From the nineties to today, from high-end luxury mobile phones become a mass consumer goods, many consumers increasingly dependent on mobile phones. Mobile phone battery brands currently on the market model range, the battery issue has been the quality of the hot consumer complaints, in particular after the opening of the mobile phone network license, there were many mobile phone manufacturers, these manufacturers of batteries for mobile phones supporting the quality is also mixed. According to industry experts, some manufacturers in order to reduce the cost of using low-quality batteries, virtual standard battery capacity, omitting the part of factory inspection, but also some manufacturers of counterfeit brand-name products, a number of low-quality batteries even in the course of the explosion seriously damaged the legitimate rights and interests of consumers. In order to understand the quality of Beijing’s mobile phone battery market conditions, the scientific guide to guide consumption, and promoting the healthy development of the industry, Beijing Consumer Association recently launched a 31 kinds of mobile phone battery comparison tests.
1, test samples and sources
The comparative test samples from the Beijing Consumers Association staff in his capacity as an ordinary consumer of communications equipment from the Beijing random distribution companies to purchase. Sample all the nominal qualified products. Samples related to Beijing, Tianjin, Liaoning, Guangdong, Fujian, Shandong, Sichuan, Hubei and other provinces and cities in eight 29 manufacturers produce 31 kinds of mobile phone ibm thinkpad t43 battery products. Samples, including some of the first wife cell phone manufacturers and mobile phone battery manufacturers supporting the production of batteries, the price from tens of dollars to several hundred dollars range, the basic coverage of the Beijing market selling a major brand mobile phone batteries to compare test results basically reflect the in Beijing marketable product quality mobile phone battery status.
Second, inspection standards and project
The comparison of the test sample commissioned by the Beijing Municipal Information Products Quality Supervision and Inspection Station, according to GB/T18287-2000 “cell phone use lithium-ion ibm thinkpad t43p batterygeneral norm” standard of appearance of the samples, logos, 0.2C5A discharge performance, 1 C5A discharge performance, cross charge protection, over discharge protection, short circuit protection, seven indicators were tested.
3, compare test results
Tested 31 samples, 24 samples of test items all in compliance with national standards, accounting for 77.4% of the total number of samples. The results showed that: Beijing-market mobile phones battery safety performance indicators in general good, may lead to an explosion of low-quality ibm thinkpad t60 battery are not common; well-known brand mobile phone battery quality is satisfactory; reflect the battery capacity of mobile phones are relatively poor indicators, a number of smaller scale of production of virtual manufacturing enterprises standard battery battery capacity is serious. Specific results are as follows:
1, appearance, signs
The national standard for the mobile phone ibm thinkpad t60p battery outer surface should be clean, no mechanical damage, corrosion-free contact; products should be marked with product name, model, nominal voltage, rated capacity, charging limit voltage, the implementation of the standard number, positive and negative polarity, manufacturing the date or batch number, manufacturer name, trademark, warning signs descriptions. The comparison test, 31 samples with three samples of signs incomplete, mainly non-trademark, manufacture date or batch number, charging limit voltage, positive and negative polarity. They are Shenzhen, Hong-Kai Fa Electronics Co., Ltd. produced by non-trademark, the nominal model DAXIAN (1500 mA) ninth generation of nano-lithium polymer batteries, Shenzhen City Friends Winsome Trading Company production of search Leopard license LLST-N95 type (1600 mA) commercial lithium batteries, Shenzhen Electronic Technology Co., Ltd. produced by Carlisle Carlisle card adapter for Nokia BP-6M (N93. ..) type (1280 milliamperes) Lithium-ion batteries.
2,0.2 C5A discharge performance, 1C5A discharge performance
Mobile phone ibm thinkpad r60 battery discharge characteristics that affect an important factor in the use of time in order to discharge time to assess whether the battery nominal capacity of the actual capacity of the battery line, is assessing the merits of the main indicators of quality batteries. National standards require that 0.2C5A discharge performance of the discharge time should be more than 5 hours, 1C5A discharge performance of the discharge time should be more than 51 minutes. The comparison tests of 31 samples, 7 samples 0.2C5A discharge performance indicators did not meet the national standard requirements, five samples 1C5A-discharge performance indicators did not meet the national standards, individual samples of actual test capacity and nominal capacity difference of almost a times, there is a serious virtual auctions. Samples did not meet the national standards are: Da-Lian Daxian Pantech Communication Co., Ltd. DAXIAN (Daxian) brand X600 (1200 mA) Duke of mobile phone batteries, Shenzhen Hong Kai Fa Electronics Co., Ltd. produced by non-trademark, nominal model DAXIAN (1500 mA) ninth generation of nano-lithium polymer batteries, Shenzhen City Friends Winsome Trading Company production of search Leopard license LLST-N95 type (1600 milliamperes) Business lithium batteries, Shenzhen Electronic Technology Co., Ltd production of Carlisle Carlisle Brand Adapter Nokia BP-6M (N93. ..) type (1280 milliamperes) Lithium-ion battery Power Supply Co., Ltd. Shenzhen, Qiao Wei Qiao Wei brand produced by O-NOK N73 L1200H type (1200 milliamperes) Lithium-ion battery Guangdong Power King Electronics Co., Ltd. produced by ALON oron Brand 9300 (1400 milliamperes) Lithium-ion battery, good source of Shenzhen Tong Technology Co., Ltd. produced by mountain red card adapter for Nokia 6280/N93 type (1250 milliamperes) Lithium-ion batteries.
3, over-charge protection, over-discharge protection, short circuit protection
These three indicators reflect the safety of mobile phone battery protection. Overcharge protection assessment battery charger output voltage is too high and current is too large when the safety performance of the battery protection circuit; over-discharge protection, when assessing the battery voltage is too low, the safety performance of the ibm thinkpad r60e battery protection circuit; short-circuit protection assessment battery under normal use in non - security features, such indicators are related to the product of their own safety and user safety. The comparison test, 31 samples of safety performance are in line with the national standards.
The comparison results showed that the regular distribution business sales market, Beijing’s mobile phone batteries that can be guaranteed safety, but in a large number of mobile phone battery products, the capacity of virtual object is common. According to experts, marked phenomenon of virtual manufacturing enterprise first, the main reason for the quality of their products not strict, of the electricity capacity of the core material selection is not strict. Second, some companies selling their products in order to improve, deliberately low-cost, low-capacity battery capacity of elevation, shoddy, to deceive consumers. Third, some of the smaller mobile phone production enterprises, the battery is commissioned processing mode of production, lack of effective quality control tool, easy to be blinded by bad processing enterprises, using low-quality batteries, reduce costs, seq charge好. It is understood that there are some manufacturers in order to reduce the cost of the ibm fru 92p1141 battery protection circuit is not complete or incomplete, resulting in cell phone standby time is short, prone to charge the battery of drums, and other quality problems filling explosion.
Fourth, to remind consumers
1, it is recommended to the regular consumers shopping malls and well-known communications products store to buy cell phone battery products, in particular, do not buy a small roadside shop selling the so-called low-cost supplier brand batteries, to prevent cheated.
2, consumer choice, mobile phone batteries should be carefully inspected product name, trademark, model, factory sites, nominal voltage, rated capacity, charging limit voltage, certification and other marks are complete.
3, consumers should not rely too much on the nominal capacity of the battery. As the battery capacity and ibm thinkpad r32 battery cell the size, weight, a certain relationship, also suggested that caution consumers to buy those batteries and battery weight and dimensions, like ordinary batteries, while the nominal high-capacity battery.
4, consumers purchase mobile phone handset makers often focus too much on propaganda, “stand-by time.” According to experts, advertising in the “standby time” are mostly on a specific network, operating environment, the laboratory data, cell phone user’s actual use of time depends on the mobile phone power consumption, network environment, the battery capacity, man-made factors such as use of the impact of advertising time lag often associated with large, consumers should choose according to their actual needs.
5, consumers buy mobile phone ibm thinkpad r40 batteryshould ask for an invoice, and indicate in detail the name of the model purchased information such as the battery so that quality problems can occur in time activist.
