Sunday, March 6, 2011

Zero-voltage or low battery voltage of the possible reasons

Zero-voltage or low battery voltage of the possible reasons for what?

(1) whether a single cell zero-voltage branch

(2) plug short circuit, open circuit or bad connection with the plug

(3) lead and battery Sealing-off or a cold solder joint

(4) batteries such as Sony VGP-BPL2 battery, Sony VGP-BPS2 battery, Sony VGP-BPS3 battery, Sony VGP-BPS5 battery, Sony VGP-BPS8 battery, Sony VGP-BPS9 battery, Sony PCG-R505 battery, Sony PCG-V505 battery, Sony PCG-Z505 battery internal connection error, the connection between the chip and battery drain welding, cold solder joint, Sealing-off, etc.

(5) The electronic components inside the battery connection is not correct or damaged


Can not be recharged battery into the Battery power may be What is the reason?

(1) battery to zero voltage or zero-voltage battery in the battery pack

(2) The battery pack connection error, the internal electronic components, protection circuit abnormalities

(3) The charging equipment failure, no output current

(4) External factors leading to the charging efficiency is too low (such as low or high temperature)


Battery Group is unable to discharge the possible reasons for that?

(1) battery after the storage, use, lifetime decay

(2) The charge or charge less than

(3) The ambient temperature is too low

(4) The discharge efficiency is low (such as the large current discharge due to internal material and the proliferation of normal cells fast enough reaction speed, causing a sharp drop in voltage electricity can not be released).


Why does the battery is fully charged when the temperatures soar? Voltage dips Why?

When the nickel-cadmium rechargeable battery is fully charged before continuing fall-off charge, due to the positive Ni (OH) 2 has been almost completely converted to NiOOH, cell potential at this temperature reaches a balance of value (max), this time outside the constant current overcharge to OH-oxidation produces the oxygen.

Chemical Reaction: 4OH-- e → O2 + 2H2O + heat

The production of oxygen through the separator paper and the negative cadmium compound produced:

2Cd + O2 → 2CdO + heat

The combination reaction generated a lot of heat, but the Battery temperature of the entire system. Therefore, at this time there is a sharp rise in temperature phenomenon. And because the higher the temperature the lower the equilibrium potential of the battery, it will inevitably lead to cell equilibrium potential temperature dropped, so at this time there is the battery voltage dips phenomenon.


Convex belly drum at the end of the battery leakage or the possible reasons for what?

(1) The battery is overcharging, especially high-magnification high-current continuous overcharge

(2) The battery is forced over-discharge


What is the explosion of the battery How to prevent battery explosion?

The battery inside the moment any part of the solid material discharged from the batteries were pushed up to more than 25cm distance, called the explosion. Determine whether or not the battery explosion, using the following conditions experiment. Will be a net covering the test battery, the Battery lives in the middle, away from the net on either side of the hood 25cm. Net density of 6-7 roots / cm, network cable with a diameter of 0.25mm soft aluminum, if the experiment without solid part through the network mask to prove that the battery did not explode.


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