How long does shipping usually take?

We understand the importance of receiving your telecommunications equipment in a timely manner. Once you place an order with Communication Power Solutions, we strive to process it as quickly as possible. Our shipping time typically ranges from 3 to 7 business days, depending on your location. Please note that some remote areas may experience longer delivery times. Rest assured, we work with trusted shipping partners to ensure the safe and prompt delivery of your order.

Is my personal information secure?

At Communication Power Solutions, Inc. we prioritize the security and privacy of our customers. We implement industry-standard security measures to protect your personal information from unauthorized access or disclosure. When you make a purchase on our website, your information is encrypted using SSL technology, ensuring it remains confidential and secure. We do not share or sell your personal information to third parties. Your trust and privacy are of utmost importance to us.

How do I track my order?

Tracking your order is easy with Communication Power Solutions, Inc. Once your order is shipped, we will provide you with a tracking number via email or text message. You can use this tracking number to monitor the status of your package. Simply visit our website and enter the tracking number in the designated tracking tool. This will give you real-time updates on the whereabouts of your order, so you can stay informed and anticipate its arrival.

What payment methods do you accept?

Rest assured, your payment information is encrypted and securely processed. We utilize industry-leading security measures to protect your financial data, so you can shop with confidence knowing your sensitive information is safe with Communication Power Solutions. Inc,

How are battery capacities properly determined?

The most common battery rating is the AMP-HOUR rating. This is a unit of measurement for battery capacity, obtained by multiplying a current flow in amperes by the time in hours of discharge until a specific end of discharge voltage is reached. (Example: A battery which delivers 5 amperes for 20 hours to a final voltage of 1.75 volts per cell delivers 5 amperes times 20 hours, or 100 ampere-hours.) The amp-hour rating varies with the discharge period and final voltage. The longer the discharge period, the higher the rating. Batteries used for telecommunications are generally rated over an 8-hour period, those used for solar electric systems are rated over 100 hours. For this reason Amp-Hour Ratings and discharge period are both considered when evaluating a battery’s capacity for selection purposes. A good way to understand this is by thinking of a runner. A runner may be able to run at a slow speed for a long period of time, however if they were to run faster, their distance run will decrease. The amp-hour rating also varies with temperature, most ratings are at 25°C/78°F. Lower temperatures decrease the rating while higher temperatures increase the ratings. Some batteries are rated on a constant power basis rather than amp-hour basis because the application is with electronic equipment that draws a constant power even as the voltage decreases during discharge (current increases during discharge to keep the power level constant). These batteries are rated in watt-hours, again to a specific end of discharge voltage.

What are some of the basic consideration that apply to installing new batteries

Keep a copy of the applicable battery manual and layout drawings (if any) near the battery installation at all times. Only allow properly trained personnel to perform battery installations and servicing. Batteries contain sulfuric acid which is harmful to skin and eyes. In the event of contact, flush immediately with water and obtain medical attention.
Batteries contain lead and lead compounds which are toxic materials, wash thoroughly after handling.
Use protective equipment, such as acid resistant rubber gloves, protective aprons, safety shoes, safety glasses and insulating tools when working with or around battery systems. Batteries are capable of high voltage and current which can cause injury to personnel. Do not lay any metallic objects on the battery as it may cause a short circuit. Do not wear metallic objects, such as jewelry, when working around batteries.
·Neutralize static buildup just before working on battery by contacting the nearest effectively grounded surface. Use caution when lifting batteries. Use proper lifting devices. DO NOT lift cells by the terminal posts. DO NOT smoke, use an open flame or create a spark in the vicinity of the battery. DO NOT install cells in sealed (airtight) enclosures. Each cell is fitted with a vent through which hydrogen gas may escape under all operating conditions. Provide adequate ventilation in accordance with local, state or federal building and fire codes.

What should be considered when Connecting Batteries in Parallel?

The capacity of a battery installation can be increased through parallel connection. In theory, an unlimited number of strings may be connected in parallel, however, a maximum of 4 strings in parallel is recommended.
NOTE: Contact the Battery manufacturer for specific recommendations if more than 4 strings must be connected in parallel.
The following should be considered when sizing a battery system with multiple parallel strings: Batteries must be of equal age, voltage, and capacity. Parallel cables must have equal resistance (usually the same length with looping to accommodate the extra lengths for some strings) and should be sized to maintain a safe temperature increase in case one or more strings fail causing the remaining strings to support a higher load than normal.
During discharge, a weak battery string may cause the other strings to support more of the load resulting in reduced back-up time. In addition, the weak string may discharge below the specified end-voltage (over-discharged). When connected in parallel, the current from a charger will tend to divide almost equally between batteries in good condition. However, during charge, a weak battery string may draw most of the charge current and prevent other strings from being fully charged.
Check that the system power plant (rectifier/charger) will be capable of maintaining the load and recharging the batteries at the same time without overloading.

What are the recommended inspection and record keeping guidelines for my battery system?

To prevent premature battery failure, the following inspection and maintenance schedule based on IEEE Std 1188 is recommended.
NOTE: Maintenance records will be required for warranty claims. Some maintenance procedures may require special tools or skills. Voltage readings may require special probes or techniques, consult the battery manufacturer’s literature for guidance.
Initial Inspection – After the battery has been on float for one week, measure the following data and record on the installation report:
· Ambient temperature in the battery room or area should be measured. If the temperature is not 77°F (25ºC) or less, environmental controls should be used to control the temperature. If temperature controls are impractical, the float voltage must be compensated for temperature (Refer to manufacturer’s requirements).
· Charger output current and voltage
· Overall float voltage measured at battery terminals.
· Charger imposed AC ripple current and or voltage.
· Condition of ventilation and monitoring equipment.
· Condition of battery (Appearance, Cleanliness, Accessibility).
· Cell number, Float voltage.
· Internal Ohmic Value.
· Negative terminal temperature.
· Intercell Connector Resistance.
· Visually inspect each battery for signs of wear to the case, cover and terminals, electrolyte leakage, and corrosion at the terminals, connections or racks.

Typical caused of battery failure

There are four common causes for battery failure: grid corrosion, positive plate growth, discharge cycle, and environmental temperature. The below sections talk about each cause of failure in more detail.

Grid Corrosion-The loss of contact between plates and some of its paste material. This is a naturally occurring result of batteries on serve but can also happen pre-maturely. The lead plates found inside the batteries are consumable materials which means that they will corrode over time. When grid corrosion occurs, this film of corrosion insulates part of the plates from the outer paste material, eventually reducing the overall capacity of the battery.

Positive Plate Growth – Over time, material deposits on the positive plates causing them to physically expand and grow larger.  In a VRLA battery, this collection of material can actually bulge the battery enough to crack and break the case over time. It may also lift near the positive battery terminal causing seal leakage at the post.  As the positive plate grows, more active material or paste loses contact with the plate because those cast-in “waffle pockets” also stretch out.

Discharge Cycles – As the battery experiences continuous or cyclical discharge cycles over time, the active paste changes its molecular character.  Basically, the paste turns to mush, further reducing its contact with the plates and the useful life of the battery is essentially used up.  Batteries are engineered for a specific cycle life ranging from a 200 to 300, all the way to several thousand and the number varies by the Depth of Discharge (DOD).  If a product is capable of 1200 cycles at an 80% DOD, it is typical they would sustain several hundred more at a 50% DOD.

Environmental Temperature – All of these aging conditions will accelerate along predictable lines as the environmental temperature of the battery increases.  Lead-acid batteries thrive at 77 degrees Fahrenheit (25 Celsius). As the temperature rises above that, aging increases linearly.  A 15 degree Fahrenheit increase over 77 F, which is 92 F, ages a battery by half-life.

Accordingly, a battery designed to last twenty years will last only ten years in a 92F environment.  It’s important to note that each 15-degree (F) increase is a half-life so a 107F environment reduces battery life to ¼ and so on.  Many lead-acid VRLA Batteries are designed for a ten-year life.  When used in outdoor cabinets in hot climates such as Phoenix, AZ, they generally last 12 to 18 months on average.  A glance at the average operating temperature in one of the battery cells will give a good idea of temperature at the site.  For de-rating purposes, approximate or data log the average temperature over the battery life.  A few hot weeks per year won’t seriously accelerate a battery’s aging process but it certainly plays a role in longevity.

 Also, cold temperatures have an equally beneficial effect with one trade off.  Cool temperatures reduce the internal discharge of a battery reducing float current consumption This means that the battery requires less power to fully charge. This is because the lower float current consumption has the added effect of lowering any accumulation of heat generated by trying to keep the battery at a full state of charge when operating at a higher temperature.