- What is meant by AC Power? AC means Alternating Current; it is the type of electricity provided in standard wall outlets. It flows back and forth; switching directions. Motors and a variety of equipment are designed to run off of AC current.
- What is Alkaline? A primary cell battery that is small, lightweight and durable. Because alkalines are inexpensive and relatively efficient, they are currently the most common battery type.
- What is an Amp Hour? The most common unit used to express battery capacity. Amp hours are a product of current and time.
- What is a Battery? A device that converts chemical energy into electrical energy. Batteries are a source of direct current.
- What is Button Cell? A small, button-like battery that provides power for watches and very small devices.
- What is Battery Capacity? The amount of energy a battery can store. If battery materials are the same, capacity is directly linked to volume.
- What is a Cell? A single unit of a battery.
- What is a Cycle? A complete battery discharge and a full recharge.
- What is the Cycle Life of a Battery? The total number of cycles a battery is capable of producing before it fails.
- What is Current? Current is the flow of electricity from place to place.
- What is DC Power? DC means Direct Current. DC flows in only one direction while AC Power flows in both directions. DC Batteries provide a steady push in a single direction, so battery circuits (as in flashlights) use DC. DC power eliminates the use of an AC inverter. DC powered Point-of-Care Carts enable nurses and caregivers to move however or wherever without skipping a beat; DC power provides true healthcare mobility. Having a DC power system for increased efficency, helps clinicians provide patient care at the bedside longer and without worrying about when or where to charge your computer cart.
- What is a Discharge Curve? The charting of the voltage level of a battery as it drops off during use. Internal resistance causes the drop in voltage.
- What is Downtime? The period of time when a machine is not operating or producing.
- What are Electrodes? The terminals, or metal ends, in a battery that have a positive or negative potential.
- What is Energy? The ability to do work. Energy is measured in and is expressed as the product of power and time.
- What is Energy Density? The ratio of a battery's energy-delivery capability to its weight or volume, measured in watt-hours per pound or watt-hours per cubic inch.
- What is a Flat Discharge Curve? A favorable battery condition where voltage remains relatively steady until the battery is nearly discharged.
- What is Battery Gassing? A buildup of flammable hydrogen within a battery, usually due to overcharging. Some batteries have pressure release valves to prevent gassing.
- What is a Gel Cell? Another name for a sealed lead acid battery.
- What is a Lead Acid Battery? One of the more common secondary cell battery types. Lead acids are rugged and inexpensive per watt hour.
- What is a Lithium Battery? A name used to describe several different types of batteries that use energy-dense,lightweight, and highly reactive lithium. Though relatively expensive, lithium cells are quickly becoming a popular battery choice.
- What is Lithium Ion? A newer, rechargeable lithium-based battery. Though volatile and expensive, lithium ion has very high energy density and is increasingly popular.
- What is Lithium Polymer? A newer, rechargeable lithium-based battery. Lithium polymer was developed as a lower cost, more stable version of the lithium ion cell.
- What is Nickel Cadmium? A common type of secondary cell battery that can go through thousands of charging cycles. Nicads have a good flat discharge curve, but can potentially suffer from the memory effect.
- What is Nickel Metal Hydride? A type of secondary cell that is becoming a popular alternative to NiCads. NiMH batteries are more environmentally friendly and show a reduced memory effect.
- What is Power? The product of current in amps and voltage in volts. Power is measured in watts.
- What is a Primary Cell? A type a cell that cannot be recharged. Primary cell batteries are usually thrown away once their charge is spent.
- What is Renewable Energy? A type of energy like sunlight or wind that is naturally and continually replenished without being depleted.
- What is Reserve Capacity? The number of minutes a battery can maintain a useful voltage under a 25A discharge. Reserve capacity is often a truer test of battery life than amp hours.
- What is Sealed Lead Acid? A type of secondary cell with a semisolid electrolyte that eliminates some of the drawbacks of regular lead acid batteries. While more expensive, SLA batteries can be used in any position and require little maintenance.
- What is a Secondary Cell? A type of cell that can be recharged. Running current through a secondary cell restores its chemical potential.
- What is a Self Discharge? Capacity loss during storage due to the internal leakage between a battery's metal plates. All batteries eventually self discharge.
- What is Service Life? The length of time a battery is expected to be in operation before being replaced.
- What is Battery Shelf Life? The length of time a battery can remain in storage without losing its energy capacity. The metal plates eventually leak and react with each other, even though not in use.
- What is a Sloping Discharge Curve? An unfavorable battery condition where voltage drops almost immediately and gradually decreases as a battery is discharged.
- What is Sulfation? An effect of overcharging or other environmental conditions in lead acid batteries that leads to permanent capacity loss. Flakes of lead sulfate break away from the plates and fall to the bottom of the cell, where they can no longer react and produce energy.
- What is Volume? The amount of three-dimensional space that an object occupies. Volume is measured in cubic inches.
- What is a Watt? A unit used to express electrical power. A watt is the product of amps and volts.
- What are Electrodes? The terminals, or metal ends, in a battery that have a positive or negative potential.
- What is Energy? The ability to do work. Energy is measured in Wh and is expressed as the product of power and time.
- What is Energy Density? The ratio of a battery's energy-delivery capability to its weight or volume, measured in watt-hours per pound or watt-hours per cubic inch.
- What is a Flat Discharge Curve? A favorable battery condition where voltage remains relatively steady until the battery is nearly discharged.
- What is Gassing? A buildup of flammable hydrogen within a battery, usually due to overcharging. Some batteries have pressure release valves to prevent gassing.
- What is a Gel Cell Battery? Another name for a sealed lead acid battery.
- What is Lead Acid? One of the more common secondary cell battery types. Lead acids are rugged and inexpensive per watt hour.
- What is Lithium? A name used to describe several different types of batteries that use energy-dense,lightweight, and highly reactive lithium. Though relatively expensive, lithium cells are quickly becoming a popular battery choice.
- What is Lithium Ion? A newer, rechargeable lithium-based battery. Though volatile and expensive, lithium ion has very high energy density and is increasingly popular.
- What is Lithium Polymer? A newer, rechargeable lithium-based battery. Lithium polymer was developed as a lower cost, more stable version of the lithium ion cell.
- What is Nickel Cadmium? A common type of secondary cell battery that can go through thousands of charging cycles. Nicads have a good flat discharge curve, but can potentially suffer from the memory effect.
- What is Nickel Metal Hydride? A type of secondary cell that is becoming a popular alternative to NiCads. NiMH batteries are more environmentally friendly and show a reduced memory effect.
- What is Power? The product of current in amps and voltage in volts. Power is measured in watts.
- What is a Primary Cell? A type a cell that cannot be recharged. Primary cell batteries are usually thrown away once their charge is spent.
- What is Renewable Energy? A type of energy like sunlight or wind that is naturally and continually replenished without being depleted.
- What is Reserve Capacity? The number of minutes a battery can maintain a useful voltage under a 25A discharge. Reserve capacity is often a truer test of battery life than amp hours.
- What is Sealed Lead Acid? A type of secondary cell with a semisolid electrolyte that eliminates some of the drawbacks of regular lead acid batteries. While more expensive, SLA batteries can be used in any position and require little maintenance. They are not highly volatile or combustable and this proven technology has very reliable performance with long term cost savings. At a cost savings to you, there is no need for internal laptop battery.They are also approved for charging in corridors and in patient rooms (JCAHO Compliant)
- What is a Secondary Cell? A type of cell that can be recharged. Running current through a secondary cell restores its chemical potential.
- What is a Self Discharge? Capacity loss during storage due to the internal leakage between a battery's metal plates. All batteries eventually self discharge.
- What is Battery Service Life? The length of time a battery is expected to be in operation before being replaced.
- What is Battery Shelf Life? The length of time a battery can remain in storage without losing its energy capacity. The metal plates eventually leak and react with each other, even though not in use.
- What is a Sloping Discharge Curve? An unfavorable battery condition where voltage drops almost immediately and gradually decreases as a battery is discharged.
- What is Sulfation? An effect of overcharging or other environmental conditions in lead acid batteries that leads to permanent capacity loss. Flakes of lead sulfate break away from the plates and fall to the bottom of the cell, where they can no longer react and produce energy.
- What is Volume? The amount of three-dimensional space that an object occupies. Volume is measured in cubic inches.
- What is a Watt? A unit used to express electrical power. A watt is the product of amps and volts.
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