Laptop Battery Information
- What are RAM or Resume batteries?
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Some notebook computers are designed with a dedicated battery for backing up RAM
functions when the machine is temporarily shut off. This feature allows users to
change the main battery pack without losing the current applications and settings
residing in RAM (Random Access Memory). This is called a "battery hot swap" - switching
the main battery pack without having to turn off the computer.
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These type of batteries are alternately known as bridge batteries, RAM batteries,
or resume batteries.
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Most RAM batteries are rechargeable NiCad and will last around 2-3 years. It is
recommended that you replace your notebook's RAM battery when replacing the CMOS
battery.