Panasonic Bp-dc9, Bp-dc9e Battery Chargers For Leica V-lux2, Leica V-lux3 replacement

First of all, you need to assure the model of your laptop or the part number of your laptop battery. Then look for the battery you need at Secure-Battery. Finally, you can check whether the battery you find is compatible with your laptop or not on the "Compatibility" table (for example, Lenovo ThinkPad P72). If you don't know how to find the right battery for your laptop, you can click "How to find one correct battery for my laptop?" for more details. Moreover, you can click the link "Contact Us" on the bottom of this page to ask us.

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When you get a new laptop or new laptop battery, proper charging, discharging, usage and storage will allow you to maximize your battery's life and capabilities. Before even powering up your laptop for the first time, it is important to know just how to charge and care for your battery in order to get the most out it for as long as you can.

1. Charge & Discharge
   According to CNET authors Asher Moses and Brian Nadel, the first thing you should do with your new laptop is ''let the battery completely drain(5%) before you recharge it''. Letting the battery completely drain(5%) by using it without AC power, and then recharging it to 100 percent before using it again, helps to establish memory within the battery regarding how much of a charge can be held. Do this for at least the first two times when using your laptop on battery power, and repeat as often as you can to get the most out of your battery.
2. Storage
   If you plan to use your laptop as a desktop most of the time, Rick Broida of "PC World" suggests you take the battery out of your laptop and use only AC power. Only put the battery in and charge it whenever you plan on moving the laptop and using it without AC power, because ''if you leave your laptop plugged in 24/7... the battery rarely (if ever) gets a chance to discharge, [so] it loses its capacity to hold a charge''. Charge the battery before moving your laptop, and discharge it completely before recharging again, if you can.
3. Temperature & Climate
   One of the main causes of battery failure is overheating. "PC Magazine's" Erik Rhey suggests that you can avoid overheating by using cooling pads and not placing your laptop on soft surfaces like pillows and blankets. Some batteries are actually designed to sense if they are getting too warm and simply will not charge if they are, so it is in your interest to keep your battery cool. Dust getting into the laptop and clogging the cooling fan can also cause overheating problems, so try to keep the area around your laptop clean. Of course, leaving your laptop in your car where it can become excessively hot can also cause problems, so avoid that as well.
4. Power Settings
   Once you have gotten the hang of charging your batteries, visit your computer's Power Settings in the Control Panel and dim your computer's display, adjust the timeout settings for your display to turn off and for your laptop to sleep, and see if any advanced settings can be changed to really extend your battery life as far as you can.

Yes. The capacity of a battery does not affect its compatibility in anyway. A higher capacity battery will simply power your device for longer before you need to charge it.
It is important to check the dimensions and weight in addition to the capacity because sometimes higher capacity batteries can be larger in size, making them impractical for some uses even though they are compatible.

This number indicates the number of individual cells used to make up the laptop battery. Generally, the more cells, the higher the capacity of the battery.

The upside to having more cells is that your laptop will last a lot longer on a single charge. Unfortunately the downside of having more cells usually means a larger, heavier battery.

Before purchasing a battery with more cells, you need to weigh up the benefits vs the extra size and weight, especially if you carry your laptop around with you all day.