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Lithium-iron battery by using different materials and processes as well as rigorous quality control to varying degrees, but it was a big difference. In particular, greater price difference. The prices between high and low are almost twice.

      Why is there such a difference in Na? So why lithium iron batteries will be so good cheer? Where is the difference? How to choose?

      The production of lithium-iron battery and environmental requirements of the production process are more stringent, a neglect of non-performing rate slightly will improve immediately reduce the price it had lower standards. Because of this, some grade B or C grade will flow on the market. As lithium-iron battery is still a relatively new, many buyers today do not know whether it is also, therefore, wishes to provide some distinguishing features of this method and the importance of the battery for your reference.

      Lithium-iron battery is good or bad judgments, the most basic points that can be analyzed from the following:

      1. Uniformity

      Battery harder to do is homogeneous, but the largest chain of battery is also homogeneous. If the 10 batteries strung, there is a first to arrive on-protection standards of the discharge, while several others are still plenty of power, this string of battery pack that can power capability is not all over low? Were made with a first place is the same reasoning.

The inconsistency of the  BATCL50L battery without the added protection board is very easily broken, it is easy to overload or excessive discharge; have unprotected board battery pack may be using more electricity capacity will also be more weak. There is also a lot of battery factory launched the production of batteries, but it was not necessary for the chain of causes product group. And the whole manufacturing process is very strict to achieve uniformity in controlling.

      Simple Test Method: Series 4 batteries, so 1C and 3C charge-discharge, and the concept of charge-discharge process of the investigation, the battery voltage to see if differences in the lifting of the situation will. It is better to do 4 to 5 times.

      2. Self-discharge rate

      Lithium iron battery self-discharge rate, the theoretical value must be less than 2% per month over this value is not a good VGP-BPS2B battery. Not a problem in the method is to use the material in question.

      Low-rate self-discharge has always been the characteristics of lithium-iron battery, if self-discharge rate, when you install finished goods delivered to customer sites, he had no power, and customers feel? And a lot of energy wasted.

Channel in the group context, it will affect the balance of the battery, the battery can be installed less, and that the battery life is reduced.

      Method of simple test: take roughly equal to the capacity of the battery 10, the congestion charge put aside for a month after switching on, then measure the value of the ability to calculate the self-discharge rate. (The sets aside a call after that amount of voltage value, what changes in battery voltage.)

      3. Charge-discharge rate (load C-rate)

      Quick charge and discharge is actually a lithium-iron batteries, one of the most advantageous because of its fast charge and discharge, which has very similar characteristics and a super capacitor but its super-capacitor capacitor important than hundreds of times. If the charge-discharge characteristics sufficiently rapid, the use of lithium-iron battery is not very meaningful.

In general, the charging rate of good quality lithium-iron battery is 3C (about 20 minutes power saturation charge), while the speed can reach 30 degrees centigrade. Special needs can achieve a higher magnification of the charge and discharge. The above situation is quite the battery life is the premise.

Method of simple test is, in order to manufacturer specifications can be used to test the maximum load, the rate of discharge, if the testing process, the cells fire very serious, then the quality of A1045 batteries n is not very good.

      4. Stages

      In general, the user can not be measured, and can only trust the data supplied by the manufacturer or appointed by a professional unit on behalf of the measure. Good quality lithium-iron batteries, in 3000 the use of 1C charge cycles and discharge its electricity capacity; mitigation will be less than 15%.

      In short, the lithium iron Dolphin alone, the problem spots are not large, but after the series parallel connection to use and the features described above should give special attention to the. Especially in the high strings high voltage batteries power capacity in the group, but also pay particular attention to the quality of batteries.

      The world’s leading manufacturer of solar batteries, German Q-Cells CEO Anton Milner HE said in an interview, predicted the current situation in the low-cost, under present (2009) year is expected to increase demand for solar batteries, but also stressed that, as unstable market conditions may be too early to claim a profit situation.

      Milner says: “We can see that the market is recovering, sales in good condition.” But at the same time that current prices are low, profitability is still unstable. He added that the second half of this year should be better than the first half, but declined to give a new forecast for the content.  

      In mid-July, when Q-Cells will be this year sales target for the withdrawal, while in the previous six months, is also expected to reduce the sales prospects were three times more, and since then the company would have hoped that the report did not open new perspectives. A year ago, the solar battery market is hot, when sales of Q-Cells are expected to worth about 22.5 billion euros.  

      The solar thinkpad battery during the past year as much as 55% of the price reduction, so that the first half of this year, the company’s revenues fell 1 / 3-366000000 euros. The decline in sales, and suffer huge asset impairment, earnings of companies in the first half saw the great loss of 700 million euros.  

      Milner said that the battery may be short-term prices will remain unchanged, it is estimated there will be no further significant price cuts.  

      Milner wants to Q-Cells was established by the manufacturer of solar batteries, the transformation of solar energy in an integrated, making the company a more solid basis. In 2011, company revenues will be only 1 / 4 from solar batteries is relatively under activity of the battery in 2007, when almost all the revenue streams of the company.  

      Milner said: “The manufacturer has focused on a single hp 371785-001 battery production activities is a mode of operation of a bygone era.” But he always said that the company will continue to maintain market share in this sector.  

      Q-Cells to launch restructuring plan to reduce by about 20% of the number of employees and close at Thalheim plant four production lines. Milner said: “When the local factory layoffs, originally scheduled for the end of the year, but has yet to spend a few months.”

People afraid of cold, electrical appliances are also afraid of cold? In winter, low temperatures, some people are usually used in electronic products has emerged as unusual electric cars more and more without riding, cell phone, MP3, portable computers require refills frequent. Maintenance personnel have said that the battery is also afraid of cold.

Mr. Zhang Guilin public electric car batteries just new ones will soon feel the battery without having recently used. Mr. Zhang said that the car had a single battery charge, to work more than sufficient to run four times, but this time, but the clear impression that the car is loose.

Electric point of vehicle maintenance for the technical staff, said: “Recently, due to lack of battery power coming to extensive public consultation, most of them reflect their own without using the car battery, and some even suspect that the renovation of old batteries to buy. In fact, winter electric capacity reduction of the car battery is a normal phenomenon. ”

The technical staff has explained that “electric cars are mainly used in lead acid batteries. This is the best working environment for the Dell Inspiron 8500 battery temperature is 15 ℃ – 40 ℃. Below this temperature, the storage capacity of the battery will be reduced. The lowest temperature of power the most obvious decrease in winter low temperature, electric vehicles would also reduce the travel distance, until the temperature rise will be restored. Today, batteries electric vehicle device isolation has not yet opened to universal coverage. To ensure the normal use of electric vehicles, the simplest approach is to charge users in a timely manner. ”

In fact, the winter, not only lead acid batteries used in electric vehicles afraid of cold, cell phones, MP3, laptop, lithium batteries are also afraid of cold.

Qin mobile phone before the public two days to recharge a hp 371785-001 battery, and now you have to recharge every day and sometimes can not be recharged inside. In this regard, the maintenance staff of batteries, said: “Currently, most mobile phones and laptops use lithium-ion batteries. In a time of low temperatures, lithium batteries will be a sharp drop in activity. This has led to lithium batteries have been locked, power is not only put out so can not be recharged inside. ”

Since the battery is too afraid of cold, for normal use, you can give them, “Paul the heat.” Maintenance staff, said: “When it occurs, the user is easy to damage if the force charge the battery. To ensure the normal operation of electronic products, mobile users can be mobile, MP3 small electronic products such as cash, with body temperature to maintain the temperature lithium batteries. As a laptop as increased size of electronic products, it can be removed the thinkpad battery, the battery placed in warmer places, hitherto responsible when using it. “