The main factors affecting the life of the lead-acid battery

⑴ temperature greater impact on the battery. The ambient temperature is too high, the battery will overload produces gas, the temperature is too low, the battery will be pretty cool, it will affect Laptop battery life. Therefore, the general provisions of the ambient temperature around 25 ℃, UPS is also float temperature setting voltage. Practical applications, the battery is generally 5 ℃ ~ 35 ℃ in the office, below or above 5 ℃ to 35 ℃ will greatly reduce battery capacity and shorten battery life.

⑵ deep discharge of battery life also has a great influence. More depth of battery discharges, less the number of recycling activities, and should therefore avoid the use of depth of discharge. Although the UPS has a battery low protection potential, the general single-cell, when discharged to 10.5 V or more, UPS will automatically be closed. However, if the UPS is lightly loaded or discharge any discharge load may cause the depth of battery discharge.

⑶ batteries in the storage, transportation, installation, following the loss of part of the self-discharge capacity. Therefore, after installation before commissioning should be based on the open circuit voltage of the IBM ThinkPad T40 battery to determine the remaining capacity of the battery, then a different approach to supplement charging batteries. Set aside extra batteries every 3 months should be an additional charge. Perhaps by measuring the voltage of the battery open circuit to determine if the battery is good or bad. For 12 V batteries, for example, if the open circuit voltage is above 12.5 V, the energy storage battery, said there are more than 80%, if the open circuit voltage less than 12.5 V You should immediately supplement charge. If the open circuit voltage less than 12V, the battery stores electrical energy, said less than 20%, the battery useless.

⑷ battery charge and discharge generally expressed C, C is the actual value associated with the battery capacity. For example, batteries 100AH, C = 100A. Matsushita Lead-acid maintenance-free battery charging current is 0.1C best on the market, the charging current can not exceed 0.3c. Charging current is too large or too small will affect battery life. The current requirements for general discharge of 0.05C between ~ 3C, UPS, normal use can satisfy this requirement, but must also prevent the occurrence of unexpected situations, such as the battery short-circuit and so on.

⑸ Load Voltage. In the work of backup UPS battery, electricity is in the state of charge under normal circumstances, only the power outage is discharged. To extend the Dell Inspiron E1705 battery, UPS shippers typically use constant pressure to limit the control over the way, the battery is fully charged state to float after each section on the current float is set at 13.6 . If the charging voltage is too high causes the battery before charging, the battery is charging less than the contrary. The charging voltage abnormality may be caused by configuration errors caused by the battery or charger malfunction due. Therefore, when installing the battery, the battery must pay attention to the accuracy of the specifications and quantities of different specifications, different batches of cells do not mix. Do not use inferior charger, plus a charger, but also to consider when installing problem of heat dissipation. Currently, to further improve the life of the battery, UPS has developed and adopted a kind of ABM (Advanced Battery Management) three-stage program of intelligent battery management, ie load is divided over initialization, floating charge and rest three stages: the first step is constant load balance flows, recharge the battery capacity to 90%; second stage is floating Chong Chongdian load capacity battery at 100% and then stops charging, third step is a natural discharge at this stage, the battery using its own leakage current discharge, as the minimum voltage required, and then repeat these three steps. In this way, the nature of changes that were previously fully charged, even after the hp PB994A battery during the day to 24 hours of floating state, thereby extending battery life.

⑹ Following the interview without system battery electrolyte absorption in normal use will not produce any gas, but if the user is misused, causing the battery before recharging it will produce a gas, this time pressure increases the battery, battery pressure valve on top of open, burst out a serious cause of the battery.

⑺ UPS running the process, be careful to control the terminal value of battery voltage, current float value, each battery voltage, battery and the DC bus to ground resistance and the insulating state.

⑻ not individually increase or decrease the number of single charge of battery cells, resulting in the ability of imbalance single battery charge and an uneven, reducing battery life.

⑼ the battery must be installed as far as possible in a clean, fresh, airy, dry, and avoid sunlight, radiators or other heat sources of radiation effects. Batteries should be placed on positive legislation, non-tilt. Each battery must be securely connected between the terminals.

⑽ regularly maintained. The battery in use after a certain time should be inspected regularly, as well as observations of their appearance is abnormal, measurement of the battery voltage is average and so on. If you are not a long term power outage, the battery is always in a state of charge, this would allow the activity of the deterioration of the battery. Thus, although power outages, UPS is also needed on a regular basis to test the discharge of the battery to make it active. Discharge test can usually be done in three months, the practice is UPS with a package - preferably 50% or more, then turn off the electricity, so that UPS is able to discharge the battery, the duration discharge by the battery capacity is usually in terms of a few milliseconds to tens of ms, the discharge to resume electricity supply, continue to charge the VGP-BPS9 battery.

Purchase and use common sense of lead-acid battery for electric bikes

First, choose the right direction

1, see product logos are complete. Including the name of the manufacturer, model specifications, date of manufacture, mark, see if they are consistent within and outside the mark, in particular, to check whether there catchy product identification of the body the production date should pay attention if, in the near future.

2, note the appearance of the VGP-BPS2B battery. See if there is a distortion, cracks, scratches, and signs of leaks. Battery terminals should be clean, no rust, signs must be clear.

3, concerned about the electric car batteries rated capacity marked on. More rated capacity marked on the battery discharge time of the longer battery, it is better not to buy non-rated batteries marked, but pay attention to whether a dedicated electric vehicle, if more capacity marking should be based on design capacity shall prevail.

4, choose well-known businesses, large enterprises branded batteries. Batteries are generally provided by a manufacturer of industrial batteries, different brands, different manufacturers of batteries as other advantages and disadvantages, the price level is also divided. Well known, the size of large companies, technological solid after-sales service is good, battery quality assured.

5, corresponding to the purchase and the VGP-BPS10B battery charger with an intelligent automatic. The charger should automatically adjust the size and timing of recharge is beneficial to prolong battery life.

Secondly, the use of common sense

UPS 1, when used in Start electric car, the wind and uphill, it is the best use of manpower to help cars start from simple models of electric car launched in the wind riding up and high winds should be used when the foot help to reduce the battery charge and prolong their life, luxury models should be slow to start electric vehicles

Start step should not be diverted to turn in the late phases of hard acceleration in the descent, you can switch to electric cars to open. When the electricity shortage, they should reduce the speed of cycling, regardless of when they should not be mounted in the power of the state lacks tension.

2, using electric bike, do not overload. Electric bike’s overall design load of 75kg, which is a single person riding overload results in long VGP-BPS13A/B battery high discharge current, which damages the battery, which is the main reason for the shortened life of the battery.

3, should pay attention to the battery capacity over time and circumstances change. In general, with increasing frequency of use, the battery capacity will be gradually decreased. In the case of low temperatures, the battery capacity is reduced when temperatures can be restored later.

4, master the correct method of charging. Battery suitable temperature from 0 ~ 40 ℃, the charge should be at room temperature. Should pay attention to the charger charging status and a normal load of time to prevent the VGP-BPS9 battery due to charging or over charging, charging abnormal was considered necessary to seek professional help as soon as possible to avoid damage the battery. Cooldown after use, preferably fresh daily as a travel over 20 kilometers an office in a timely manner is preferable not exhausted, recharge isoelectric. Long-dormant, it is necessary to add from time to time on the battery.

5, regular maintenance of the battery. Battery life after a long time, if found low battery, especially when fever battery grave or her own maintenance staff should be invited to open the battery cover, remove the cap rubber alone Giga water 5 ~ 15ml, extended battery life. In addition, models, old and new batteries can not be inconsistent with the use of series or simultaneously, the various manufacturers of batteries can not be mixed. Replace the battery, it should be a group of his replacement.

6, attach importance to the pollution of the battery. Suggested that given the designated recycling of waste batteries, do not carelessly discarded in order to avoid environmental pollution.

Basic Lithium Battery Knowledge

Battery and notes

(1) If the new battery should be a continuous load of 12 hours.

(2) Fully charge and discharge. Cycle three times to awaken a new Laptop battery.

(3) long when using external power. A suggested removing the battery, so as not to affect battery life.

(4) Periodic charge-discharge time away [1 months or more] does not have a computer or found that the battery charge and discharge time shorter, should be made after charging the battery fully discharged usually at least a month, a full-time discharge.

(5) Is preferable to turn off the computer while charging, disconnect the power load in half-way.

(6) To avoid the impact of man, demolition, falls, heat or short-circuit

Lithium-ion battery-related knowledge:

1, lithium-ion battery

Lithium-ion batteries currently liquid lithium-ion battery (LIB) and lithium-ion polymer battery (PLB) categories. Among them, the liquid lithium-ion IBM ThinkPad R50 battery is the Li + intercalation compound as the secondary battery positive and negative. LiCoO2 cathode using lithium compounds LiMn2O4 or the negative of battery - intercalation compounds of carbon. Lithium-ion batteries due to high voltage, small size, light weight, high energy, no memory effect, no pollution, low self-discharge cycle life long and are ideal for energy 21st century.

2, Li-historic ion battery development

Lithium and lithium-ion batteries in the 20th century developed a new battery of high energy. This battery is a lithium metal anode, the cathode with MnO2, SOCl2 (CFX) n and so on. 70 years in practical use. Because of its high energy, battery voltage high operating temperature, long shelf life, etc., has been widely used in military aircraft and civilian small, such as mobile phones, laptops, camcorders, cameras and so on, partly to replace the traditional batteries.

3, Li-Development Prospects of ion battery

Lithium-ion VGP-BPS9 batteries for its unique advantages in performance portable devices such as laptops, cameras, mobile communications are universally applied. At present the development of high capacity lithium-ion batteries in electric vehicle to begin a trial, which should become the 21st century, the power of electric vehicles, one of the engines of change, and a satellite, Aerospace and storage aspects of the energy applied.

4, basic performance of the battery

(1) The battery open circuit voltage

(2) The resistance of the internal battery

(3) The battery voltage

(4) The charging voltage

The charging voltage is the secondary battery charging, the external power added to the battery voltage at both ends.

The basic method of pricing Youheng load current and constant voltage. Usually use the constant current load, the characteristics of the process of charging the load current constant. Whether charging progresses, the active substance has been restored, the reaction zone at the electrode is reduced, the electric polarization has steadily increased.

(5) Battery capacity

Battery capacity refers to the amount of electricity from the battery to get, often C, said unit, said common Ah or mAh. The electrical properties of the Dell Inspiron 1150 battery capacity are an important indicator. The battery capacity is usually divided into theoretical capacity, practical ability and capacity.

The capacity of the battery capacity of the decision by the electrodes if the electrode capacity varies depending on the capacity of the battery capacity that small electrodes, but in no case the sum of positive and negative capabilities.

(6), the battery performance and storage life

One of the main characteristics of sources of chemical energy is used to release electrical energy can be stored when not in power. The so-called secondary battery for storage performance is to maintain the ability to recharge your batteries.

For the secondary battery to measure battery performance good or bad, when life is an important parameter. Following a battery and secondary discharge is called a cycle (or have been in this cycle). At a certain load and discharge system, the battery capacity reaches a limit value is fixed before the battery can withstand the charge and discharge once known as the life cycle of secondary batteries. Lithium-ion batteries have excellent storage performance and long life cycle.