Of all environmental factors, the temperature has the greatest effect on battery charge and discharge behavior. This has to do with the temperature-dependent electrochemical reactions occurring at the electrode/electrolyte interface, which may be considered the heart of the battery. If the temperature decreases, the rate of electrode reaction decreases too. Assuming the battery voltage remains constant, the discharging current drops and thus the power output of the battery.

Low temperatures (e.g. -15oC) will obviously reduce Ni-Cd and Ni-MH battery discharge rate. At -20oC electrolyte is at its freezing point, charge speed will greatly slow down. At low temperature (under -15oC ) charge will raise the internal gas pressure and probably unseal the safety vent. Ambient temperature of 5oC to 30oC is the best range to get effective charge. Generally with temperature rising charge efficiency will become higher. See similar questions...

Breaking In New Batteries - new batteries come in a discharged condition and must be fully charged before use. It is recommended that you fully charge and discharge your new battery two to four times to allow it to reach its maximum rated capacity. Preventing the Memory Effect - Keep your battery healthy by fully charging and then fully discharging it at least once every two to three weeks. Exceptions to the rule are Li-Ion batteries which do not suffer from the Memory Effect. See similar questions...

Keep the battery healthy by fully charging and discharging it at least once every two to three weeks. This helps the battery maintain its maximum capacity. Exceptions to the rule are Li-Ion batteries, which do not suffer from the memory effect. Keep the batteries clean. Clean dirty battery with a cotton swab and alcohol. This helps ensure a good connection between the battery and the portable device. Exercise the Battery. Do not leave the battery dormant for a long period of time. See similar questions...

A6.Different usage applications will use different methods for evaluating a battery's performance. Using a 20 hour rate or the 10 hour rate, you can use 0.05CA or 0.1CA to discharge the battery until the battery reaches a terminal voltage of 10.25 volts. You can then calculate the amp hours to see if the battery fits the specifications or not. For a 5 minutes rate, such as the CCB12V5Ah, you can use a 21 watts/cell discharge till the terminal voltage reaches a terminal voltage of 9. See similar questions...

After you receive the new battery, please charge the battery overnight(or at least 10 hours) before using it. If you plug the power cord to the wall all the time please remove the battery out of your laptop PC in order to save the battery life. See similar questions...