Battery Information

Battery Information

• Proper Battery Care & Use
• Battery Dont's
• Types of Rechargeable Batteries
• Memory Effect
• Battery Upgrading
• Battery Will Not Charge • Maximizing Performance
• Battery Ratings (Volts & Amps)
• Battery Lifespan
• Recycling
• Main Batteries
• CMOS (Clock Batteries) • RAM (Resume Batteries)
• Laptop Burn Time
• "Smart" Batteries
• NiCad Batteries
• Sealed Lead Acid Batteries
• Nickel Metal Hydride

RAM (Resume Batteries)
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.

These type of batteries are alternately known as bridge batteries, RAM batteries, or resume batteries. 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.

Disclaimer: Any statements and information in this page are for general information purposes. They represent the latest technical status at the time of publishing. We reserve the right to change the information in this page without prior notice. The technical information is given in a descriptive way and does not guarantee any properties or change any warranties on batteries.