subject: battery Capacity used to indicate the battery charge and discharge [print this page] Second, the battery charging Glossary: Laptop Battery acer Laptop Battery
1, the charge rate (C-rate)
Capacity C is the first letter, used to indicate the battery charge and discharge current when the size of the value. For example: charging the battery when the rated capacity of 1100mAh, it means that in order to 1100mAh (1C) discharge time of 1 hour and sustainable, such as the 200mA (0.2C) discharge time of 5 hours of sustainable, charge control can be calculated here.
2, termination voltage (Cut-off discharge voltage)
Means the battery discharge when the battery voltage drops to the lowest appropriate to continue the work of discharge voltage. According to different battery types and different discharge conditions, the battery capacity and life requirements are also different, so the termination of the provisions of the battery discharge voltage is not the same.
3, the open circuit voltage (Open circuit voltage OCV)
When the battery does not discharge the battery potential difference between the two poles is called the open circuit voltage. Battery open circuit voltage, will by on the battery varies with the electrolyte material, if the battery positive and negative of the same material, then no matter how big the size of the battery, the changes in geometry, from the open circuit voltage are the same.
4, discharge depth (Depth of discharge DOD)
In the battery during the battery's capacity release percentage of its rated capacity is called depth of discharge. The level of depth of discharge and secondary battery charge life has a deep relationship, when the secondary battery discharge depth of the deeper, more of its charge life is short, so should avoid the use of depth of discharge.
5, discharge (Over discharge)
If the battery in the discharge process, more than the battery voltage discharge of the termination, but also Jixu discharge they may lead to the battery inner pressure, Zheng, negative Huoxingwuzhi reversible Zaodao damage to the battery capacity of production Mingxianjianshao.
6, overcharge (Over charge)
Battery charging, after reaching the full state, if continued to charge the battery inner pressure can cause the battery deformation, occurred overnight, and so on, battery performance will be significantly reduced and damage.
7, the energy density (Energy density) SONY NP-55 Battery SONY NP-FM70 Battery SONY NP-33 Battery
The average unit cell volume or quality of the release of energy. Generally in the same volume, the energy density of lithium-ion battery is 2.5 times the nickel-cadmium batteries, nickel-hydrogen battery is 1.8 times, so in the case of equal capacity battery, lithium ion battery will be higher than nickel-cadmium, nickel hydrogen batteries smaller and lighter.
8, self-discharge (Self discharge)
Regardless of whether the battery was used in the state, for various reasons, would give rise to the phenomenon of the loss of their power. If calculated in units of a month, then self-discharge of lithium-ion battery is about 1% -2%, Ni-MH battery self-discharge of about 3% -5%.
battery Capacity used to indicate the battery charge and discharge
