargeable type. It is a pity that was not the result of the form of the Mini PCI door to accommodate the change the battery because it is located near the door on the bottom of the laptop. It would have been too easy and owners could change the battery themselves without having to disassemble the laptop to change a battery.

It was for sound technical reasons.

Thanks much for the reply

Brian Walker MISS EngTech

Tags: Notebooks

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