STANBURY

INFINITY

RAPID

CHARGER

AT NO COST?

Look At This

ELIMINATE unproductive time

changing batteries.

ELIMINATE spare batteries.

ELIMINATE battery changing

equipment.

ELIMINATE unproductive space

storing batteries.

ELIMINATE accidents changing batteries.

ELIMINATE unnecessary capital expenditure.

Pay back period as low as 18 months possible.

I N F I N I T Y

R A P I D C H A R G E R

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COLLECT A BONUS

These High Efficiency chargers use less power.

They draw lower peak power.

Filtered charging current results in cooler batteries.

Cooler batteries mean longer life.

Charge batteries at meal and tea breaks.

Several nation wide companies in the USA are now using these chargers extensively.

Kroger Inc. after extensive in house comparative testing has chosen Stanbury as the charger for use in their group.

In addition to Kroger Sysco, Costco, Rite Aid, and US Cold Stores are steadily expanding their use of Stanbury chargers.

Within the list of customers above are customers of most major battery companies, and battery warranty is never in question.

Owners are reporting a high level of operator satisfaction with Stanbury Rapid chargers.

There are some sites that are not suitable for rapid charging but many are.  If your site is suitable there is nothing to be lost and all to be gained by changing to rapid charging.

THE NEW CHARGING STORY.

The electric car research program in California brought to light some very interesting and useful aspects of battery charging. It was realized that the effectiveness and efficiency of charging varied throughout the charging cycle.

It was recognized that the least wear and tear occurred if the battery could be operated in the range between 80% and 20% of a full charge.

Between 50% and 80% was even better. Also within this range a battery can accept, and use efficiently, a much higher rate of charge resulting in safe faster charging.

Operating a battery below 20% capacity has several undesirable results including reduced efficiency so that more and expensive electrical power is required to effect the chemical change. This causes increased heating, sulfation, and added mechanical stresses, all of which reduce battery life and waste expensive electric power.

At the other end of the spectrum, operating the battery in the 80% to 100% range has some undesirable side effects.

This part of the range is what is referred to as the gassing phase and is not an efficient chemical conversation part of the cycle. Much of the expensive electrical energy used goes into heat as well as breaking down water in the electrolyte into oxygen and hydrogen gases. However some gassing, but not excessive gassing, is essential to prevent sulfation and to mix the electrolyte.

The materials handling industry came to see that in so many cases making use of this realization would be exceedingly convenient and valuable. Work the battery between 20% and 80% charged and charge it fast. It would do away with much battery changing with the attendant waste of time, it would do away with spare batteries and battery rooms, it would do a better job more efficiently, it would be more staff friendly, and have reduced capital requirement.

Is it any wonder that in USA at present there is widespread conversion from conventional charging to Rapid Opportunity Charging and this conversion is steadily gaining momentum? It is also interesting that after only four years in USA, Stanbury Electrical Engineering Ltd. with their Infinity charger leads the pack.

To take advantage of this development use a special profile Rapid charger and charge the battery at 25% or 30% of the batteries amp hour capacity instead of the traditional 17%. Charge the battery at every tea or meal break as well as during slack periods.

The INFINITY charger is built with a charging profile of Constant Power for the bulk charge during which the battery voltage gradually rises.

This is followed by a Constant Voltage stage once gassing voltage is reached.

Once in the Constant Voltage stage the charging current gradually reduces as the state of charge advances until a predetermined current is reached.

Upon reaching that current the charger goes into a Constant Current stage and the battery voltage starts to gradually rise again. The voltage continues to rise until the chemical change taking place in the battery is completed, at which point the voltage stops rising and the charger detects a fully charged battery and stops the charge.

These chargers are identified by the model code which starts with the letters PEI. The letters PEI signify the charging profile, P for Constant Power, E for Constant Voltage, and I for Constant Current. Two numbers follow the letters and these signify the number of cells in the battery.

After that there are 3 or 4 numbers which indicate the rated ampere hour capacity of the battery. Next is the letter R which indicates a Rapid Charger. The two numbers following R indicate the percentage of the battery capacity that charging starts at on a flat battery

For an example a model PEI18/1000R30 would have a PEI charging profile for an 18 cell battery. The initial charging current would be 30% of the battery capacity which is 300 amps.

The Constant Voltage is set at 2.4 volts per cell which means that the battery voltage will rise to 43.2 volts (18 cells) then remain at that value until the current has reduced to 4.5% of the battery capacity. When that current is reached it is held there and the voltage again rises until the battery is fully charged at which point the charger shuts down.

By making use of these features and charging the battery during any meal and tea breaks as well as during slack time a fork lift can operate at increased efficiency with no battery changing.

Financial returns will vary from site to site but some extraordinarily high claims are being made. Some are claiming up to $10,000 per charger per year in overall savings by eliminating battery changing, eliminating a battery room, eliminating battery handling equipment, eliminating unproductive labour, and eliminating battery handling accidents.

There are some sites where Rapid Charging is not practical but many sites are suitable and have much to gain by making the change. You will not be pioneering.

I N F I N I T Y

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STANBURY NEW GENERATION SMART CHARGERS

MODERN

The new NG, N3G range of chargers have been developed using modern technology to further improve the delivery of power to your forklift battery.

SWITCH MODE

Using switch mode technology they are very quiet, very efficient & very light in comparison with older chargers.

CONTROLLED TAPER

They are built to a 3 -1 taper which means that rated output is obtained at a battery voltage of 2.1 volts per cell while charging and tapering to one third of rated output at 2.6 volts per cell. This means that the one charger can be used in either 8 hour or 12 hour charging situations as well as any intermediate charging time. There is no special model for 8 hour charging. The charging time required is simply a function of the battery size. It means that a particular charger will charge one size of battery in 8 hours and a battery 50% larger in 12 hours. From this it follows that intermediate battery sizes may be charged with a corresponding range of charging times.

POWER CONSUMPTION

Mains input current is approximately 30% lower than that drawn by conventional chargers.

CHARGE TERMINATION

The state of the charge is determined by what is known as the DV/DT method. This means that the charge is terminated when the battery voltage stops rising. The effect of this is that the battery will be correctly charged no matter what its condition.

CHARGING DATA

Previously unavailable charging data is displayed on the charger during and at the end of every charge cycle. This makes problem solving much easier, be the problem in the charger, battery, the truck or the operating environment.

AUTOMATIC EQUALIZE

A 2 hour equalise charge is automatic after the charger has been continuously connected to the battery for 26 hours. In 7 day a week applications manual equalising is necessary.

MODULAR

Construction is based on modular concept. Should a module fail an exchange module can be fitted in a few minutes. Exchange modules are readily available so that down time is greatly reduced. Three basic power module sizes are used in building up chargers. By selecting appropriate module combinations chargers of any size are possible.

CONSIDER THESE POINTS:

LIGHT -About 25% the weight of conventional chargers.

EFFICIENT-Well over 90% efficient compared to 55-67%for conventional designs. Wehave been saving our customersmoney since 1997

ECONOMICAL-Draws up to 30% less current from your mains supply than old designs

POWER FACTOR-Near unity, old designs less then 0.7

CONTROLLED OUTPUT -We set the output and itremains the same regardless of local mains variations.

DVDT CONTROL- No smart charger can be without it

LCD DISPLAY- This gives comprehensive charge information, current, voltage, time on charge,ampere hours, and much more.

LOWER BATTERYTEMPERATURE RISE - Output is near pure DC so the battery heats up less.and has lower water consumption during charging

PROVEN RELIABLEOPERATION- In operation since 1993 the track record is outstanding

SUPPORT- Full manufacturers support - proven, reliable, and consistent, Australia wide.

QUALITY- Built for Australia and Australian conditions which are amongst the toughest in the world. Convection cooling means no moving parts and more reliability.

Stanbury only manufactures Battery Chargers, their total commitment is to providing the best product at the best price for all electric fork operations.

DEMAND efficient, modern, lightweight, Stanbury Chargers.