First Lithium Ion battery for Motive Power

The Hawker XFC-Li is the first motive power battery from EnerSys to utilise advanced lithium-ion technology. It is a 24V battery with 38Ah capacity that incorporates cells with a lithium iron phosphate (LiFePO4) cathode and graphite anode with an inherently safe lithium-ion electrolyte. This delivers significant benefits compared with conventional units including greater power density, longer pack life and excellent performance at low temperatures. The battery can be fully recharged in less than one hour from 80 per cent depth of discharge and short, opportunity charges are readily accepted due to its very low internal resistance.

Each Hawker XFC-Li is equipped with a battery management system (BMS) for continuous monitoring of the individual cells to ensure correct use and safe operation with protection against over temperature, overcharge, over voltage, under voltage and short circuits. The BMS also incorporates cell balancing technology which promotes maximum performance throughout the battery’s service life. An on-board LED provides state of charge data while links with external monitoring and management systems can be enabled by an integrated CAN bus.

The second new battery is a 24V model with 82Ah capacity which is based on the same proven thin plate pure lead (TPPL) technology used in the existing Hawker XFC range. Its blocs incorporate pure lead plates which are much thinner than conventional lead calcium grids. These have lower impedance which enables higher current flows in recharge and discharge modes. The electrolyte is absorbed in a superior quality microporous glass mat separator with high absorption and stability for enhanced cyclic capability. These attributes ensure a full recharge is completed in under three hours from 60 per cent depth of discharge.



The battery pack incorporates a low voltage alarm – LVA. This small electronic device is positioned between the positive and negative cables and warns the operator whenever the battery reaches a specific depth of discharge that a recharge is required. The battery pack also includes a Wi-IQ? monitoring device which stores comprehensive operational records. This information can be transferred to external battery management applications using wireless communications or a USB port for further analysis.

Both models are supplied with a high frequency ups backup power integrated into the top compartment of the battery tray. High frequency charging in inherently more efficient than traditional methods while the charger ensures the correct parameters for rapid recharge and opportunity charging whatever the battery’s state of discharge. By comparison, conventional batteries only provide optimum performance when discharged to a specific level before being fully recharged for 8-12 hours. This often means extra batteries are required to support continuous equipment availability or can lead to interruptions in charging which is potentially damaging to conventional battery technologies.

High-frequency charging also ensures the batteries consume less energy, with resultant lower electricity costs, and have a smaller carbon footprint than conventional units. The batteries are totally maintenance free and require no topping-up with water for low overall cost of ownership while minimum gassing means they can be used in confined spaces and public areas.

www.everexceedcorp.com develop, design, and manufacture products to provide safe, reliable power solutions worldwide. EverExceed has operations on six continents including three manufacturing plants and two research & development centers, allowing our products be available and enjoy technical support all over the world. EverExceed now offers a full range of lead acid batteries (network & motive power) and Nickel Cadmium batteries covering a wide range of applications from sophisticated telecommunications, uninterruptible power supplies, AGV to emergency lighting and security applications, and offers a full range of Monocrystalline, Polycrystalline Solar Modules combined with PWM/MPPT solar controllers, Grid-off/Grid-tied inverter covering a wide range of applications from sophisticated telecommunications, Power Electricity, Remote Area Electricity applications.

This article is come from:http://www.game-dice.net/first-lithium-ion-battery-for-motive-power/

Battery Maintenance

The Motive Power Battery Life

The battery life is refers to the use of a period of time, charge and discharge capacity decreased to 80% of nominal capacity prior to the charge and discharge, not discharge or complete failure is the life of the motive power battery; self discharge rate refers to the battery full charge is placed for a long time without the case of slow self discharge phenomenon. Low self-discharge rate show that long time after placing capacity decreases little. Cell function in normal play with our television, audio-visual workers in the daily work of the proper use and careful maintenance of closely related, so the use and maintenance problems should cause our attention.

The Daily Work of Power

In their daily work, should be familiar with their use of cell type, it has the basic characteristics and performance. It can guide us to correctly use and maintenance, have very important sense, to extend the service life of the battery is very important. When charging, the best control in 10 ℃ temperature 30 ℃, right above 30 degrees C best to take measures to cool down the battery, to avoid overheating deformation; And the room temperature below 5 degrees Celsius, will cause the charge is insufficient, affect the service life of the battery.


The Maintenance of Nickel Cadmium Cell

Battery after a period of use, due to different degrees of aging discharge and more or less existence under charge and decreased performance, general nickel-cadmium batteries in about 10 times the charge / discharge cycle, a charge. Method to extend the charging time than the normal charging time is twice. Specific examples are as follows: SONY BC--1WA (B) NP-1 charger for battery charging, in Green Lantern flashing for fast charging, green light stops flashing when the end of long light fast charge trickle charging, charging time extension of drip, drip charging time for charging time, over charging time to 3-4 hours is appropriate. Battery charge / discharge shall be in strict accordance with the requirements of standardized operation, not long after filling, or often inadequate charging. Discharge is not through, the battery when used in the long-term small current depth of discharge or short circuit is caused to shorten the life of battery capacity decline, the important factors. If nickel cadmium cell go on like this will not only affect the use of illegal operation, and will certainly affect the capacity and cycle life of battery. In use when the battery alarm indication lamp flashing alarm, should be timely replacement of batteries, to avoid excess discharge of battery. Nickel cadmium batteries without charging the need to save, but shall discharge the battery voltage to terminate before the package is stored in the original packaging cartons or cloth, paper packaging, placed in dry, ventilated place store.

This article is come from: http://www.chinaphoneparts.com/index.php/battery-maintenance.htm