Alkaline manganese

Alkaline manganese laptop battery round round 2% zinc carbon batteries <4%
About 1% of lithium-ion Ni-Cd / Ni-MH battery <35%
What is a short-circuit, short circuit impact on battery performance?
Battery connected to any conductor at both ends of the external short circuit can cause the Hp laptop battery type, short-circuit may have the consequences of varying degrees of seriousness. Such as: electrolyte temperature rise, such as internal pressure increases, air pressure value in excess of battery voltage value blocks , the battery will be leakage. This is a serious damage to the battery. If the safety valve failure, and may even cause an explosion. not to an external short-circuit the battery.
What is a memory effect and how to eliminate the memory effect?
Memory effect for the purposes of nickel-cadmium Hp F4098A battery, as the traditional sintering process is extremely negative-type, coarse grain cadmium, nickel-cadmium batteries if they are fully discharged before re-charging, easy grain cadmium battery of poly IC the formation of sub-discharge when the discharge platform. discharge the battery will be stored in this platform and will be in the next cycle as the end of discharge, although the capacity of the battery itself can discharge the battery to the lower platform. in the future the process of battery discharge will only remember the low-volume. the same in every use, any incomplete discharge will deepen the effect, so that the capacity of the Hp F4809A battery becomes lower
To get rid of this effect, there are two ways, first, the use of small current depth of discharge (such as release 0.1C to 0V) First, the use of high-current charge-discharge (for example, 1C) several times.
Zero battery voltage or low voltage may be reasons for that?
1. The battery to external short-circuit or overcharge, anti-charge (mandatory take-off);
2. Batteries by continuous high-rate high-current charge-off, resulting in expansion of the battery very core, is direct contact with negative short-circuit;
3. Internal short-circuit the Hp F4812A battery, or micro-short-circuit, such as: positive and negative films have a burr penetration divide short contact paper, negative film is placed properly, a short circuit caused by contact with a pole piece, or a short circuit steel cathode contact film, negative electrode powder into the diaphragm out of paper , divide paper in itself flawed, very positive piece of negative short-ear contact.
Zero-voltage battery or low voltage may be what causes?
1. Whether the single zero-voltage Hp 319411-001 battery
2. Plug short circuit, open circuit, not connected with the plug
3. Never lead and battery
4. Battery internal connection error, connection between the chip and battery leakage welding.
5. Electronic components to connect the internal battery is incorrect, damaged
Batteries, rechargeable battery power may not enter the reasons for that?
1. The battery voltage or zero-zero-voltage battery pack in the Compaq Presario 2100 battery (compaq 2100 battery)
2. Battery connection error, the internal electronic components, circuit protection unusual
3. Recharging equipment failure, no output current
4. External factors lead to low charging efficiency (such as low or high temperature)
Battery, battery pack may be unable to discharge the reasons for that?
1. Battery as the storage, use, life decay
2. Recharging or charging less than
3. The ambient temperature is too low
4. Discharge less efficient, such as the large current discharge due to internal Compaq Presario 2500 battery (compaq 2500 battery) when the ordinary substances could not keep pace with the proliferation of reaction speed, causing the drastic drop in voltage can produce electricity
When the battery is full of why a sharp rise in temperature, voltage dips Why?
When the battery is fully charged and then continue to charge-off is necessary and sufficient, as the positive electrode Ni (OH) 2 has been almost wholly transformed into NiOOH, battery potential temperature in the balance of this value (maximum), when the external constant current charge-off to make arising from OH-oxidation of oxygen.
Chemical reaction: 4OH-+ eO2 +2 H2O + heat
Divide the production of oxygen through the paper and have a cadmium anode composite:
2Cd + O22CdO + heat
Reaction of the compound a lot of heat, causing the Compaq Presario NX9010 battery temperature of the system. Therefore, at this time there is a sharp temperature rise. And as a result of the higher temperature, the lower the equilibrium potential battery, the battery temperature rise will inevitably lead to decline in equilibrium potential, so dump when the existence of the phenomenon of the battery voltage.
Point at the end of the battery, convex belly, and even the possibility of leakage due to what?
1. Overcharge the battery, especially for high-rate high-current charge-off
2. Be compelled to have put the battery
What is the explosion of the battery and how to prevent battery explosion?
Any part of the battery within the instantaneous discharge of solid material, was pushed away from the Compaq Presario NX9000 battery to more than 25cm distance, called the explosion. Discriminant battery explosion or not, the following experimental conditions. Will be a network of experimental hooded batteries, battery live in the middle, away from the network of cover for either side of 25cm. net density of 6-7 root / cm, a diameter of cable used 0.25mm soft aluminum, if the non-solid part of the experiment through the network mask to prove that the battery did not explode.
The protection of the type of battery components and their respective advantages and disadvantages of that?
The following are several common components of the battery to protect the performance comparison:
* Thermal switch (PTC): used as a Hp F2299A battery of high-current protection circuit that it can rapidly induced changes in currents and temperature, the temperature is too high or too much current can the switch in Bimetal temperature switch rating , beyond metal, used batteries and protect the role of electrical appliances, due to sheet metal may not be reset after the escape, resulting in battery can not work.
* Over-current protection device (PTC): is too large for the battery-current protection, the device with increasing temperature, a linear variable resistor, and when the current or temperature to a certain value, the resistance mutation (large ), so that changes to the mA current level until the temperature dropped, will return to normal, also can be used as electrical connection to the battery pack film series, but its price is higher
* Fuse: Current and temperature sensor circuit, when the circuit current rating or the battery more than the temperature rise to a certain value, the fuse fuse to disconnect the circuit in order to protect the Hp F3172A battery from damage and the use of electrical appliances. Fuse after the fuse can not be restored, the need for timely replacement is too much trouble.