TECHNICAL INFORMATION

Type 8D batteries are available with either cranking or deep cycle construction. The deep cycle versions are 12-volt batteries rated at 200 amp hours or so. Since they are most commonly used to start truck engines, you should make sure you purchase the deep cycle version.

SEALED LEAD ACID BATTERIES

CAUTION: if using gelled batteries, the battery charger must be set to the appropriate settings or battery damage will occur.

Another type of deep cycle battery construction is the sealed "valve regulated" lead acid battery. They are a rechargeable battery which recombines suppressed gases, thus eliminating the need to add water. Since they are tightly sealed, these batteries will not leak and can be installed in certain applications where ’liquid type’ batteries could not be installed.

While there are many manufacturers of quality non-sealed batteries, there are only a few manufacturers of suitable sealed batteries. Don’t confuse sealed batteries with “maintenance free” batteries - the later is typically a standard liquid electrolyte type battery without caps for adding water - when the electrolyte gets low you replace the battery.

The advantages of true “deep cycle” sealed batteries are no maintenance (does not require acid checks or periodic watering), long life (800 cycles claimed) and low self-discharge. The disadvantage is high initial cost and because water cannot be added, they are less tolerant of overcharging.

Two methods are used to seal batteries by a process of immobilizing the electrolyte, which in turn eliminates free-flowing acid. Both these methods can be used in inverter applications.

Gel Cell: Silica gel is added to the electrolyte, causing it to 'set' in gelatin form.

Absorbed Glass Mat (AGM): Highly absorbent glass mat separators are used between each plate to retain the liquid electrolyte.

Even with all the advantages of sealed batteries, there is still a place for the standard flooded deep cycle battery. Sealed batteries will cost 2 to 2.5 times as much as “liquid” or flooded batteries. In many installations, where the batteries are set in an area where you don't have to worry about fumes or leakage, a standard or industrial deep cycle is a better economic choice.

NICAD AND NICKEL IRON (NIFE) BATTERY

Trace™ inverters and battery chargers are optimized for use with lead acid batteries that have a nominal voltage of 2.0 volts per cell. NiCad/NiFe batteries (also called alkaline batteries) have a nominal cell voltage of 1.2 volts per cell. The nominal voltage of a NiCad/NiFe battery bank can be made the same as a lead acid bank by juggling the number of cells (10 cells for 12 volts, 20 cells for 24 volts and 40 cells for 48 volt systems). However, the NiCad/NiFe battery bank must be charged to a higher voltage to fully recharge and will drop to a lower voltage during discharging compared to a similarly sized lead acid type battery. This makes the job for the inverter/charger much more difficult.

The easiest way to use NiCad/NiFe batteries with a 24 volt inverter is to use nineteen NiCad/NiFe cells in the battery bank instead of the usual twenty. This will reduce the battery bank charging voltage requirements to about the same level as a lead-acid bank; so more standard charger settings can be used. The problem with this approach is that the battery voltage will drop as low as 18 volts to fully discharge the battery.

A second option on 12-, 24- and 48-volt systems is to adjust the SET BULK VOLTS DC to its maximum setting. This will provide a complete charge although it may require a longer charging period to completely recharge the battery compared to using a higher charge voltage (or lesser number of cells) were used. The ABSORPTION TIME setting may be set shorter than with lead acid batteries since NiCad/NiFe batteries do not require an absorption stage. If the battery storage requirements are large, industrial grade 2 volt batteries are often more suitable.

Note: In alternative energy applications (solar, wind, hydro) all DC charge controllers must be set to a level below the inverter HIGH BATTERY CUT OUT setting or the inverter may shut off unexpectedly.

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2001 Xantrex Technology, Inc.

Telephone: 360/435-8826

SW Series Inverter/Charger

5916 - 195th Street N. E.

Fax: 360/435-2229

Part No. 2031-5

Arlington, WA 98223

www.traceengineering.com

Rev. C: February 2001

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Xantrex Technology SW Series owner manual 100, Sealed Lead Acid Batteries, Nicad and Nickel Iron Nife Battery
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SW Series specifications

Xantrex Technology has established itself as a leader in innovative power solutions, and its SW Series inverters epitomizes this commitment to quality and efficiency. Designed for both standalone and grid-tied applications, the SW Series offers versatile power management for a range of residential and commercial needs.

At the heart of the SW Series is its advanced pure sine wave output, ensuring clean and reliable electricity suitable for sensitive electronics. This feature makes it an excellent choice for applications such as solar energy systems, where it provides high-quality power for a variety of devices, from household appliances to complex machinery.

One of the key characteristics of the SW Series is its modular design, which allows for easy installation and scalability. This modularity enables users to expand their power system as their energy needs grow, making it an ideal choice for both small and large installations. The inverters come equipped with a user-friendly interface, providing clear information on system performance, battery status, and more, ensuring that users can effectively monitor and manage their energy consumption.

The SW Series inverters also incorporate cutting-edge technology, such as the patented Power Factor Correction (PFC) feature, which optimizes energy efficiency by reducing harmonic distortion. This translates into less wasted electricity and lower energy costs, making it an environmentally friendly option for users looking to reduce their carbon footprint.

Another notable feature of the SW Series is its ability to operate in extreme conditions. Built with robust components and advanced thermal management systems, these inverters can withstand a wide range of temperatures and environmental challenges, ensuring reliable performance in various settings. This durability makes them suitable for off-grid applications, including remote cabins, RVs, and boats.

Furthermore, the SW Series supports a variety of battery types, including lithium-ion, AGM, and gel batteries, offering flexibility for users to choose the best energy storage solution for their needs. The sophisticated battery management system ensures optimal charging and discharging, prolonging the lifespan of the batteries and enhancing the overall efficiency of the power system.

In summary, Xantrex Technology's SW Series inverters stand out for their pure sine wave output, modular design, energy efficiency features, and robust performance in challenging conditions. With their versatility and advanced technology, they cater to the evolving needs of today’s power consumers, making them a compelling choice in the modern energy landscape.
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