Digital battery

Camera battery digital battery commonly used in lithium-ion batteries, batteries nickel hydrogen, nickel-chromium batteries, alkaline batteries, etc … Most digital cameras use batteries AA Ni-MH Laptop battery to do.

 

1, Ni-MH battery features:

 

Nickel-metal hydride batteries (NIMH) is one of modern electronics, the battery the most widely used, a large green with a unique ability, the discharge characteristics of a smooth, high universality, heat a little and so on. The disadvantage is that large, self-weight important.

 

2, Ni-MH to self:

 

Ni-MH battery nominal voltage of 1.2 V, in the case of sufficient power to 1.35 V, with Class AA regular alkaline battery are similar, essentially universal, Ni-discharge characteristics of MH battery are very good, very smooth discharge curve, consumption of electricity is about to end, the voltage drops abruptly, which is close to the nickel chromium batteries, but not as good as nickel discharge current instantly piles of chromium. In addition, nickel-metal hydride batteries used mercury-free design, which is of great importance to environmental protection.

 

3, Ni-MH battery structure:

 

AA Ni-MH VGP-BPS9 battery with the same form as ordinary AA batteries. With nickel chromium batteries, like nickel-metal hydride batteries used reversible chemical reaction to reach the charge and discharge process. Therefore, in the process of loading and unloading of the battery will produce a large number of gas inside the battery internal pressure is relatively high, therefore, nickel-hydride batteries are used in metal in the design of the exhaust vent to prevent excessive internal pressure caused by an explosion. Currently, we have been in contact with GP series battery, do not see how the tube, because the battery is installed on top of a circular plastic film used to prevent blockages and prevent the positive vent cap Hull with the negative short-circuit.

 

4, the battery memory effect:

 

The effect of so-called memory refers to the battery charging and discharging process, the chemical composition of the internal battery is determined in a region can not continue to produce a chemical reaction phenomenon. With an example: When the battery is fully charged, it can be a continuous stream of 60 minutes. Now we’ll use this section to conduct the VGP-BPS13/S battery of this electric discharge, discharge to 30 minutes to stop, and then this part of the battery to charge a good 30 minutes after powering up continue to perform, are not completely discharged each time, after N repeated operations The batteries have a memory effect, the process used in the future, when the discharge of the battery after 30 minutes, more output current, which is the battery capacity of this section reduced by half. Of course, we now use nickel-metal hydride batteries in general, this phenomenon do not occur, because the chemical composition of nickel-hydride batteries and nickel metal battery chromium different. Ni-Cr memory effect the battery is very serious.

 

5, the battery:

 

Is slightly different and the Ni-Cr, Ni-Cr battery is a constant pulse of current to recharge, while the nickel-hydride batteries in metal using a wavelet, the relatively smooth current to recharge. In emergencies, the two shippers are interoperable. Charge should be to control the charging current appropriate, how to estimate the current load properly done? This depends on the battery capacity to decide. In general, civil standard battery 16 hours to charge, charge current is: VGP-BPS9/B battery capacity / 10, units mA. There are fast charge, fast charge current standard of 2.5 ~ 5 times, there is no uniform standard. Our selection of chargers, they should try using the standard charger, how to determine the load current chargers do? When we buy a magazine, looking for a JS or have a multimeter multimeter, charger plug supply, multimeter affected DC 500mA stall, desktop charger red pen and then the film cathode of the battery, pen blackboard, and negative films, which can be approached by reading multimeter to determine feeder load current, because the internal resistance of the battery is low, so close to the actual load meter reading in progress. You can also use a number of self-feeder, the advantage of such a charger stops automatically loads the son not to worry people. There is also a charger with a trickle charge is a function, which is an electric charge in good condition, the charger automatically uses less than 10 times the current standard of care for small current continues to maintain the battery charge which is to maintain the battery capacity and prolong the life of the battery well. Al-Sahaf GP has recommended that such a combination of pricing Po charger recommended. In addition, we should try to avoid the use of fast-charge, fast charge, the chemical reaction inside of the battery is very severe, the temperature is high, which will accelerate the aging of the battery and shorten battery life. However, when you exit or emergency charger fast, but very useful oh.

 

6, the discharge of the battery:

 

Were fed the exercise, and consumption. The VGP-BPS9A/B battery is the same charge of electricity, we must pay. In addition to the normal discharge in outdoor use, why do we still run the battery to discharge it? Please come listen to me 11. When our camera due to run out of batteries needed to recharge the battery when we find that these batteries run out in other electrical devices can continue to use? In addition, for each cell the same as that used in the electrical length of time-varying? This indicates a problem is the capacity of these batteries is inconsistent. Why is there such a situation? The reason is: we use our appliances, most are two or more cells of the battery is to link the battery packs in accordance with Ohm’s law, one can see that throughout the series circuit current is equal, the internal resistance of each cell can not be fully compatible with (even at the same time, the same production line for batteries), then the voltage drop at both ends of each section and the power consumption of battery is not completely the same. This has led to the battery in the same imbalance in the relationship between the circuit, eventually leading to one or more batteries in the long “enough to eat, could not stop,” the State until that it is damaged. The reason we display on the battery discharge, while abhorrent to eliminate memory effect, on the other, so that each section of the battery as much as possible to reach equilibrium, with full, finished with release, work synchronously. So how can we discharge? Please keep in mind this truth: “discharge, we must separate each section of the discharge of the VGP-BPS9A battery!” Otherwise, cons-productive, not as good as letting go. Discharge resistor or small bulbs can be purely resistive components such as resistance controlled discharge at 1.5 to 4 ohms, slow discharge big, too small to heat the battery. In practice, it is recommended to use three 3.8V parallel beads the electric discharge lamp, a resistance of 1.7 ohms at this time, discharge current of 700mA, less than 10 minutes, the lights went on discharge is completed, it is intuitive. You can also use the method of resistance + discharge bulb, Shi measure the resistance controlled at between 1.5 and 4 ohms on it. We can be converted to produce low discharge of the battery charger of the quality we want is to buy charger less (about 5 million euros) for a better selection of housing and support this amendment, then remove the internal battery charger for all electronic components, retaining only the circuit board and watching the battery then welded to both ends of each VGP-BPS8A battery clip with our light bulbs or resistance and so on, so we put on the equipment yourself better.

 

7, battery care:

 

In the process of using the battery, following the release of “full full” principle, do not eat too full, do not be too tired. Beware of the battery shorted on, this is very dangerous. Do not tear the skin in plastic drums, as this may easily lead to a short circuit, this one is very dangerous. Do not disassemble the battery or the battery in fire. A long time does not use the battery must be filled with storage, the reopening of the first discharge, then charge to use. Try to match the use. If we could do the above, we will always keep the battery in good condition, the best services for the majority of DX.

 

8, the battery of purchase:

 

Buy batteries, in addition to a pair of piercing eyes, we must also note the following points: ① Select JS confidence, at least the assurance; ② need to choose according to their abilities, some of the best choices for large capacity; ③ Choose well known brand battery;