UPS batteries

Rack UPS:

Rack UPS is a power supply equipment mainly used for centralized power supply in security system integration, which is installed on a standard rack and is structured like a server. It is an inevitable product for standardized management and centralized management of security systems.

Diagram of Rack UPS:

Installation method:

The rack UPS can be fixed in a standard network cabinet through rails. Compared to traditional vertical (tower) UPS, the rack UPS can be installed in a standard cabinet, saving floor space, easy to install, use, maintain and can also use a shorter power connection cable. It increases the availability of the entire system by reducing the point of failure between critical equipment and the load. Just like our Power Lead2 Rack UPS. With 19 inch standard rack design, self-adjusting output frequency, smart battery management system and network management, PL2 RM series is a perfect choice for computers, IT equipments and other sensitive devices.

Advantages of Rack UPS:

The installation is simple, the expansion is convenient and the investment is saved. The rack-mounted UPS power supply enables the power supply system to be on demand, enabling the capacity to grow dynamically with the development of the business which not only meets the expansion requirements of the later business but also reduces the initial acquisition cost of the user. Attractive features are Parallel redundancy, stable operation and high reliability. No need for an electrician or facilities involvement. Ability to do your own maintenance/user serviceable.

Disadvantages of Rack UPS:

Not ideal for mission critical equipment that requires high availability. Takes up valuable rack space and limited battery life (2-3years). Not as efficient as 3 phase UPS. Batteries might not be hot swappable.

  Even though a UPS unit is effectively just a sophisticated battery, there are tons of little features that can greatly enhance your UPS experience.

Definition of High Temperature Battery:
High temperature Lead acid battery refers to batteries which are capable to charge continuously at 35°C or above and the operating temperature range is -40°C to +80°C whereas usually the ordinary lead acid battery’s operating temperature range -20°C to +45°C.

High Temperature Battery Design

High Temperature batteries have been designed for countries where temperature is extreme to tolerate (like Middle East , Asian, African countries) and perform simultaneously.  These batteries are suitable for Telecommunication, Uninterruptible power supply, Switchgear, Solar/ Photovoltaic, Data Center, Broadband or many more where temperature is the main reason of damaging batteries frequently.
The High Temperature Battery adopts
-Corrosion resistant battery plate to reduce grid corrosion and charge current density,
-nano carbon to improve durability,
-special positive additive α-PbO₂ to improve the  grid strength,
-optimized valve to tolerate the internal pressure in high temperature,
-reinforced special high temperature resistant ABS container and cover to ensure stable performance.

Advantages:
•12 years design life @35°C (95°F);
•12 months storage life @20°C~25°C;
•Double floating life more than traditional VRLA battery @35°C;
•Greatly reduce operational cost (more than 60% less cooling consumption);
•Up to 100% air conditioner maintenance saving;
•Up to 100% condensing agent saving;
•Up to 25% electricity power saving;

Market Demand:
There is always a great market demand of high temperature batteries because in hot summer many applications temperature raises up to 75°C. High temperatures cannot always be avoided. As a guideline, each 10°C rise in temperature cuts the life of a sealed lead acid battery in half. Therefore, high temperature batteries are designed and developed to sustain up to 80°C.

What is your opinion about High Temperature VRLA batteries? Do you also agree with us about the technical benefits these batteries? Please let us know your views or queries through message.

One of the biggest threats to batteries is the temperature. It is vital to keep your batteries in conditions that do not affect their chemistry. Unfortunately, getting the right temperature is never easy. Whereas high temperatures are bad, cold temperatures are not good either. Charging a battery above freezing temperature is one of the biggest challenges for European, American and some other countries.
For low temperature operation, EverExceed offers full range of Nickel cadmium batteries and Lithium iron phosphate batteries for variety types of applications.

Nickel Cadmium Batteries
EverExceed Nickel Cadmium Batteries have been designed in such way to cover wide operating temperature range -40°C to +60°C; specially to sustain in low temperature. These batteries also can tolerate extreme of -50°C to +70°C (-58°F to +158°F) for short periods. Our NiCd batteries have injection moulded plastic grids; both separate plate and insulate plate edges. For extremely low temperatures a special high density electrolyte is used. The block battery fitted with a specially designed flame arresting flip top vent and does not produce corrosive vapours.

Benefits:

·         20+years operating life;
·         Minimal maintenance
·         No downtime
·         No replacement cost

Lithium Iron Phosphate Batteries
EverExceed Lithium Iron Phosphate Batteries can be safely discharged over a wide range of temperatures, typically from –20°C to 60°C, which makes them practical for use in all-weather conditions faced by many potentially low temperature applications. For example, at 0°C a lead-acid battery capacity is reduced by up to 20%, while a lithium iron phosphate battery suffers only a 10% loss at the same temperature. When it comes to recharging lithium-ion batteries, however, there’s one hard and fast rule: to prevent irreversible damage to the battery, don’t charge them when the temperature falls below freezing (0°C or 32°F) without reducing the charge current. Charging below 0°C at an inappropriate charge rate causes the battery to become less mechanically stable.

Benefits:

·         Higher cycle life at 100%DOD
·         Lighter weight to move flexibly
·         Mechanically stable
·         No sudden death

What is Solar battery?

Solar batteries are used to store solar energy (solar electricity) and discharge power as and when needed. Rechargeable solar batteries are used in off-grid PV systems to store excess electricity. Now-a-days solar batteries have been specially designed and optimized for PV system. Each battery has different temperature, mounting, and ventilation requirements.

Types of Solar battery

Batteries used in home energy storage typically are made with one of three chemical compositions: lead acid, lithium ion, and saltwater. In most cases, lithium ion batteries are the best option for a solar panel system, though other battery types can be more affordable.

Which one is the best Solar battery?

For solar home energy system, Lead acid battery is still competitive in market due to its less expensive price than Lithium battery. But Lithium ion batteries are the ideal match for solar energy storage because of its longer life span and higher DOD.

What is Solar Lithium (LiFePO₄) battery?

Solar lithium (LiFePO₄) battery adopts lithium iron phosphate technology which is also optimized specially for solar home system. It is an ideal choice for home energy storage system and SME (small medium enterprise). EverExceed designs two types of Solar Lithium batteries- Rack mounted Solar Lithium battery and Wall mounted Solar Lithium battery to meet the demand of both category installation criteria.

Technical Features:

•Higher life cycle and longer service life;
•Excellent deep cycle ability;
•Rack mounted battery to install in standard rack.
•Wall mounted battery to save the installation space
•Intelligent monitoring system to check technical parameters;
•Lightweight and high energy density standby power;
•High safety, no risk of explosion fire;
•Maintenance free throughout life time;
•Compatible with most of the available hybrid inverters.

Low voltage:

Voltage (V) is the measure of the potential difference between two points in an electrical field. Low enough voltage to be considered safe for indoor domestic use and typically 120 volts or less.

Low voltage UPS:

Uninterruptible power supplies having low voltage are called low voltage UPS. EverExcced offers high efficiency and high quality independent online low voltage UPS which designed in the form of modular UPS, rack UPS and tower UPS. Both single phase and three phase UPS are also available for those countries which use low voltage as well.

In most countries the mains supply is between 220 and 240 volts (50 or 60 Hz); countries that operate on 100-127 volts are greatly outnumbered. There are approximately 40 countries that use 60 Hz while the rest typically run on 50 Hz current. Single-phase power is primarily for residential use (such as homeowners and what you would find in a hotel) while 3-phase electric power provides more stable, heavy-duty power for most industrial applications like manufacturing plants, commercial facilities, data centers, telecom towers, hospitals, food processing, and utility power plants.

Why isn’t there a standard voltage around the world?

Europe and most other countries in the world use a voltage which is twice that of the US. It is between 220 and 240 volts, whereas in Japan and in most of the Americas the voltage is between 100 and 127 volts.

Originally Europe was 120 V too, just like Japan and the US today, but it was deemed necessary to increase voltage to get more power with fewer losses and less voltage drop from the same copper wire diameter. At the time the US also wanted to change but because of the cost involved to replace all electric appliances, they decided not to. At the time (50s-60s) the average US household already had a fridge, a washing-machine, etc., but not in Europe.

USA, Mexico, Colombia, Venezuela, American Samoa, Brazil, Bahamas, Bermuda, Dominican republic, Japan, Ecuador, Honduras, Panama and more other countries are now using low voltage UPS.

In countries having higher voltages, energy losses are lower, but the risk of sustaining injuries is much higher. 

Take EverExceed Solar Powered Security Camera which is a great choice for those who want to keep their home secure without raising their electricity bill. It is a self sufficient system that comes with a rechargeable Lithium Iron Phosphate battery and offers a high grade monocrystalline solar panel to get non-stop power. When the sunlight is not available, the wireless solar powered security cameras can still get power from the rechargeable batteries which stores excess electrical power generated by the solar panel.

Working principal:

One of the top benefits is that you can install a solar security camera anywhere you wish. In rainy or foggy days, the WiFi solar security cameras can still work as normal – sufficient sunlight is absolutely the best! Since the EverExceed Solar Security Camera comes with the weatherproof design, you don't need to worry about them in rainy days.

  Power outages are one of telecom companies’ worst nightmares, as they lead to loss of revenue, customers, image, and so on. In response, internet and telephone providers have expressed a keen interest in having a power backup system. There is a wide choice for telecom companies regarding which backup system they want such as diesel and natural gas generators, fuel cells and batteries.

Types of batteries used for telecommunication:

Batteries convert chemical energy directly into electrical energy. Telecom power systems are responsible for every-day internet, high-speed data, telephone, and other communication services. As global demand for these services continues to increase, the need for reliable wireless telecom battery backup equipment rises. The batteries used in telecom sector are mainly two types:

• Lead acid battery
• Li-ion battery

The majority of batteries used in the telecom industry are a Lead-Acid type. The lead-acid battery segment contributed the majority of shares toward the battery market in telecommunication industry. Lead-Acid batteries are an inexpensive design compared to newer technologies such as Lithium-Ion; however, Lead-Acid batteries have a lower energy density, meaning that larger and heavier batteries are required to produce the same power equivalence of a smaller, Lithium-Ion battery.

Valve-regulated (commonly referred to as sealed) lead-acid batteries are normally used as the backup power source for telecom power systems, due to their low operating costs. The battery string is comprised of 24 series-connected battery cells to make 48V. The battery plants are normally designed to support the telecom load to a final battery voltage of 1.75~1.8V/cell.

In the other hand, Li-ion batteries have definite technical advantages in terms of power to weight to volume ratio, absence of pollutants like acid and lead. Lithium-ion or Li-ion batteries have more than double life than of traditional lead-acid batteries and thus help to cut cost. Lithium-ion (Li-ion) — Telecom systems need small power sources to back-up the supply to mobile-phone relay stations, cable TV terminals and other facilities. Because these power systems need to be small and lightweight, they need to use batteries with an energy density higher than that of VRLA batteries.

Important criteria while choosing battery backup:

Among several kinds of lead acid batteries, some models are usually designed or chosen specially for Telecom market to ensure maximum performance according to the load capacity. Here is some important criteria while choosing battery:

• Special design comply with telecom 19''/ 23'' cabinet for space limitation;
• Deep cycle ability and high cycle life;
• Wide operating temperature range as well as high  temperature sustainability;
• Maintenance free battery for trouble free operation in remote site;
• Negligible gassing ;
• Spill proof and leak proof ;

• Scalable;
• Operation in any suitable position;
• Compatible with off-grid energy storage system.

In compatible with the above criteria EverExceed offers an extensive portfolio of Modular Range VRLA battery, Modular Max range VRLA, Front access FT range VRLA, Front access FT Gel range VRLA, Unilyte range VRLA, High rate range VRLA, Standard range VRLA, Tubular OPzV range VRLA, Flooded Tubular OPzS and Lithium Iron batteries as well as rectifier system to serve the telecommunications industry. Our batteries are featured with excellent deep cycle ability, wide operating temperature range, long life, compact footprint, high energy density and ease of installation. The design of the batteries and rectifier system are ideally suitable for a wide range of wireless telecom applications, including indoor and outdoor BTS. 

a)What are the important and necessary kits that a solar camera consists of?
1.Solar Panel
2.Built in battery
3.A camera
4.SD card
5.Antenna

Solar panel: The best quality solar panel which maximizes the efficiency and performs in low light is ideal for a security camera. While choosing camera it’s also important to look into the types of solar panel. Choosing monocrystalline solar panel will be wiser than polycrystalline solar panel.

Battery: The life span of solar camera depends on the life of the battery. Its battery must have long cycle life, fast and deep discharging capability. It must have a high speed charging and extremely low self discharge. It must be resistant to vibration as well as a wide operating temperature range. Lithium iron Phosphate (LiFePO4) battery is the best choice for longer service life.
Camera: The camera is the most vital part itself consisting with 2.0 megapixels 1080P HD quality, two way intercom, induction lump, IR technology, motion sensor and weather protective body.
SD card storage: The solar powered security cameras with SD card (slot) can record motion detection events onboard even when there is no WiFi / Internet. So SD card slot is important to include in choosing solar camera. SD cards that supports up to 64GB is considerable to store data while network is absent.
Antenna: The solar power camera is wireless and runs by internet whether it is wifi or 4G network. The antenna simply activates the camera by connecting with wireless network.

b)What are the special features that make a solar camera complete surveillance system?
1.Weather protection
2.Built in charge controller
3.Intercom
4.HD video Quality
5.Night vision
6.Remote control
7.Motion sensor

Weather protection: Choose the solar security camera which offer good IP rating (EverExceed offers IP67 ) and can withstand heavy rainfall, hailstorms, gusty winds, snowfall, sleet, fog, haze, mist, smog and pollen.

Built-in charge controller: Pick the solar security camera that has a built-in microcontroller for digital accuracy. It must be able to detect day and night using the PV array. It must operate fully automatically. It must have LVD (low voltage disconnect) override protection.
Intercom: Select the ones which have two way intercom. This feature will help you to talk both way to the visitors on your doorstep, while you are busy inside your house. You can also warn from other side if any unexpected thing happens.
High definition video quality: Remember the higher the camera resolution, the sharper the images. 1080P and higher resolution are ideal for the best and clearest view. HD 1080P also ensures clear view even in night to identify the subject.
Night vision: This is the most important thing to consider. To get the best night view, select a solar security camera with an infrared technology (IR). IR sends bright light through wavelengths. The number of infrared LEDs used in your camera will determine how far it can see. Buy the one with a built-in IR cut-switch that automatically enables and disables the IR depending on the lighting conditions.
Mobile remote control: Pick the solar security camera that is able to live stream feed directly to your smartphone or ipad. If you go away for holidays, this feature will keep you aware and carefree. Make sure the camera is compatible with your specific smartphone or ipad.
Motion sensor: Last but not the least is motion sensor. It helps to send you instant alert message to know what is happening outside. The most important advantage is that it saves energy of solar camera. During night if there is no movement the camera will go to sleep mode automatically and if there is any movement it wakes up automatically and starts recording. Microwave motion sensor provides you the most accurate detection and it is ideal for wide open space.

Deep cycle battery:

A deep-cycle battery is a battery designed to be regularly deeply discharged using most of its capacity.

Deep cycle batteries are designed to be discharged down as much as 80% time after time and have much thicker plates. The major difference between a true deep cycle battery and others is that the plates are SOLID Lead plates - not sponge. This gives less surface area, thus less "instant" power like starting batteries need. Although these can be cycled down to 20% charge, the best lifespan vs cost method is to keep the average cycle at about 50% discharge.

The level of discharge is the “deep cycle” and stands in contrast to other types of batteries that provide only short bursts of energy before they need to be recharged. To be specific, a starter battery discharges only a tiny percentage -- usually 2 to 5% -- each time it is used.

Types of deep cycle battery:

Even among deep cycle batteries with similar functionality, there are different types. The two most common types of deep cycle batteries are flooded deep cycle batteries and sealed or “maintenance-free” deep cycle batteries. Further, flooded deep-cycle batteries can be divided into subcategories of Tubular-plated or flat plated. The difference generally affects the cycle life and performance of the cell.

Flooded deep cycle batteries require regular monitoring. When the electrolyte levels are low in this type of battery, the user must refill the battery appropriately to maintain performance. EverExceed Deep Cycle AGM battery and Deep cycle GEL battery are perfectly suited for float and cyclic application under extreme environment. EverExceed Tubular-plated OPzS range battery are popular for long durability, high reliability and low maintenance.

“Maintenance-free” batteries, which are also called “Sealed” or “Valve Regulated Lead Acid” batteries are sealed and do not require watering, although regular inspection is still recommended.

Although still much more expensive than traditional lead-acid, a wide range of rechargeable battery technologies such as lithium-ion are increasingly attractive for many users. Such as EverExceed Deep Cycle LDP Series Lithium Iron Phosphate (LiFePO4) Battery are developed to deliver high efficiency energy output compared to equivalent lead acid batteries.

When to use a deep cycle battery?

Deep cycle batteries provide sustained energy, making them ideal for certain applications that require more than a quick start. Some of the most common uses for deep cycle batteries include:

• Marine applications
• Recreational vehicles
• Materials handling, including forklifts
• Golf carts
• Off-grid renewable energy

EverExceed has excellent deep cycle life and maintenance free AGM, Gel Lead Acid batteries and environment friendly Lithium batteries designed for frequent cyclic charge and discharge applications under extreme environments. These batteries perfectly fulfill the requirement for many different applications including telecommunications, medical equipment, industrial and utility applications where frequent deep cycles are required and minimum maintenance is desirable.