1. Battery Storage - Store your pcga-de3l laptop battery in a clean, dry, cool place away from heat and metal objects. The sony laptop batteries will self-discharge during storage; remember stored at about 40% state-of-charge.
2. Exercise Your Battery - Do not leave your pcga-de3l battery dormant for long periods of time. We recommend using the battery at least once every two to three weeks. If a battery has not been used for a long period of time, perform the new battery break in procedure described above.
3. Calibrate Your Sony pcga-de3l batteries - If your pcga-de3l battery's 76% even less in work, you must fully charge, fully discharge, and then fully recharge the laptop battery pack.
4. Charge and discharge - For lithium ion batteries, you do not need to discharge them fully and recharge constantly. You need to do a full discharge only about every 30 charges. Do not charged to higher voltages than its threshold voltage.
5. Do not short-circuit. A short-circuit may cause severe damage to the pcga-de3l battery.
6. Consider removing the pcga-de3l battery from a laptop when running on fixed power.
7. Avoid propping your laptop on a pillow, blanket, or other soft surface that can heat up. Your pcga-de3l battery is a lot less efficient when not within its standard operating temperature range.
8. More battery maintain infomation in laptop battery blog.

In the end, If you have any questions about Sony pcga-de3l laptop Battery, please feel free to Contact us.