Posted on February 4, 2020 by Jeff -
a. Constant Voltage Chargers
The most common example of a constant voltage charger is the DC power supply of a simple car battery charger, which includes a step-down transformer from the mains and a rectifier to provide DC voltage. Constant voltage chargers are frequently utilized in the lead-acid cells found in cars and backup power systems. While generally more complex due to additional protective circuitry for both user and battery safety, lithium-ion cells also regularly incorporate constant voltage systems. Known as a voltage-limiting device, the Li-ion charger is comparable to the lead-acid system. To distinguish the Li-ion charger from its lead-acid counterpart, simply note the increased voltage per cell, tighter voltage tolerance, and the lack of trickle or float charge when completely charged. Manufacturers of Li-ion cells maintain stringent settings on voltage cut-off, as Li-ion is unable to accept overcharge, unlike the relative flexibility of lead-acid systems.
b. Constant Current
The voltage of constant current chargers shuts down when the voltage level reaches full charge and resumes automatically when additional voltage is required to maintain constant current flow. Nickel-cadmium and nickel-metal hydride cells or batteries frequently utilize this design.
c. Trickle Charge
To account for the self-discharge of the battery, a trickle charge can provide a continuous charge or long-term, constant-current charge for stand-by use. Based on the frequency of discharge, such charge rates may vary.
Those batteries that are susceptible to damage caused by overcharging, such as NiMH and Lithium batteries, are not recommended for trickle charge. Chargers may be designed to switch to trickle charging when the battery is completely charged.
d. Float Charge
A permanent connection exists in parallel between the battery and the load across the DC charging source. These are maintained at a constant voltage just below the battery’s upper voltage limit.
Float charge is mainly utilized with lead-acid batteries for emergency backup power systems.
Posted on February 4, 2020 by Jeff -
Are primary cells with high energy-to-weight ratios. Available in small sizes known as “button cells.” These are similar to alkaline with good pulse discharge characteristics. Silver Oxide cells are designed for high performance for small electronic applications.
Posted on February 4, 2020 by Jeff -
High energy density, less prone to memory effect, easy storage and transportation, environmentally friendly, and great for use in high-current applications. Short cycle life, limited discharge current, high internal resistance, more complex charge needed, high self-discharge, and high maintenance. Performance degrades when stored in elevated temperatures.
Applications include communication devices, emergency lighting, and consumer products.
Posted on February 4, 2020 by Jeff -
Excellent cycle life, long shelf-life, fast simple charge, low internal resistance, high discharge rate, worthy load, desirable low-temperature performance, forgiving if abused, and easy storage and transportation. Low energy density, memory effect, high self-discharge, and environmentally unfriendly. Applications include two-way radios, portable medical equipment, power tools, and consumer products.
Posted on February 4, 2020 by Jeff -
Used for low to moderate power specifications for consumer and industrial applications with long-life requirements and has no mercury content. These 3V batteries are easy to install and provide a long operating life.
Posted on February 4, 2020 by Jeff -
ZEUS Battery Products’ LiFePO4 cells and batteries optimized for either high-energy density or high power
ZEUS Battery Products’ lithium iron phosphate batteries are rechargeable and designed for electric vehicles or energy storage applications. Their key feature is lithium iron phosphate chemistry for both exceptional cycle and shelf life. Their design is optimized for either high-energy density or high power.
Battery selection for user applications can vary depending on important factors such as cost, weight, dimensions/size, temperature sensitivity, maintenance, and lifetime. Typically, there is no optimal solution to address all of these factors as a whole, but ZEUS LiFePO4 does. These products provide a better cost of ownership. They function better in extreme environments while having a longer useable life, easing the cost of maintenance. Despite their initially higher cost, they are a power-horse in the long run.
Features
- High power
- Fast charging
- Longer cycle life than lithium Ion and lithium polymer
- Flat discharge curve for maximum power
- Superior thermal and chemical stability
- Wide temperature range
- Excellent replacement SLA/AGM batteries
- High charge/discharge efficiency
- Enhanced safety
- Low operational/ownership cost
- More than 2000 discharge/charge cycles
- Battery management system with balancing for enhanced safety and longevity
- <50% weight of a comparable lead-acid battery
- Fuel gauge (Smart BMS) option available to monitor the state of charge, state of health, voltage, current, temperature, cycle life, and end of service
Applications
- Solar energy storage
- Industrial energy storage
- Residential energy storage
- Motive power [electric vehicles (EV)]
- Forklifts
- Semi-traction (sweepers and scrubbers)
- Buses, trams, and more
- AGV (automated guided vehicles)
- Personal mobility (wheelchair, electric bikes, and scooters)
- Starter battery for motorcycles
Posted on February 4, 2020 by Jeff -
The latest trend in lithium batteries is used in consumer electronic products and IT gadgets. It is flexible in footprint and capacity. Customers can participate to design the unique battery most-fitting its application. Furthermore, it is lightweight and low profile, perfect for the trendy, thin design of laptop or tablet PCs. Optional ZEUS-unique features like fast-charge capability or ultralong life cycle are also available.
Posted on February 4, 2020 by Jeff -
LiSOCl2 cells come in a wide range of sizes from ½ AA to D cells. This chemistry offers high energy density (long life) and voltage in a very small format. This disposable (primary) cell is designed for commercial applications for meters, military equipment, and some medical equipment. This chemistry is ideal for very low continuous currents and/or moderate pulse currents.
Two types of lithium thionyl chloride cells are available:
- Bobbin Construction: Designed for applications with long operating cycles and low-pulse requirements.
- Examples include gas meters.
- Spiral-Wound Construction: Designed for applications with long operating cycles and high-pulse requirements.
- Examples include RF transmitters.
Posted on February 4, 2020 by Jeff -
Industrial-standard 18650 cell form factor which is widely used in ordinary laptop PC or cordless power tool applications. ZEUS offers industry-leading specification and performance with optimal ZEUS-unique features, such as fast-charge capacity and ultralong cycle life. It is available in designs optimized for either high-energy density or high-power density.
Posted on February 4, 2020 by Jeff -
ZEUS Deep Cycle Batteries are the optimal choice for Design of High Capacity and Maximum Life – Their superior performance, advanced AGM Technology, and wide variety of applications make them a reliable choice for many uses.
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