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SINOLI LITHIUM ION BATTERY TRAINING III

Shenzhen Sinoli Electronic Co.,Ltd | Updated: Sep 16, 2018

SINOLI LITHIUM ION BATTERY TRAINING III:


Q77: What is the multiplier discharge of a battery? What is the hourly rate of battery discharge?


Discharge rate refers to discharge current (A) and rated capacity (A? H) is expressed as the multiplier relation. Hourly rate discharge refers to the number of hours needed to accomplish the rated capacity by a certain output electrical discharge.


Q78: Why do batteries need to be insulated when shooting in winter?


Since batteries in digital cameras are much less active when the temperature is too low, they may not be able to provide the camera's normal operating current, so shooting outdoors in cooler areas, especially


Pay attention to the warmth of the camera or battery.


Q79: Working temperature range of lithium ion battery?

Charging - 10-30-45 ℃ discharge - 55 ℃

Can batteries of different capacity be combined?


If different capacity or use the old and new batteries together, possible leakage, the phenomenon such as zero voltage, this is because in the process of charging, charging capacity differences lead to some battery overcharge, some not fully charged batteries, have a high capacity battery discharge electricity, not put up the low capacity is put, a vicious cycle, cell damage and leakage or low voltage (zero).


Q80: What is an external short circuit and how does it affect battery performance?


The outer two ends of the battery connected on any conductor will cause external short circuit, battery type is different, short circuit may bring different severity consequence. Such as: electrolyte temperature rise, internal pressure rise. If the pressure value exceeds the battery cover voltage, the battery will leak liquid. This condition can seriously damage the battery. If the safety valve fails, it could even explode. Do not short circuit the battery.


Q81: What are the main factors affecting battery life?


01) charge:


When selecting a charger, it is best to use a charger with the correct termination of charging device (such as over-charging time device, negative voltage difference (-dv) cut-off charging and anti-overheating induction device), so as to avoid shortening the service life of the battery due to over-charging. In general, slow charging can extend the battery life more than quick charging.



02) discharge:


A. the depth of discharge is the main factor affecting battery life. The higher the depth of discharge, the shorter the battery life. In other words, as long as the discharge depth is reduced, the battery life can be greatly extended. Therefore, we should avoid putting the battery too low voltage.


B. The battery's service life will be shortened when the battery is driven at high temperature.


C. if the designed electronic equipment cannot completely stop all current, if the equipment is left unused for a long time without taking out the battery, the residual current will sometimes cause excessive battery consumption, resulting in over-discharge of the battery.


D. Batteries with different capacity, chemical structure or charging level, as well as new and old batteries, will discharge too much, and even cause reverse charge.