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Glossary
A B C E F H I L M N P S T U V - Ampere Hour
- The quantity of electricity measured in ampere-hours (Ah) that can be delivered by a cell/battery under specified conditions.
- Anode
- The electrode in a cell/battery where oxidation takes place. During discharge, the negative electrode of the cell/battery is the anode. During charge, the positive electrode is the anode.
Top ^ - Battery
- Two or more cells interconnected in an appropriate series/parallel arrangement to provide required operating voltage and current levels. Under common usage, "battery" is often applied to single cells.
Top ^ - Capacity
- The total number of ampere-hours that can be withdrawn from a fully charged cell/battery under specified discharge conditions.
- Cathode
- The electrode in a cell/battery where reduction takes place. During discharge, the positive electrode of the cell/battery is the cathode. During charge in a rechargeable battery, the negative electrode is the cathode.
- Cell
- The basic electrochemical unit used to generate or store electrical energy. Two or more cells interconnected in an appropriate series/parallel arrangement is a battery. Under common usage, "battery" is often applied to single cells.
- C Rate
- Discharge or charge current, in amperes, expressed in multiples of the rated capacity. For example, C/10 discharge current for a cell rated at 1.5 Ah is: 1.5 Ah/10, or 150 mA.
- Cycle Life
- The number of cycles under specified conditions that are available from a rechargeable battery before it fails to meet specified performance criteria.
Top ^ - Electrode
- The area where the electrochemical processes take place.
- Electrolyte
- The medium that provides the ION transport mechanism between the positive and negative electrodes of a cell/battery.
- Energy
- The output capability of a cell/battery, usually expressed in watt-hours. Mainly used for rechargeable batteries.
- Energy Density
- The ratio of the energy available from a cell/battery to its volume (Wh/L) or weight (Wh/kg). Mainly used for rechargeable batteries.
Top ^ - Float Charge
- A charge at a low rate of current to compensate for self-discharge of a cell or battery. Not recommended for lithium ion or lithium polymer batteries. See Trickle Charge.
Top ^ - HiRate
- Ultralife HiRate® cylindrical batteries, a breakthrough in lithium battery technology, are spiral-wound and provide high capacity with ultra-high rates of discharge - even in extreme temperatures. These Lithium-Manganese Dioxide batteries have no voltage delay at start-up and are significantly safer than any comparable high rate system. Cells have a 10-year shelf life and are available in various standard sizes.
Widely used in military and industrial applications, the batteries are usually configured in multi-cell packs, allowing for optimum voltages and capacities for specific applications. - Humidity
- The amount of water vapor in the air, expressed as a percentage of the maximum amount that the air could hold at the given temperature; the ratio of the actual water vapor pressure to the saturation vapor pressure.
Top ^ - Immersion
- The condition of being placed underwater for a length of time.
Top ^ - LED
- Light-Emitting Diode. A semiconductor diode that emits light when conducting current, and is used in electronic equipment, especially for displaying readings on digital watches, calculators, etc.
- Lithium ION
- Ultralife's Lithium-ION prismatic (rectangular) cells offer high energy density, high capacity and long cycle life in the most common, lightweight sizes - with no memory effect. These cells, which operate over a wide temperature range, are ideal for many portable electronic devices - including rugged military equipment.
- Lithium-Manganese Dioxide
- Ultralife's Lithium-Manganese Dioxide cells and batteries allow full rated capability at start-up (no voltage delay) and are significantly safer than any comparable high rate system. Cells have a 10-year shelf life and are available in various standard sizes.
Top ^ - Memory/Memory Effect
- A phenomenon in which a cell/battery operated in successive cycles to the same, but less than full, depth of discharge temporarily loses the rest of its capacity.
Top ^ - NATO
- North Atlantic Treaty Organization
- NSN
- Government National Stock Number. Assigned to cells and batteries purchased by the Department of Defense and other military/government agencies. Numbers for batteries are in the following format: XXXX-XX-XXX-XXXX
Top ^ - Parallel
- The interconnection of cells/batteries where all the like terminals are connected together. This results in increased capacity.
- PCM
- Protection Circuit Module
- Primary Battery
- A non-rechargeable battery.
- PTC
- The PTC device protects the cell/battery from external short circuits while allowing the cell/battery to continue functioning after a short circuit is removed.
Top ^ - Seawater Activated Batteries
- Utilizing salt water as an electrolyte, Ultralife's Magnesium-Silver Chloride seawater batteries activate instantly, providing high energy in all sea conditions and depths. Shelf life for this chemical system is almost indefinite when stored in appropriate packaging.
- Secondary Battery
- A rechargeable battery.
- Self-Discharge
- The loss of capacity of a cell/battery during storage due to internal chemical action.
- Series
- The interconnection of cells/batteries where the positive terminal of the first is connected to the negative terminal of the second, and so on. This results in increased voltage.
- SmartCircuit
- SmartCircuit™ is the trademark Ultralife uses to brand its family of batteries and chargers that are "smart", meaning they are SMBus compliant.
Top ^ - Thin Cell
- Ultralife Thin Cell® lithium batteries are wafer-thin - providing a unique combination of high energy, long shelf life, wide operating temperature range and light weight. With their ultra-thin prismatic form and a high ratio of active materials to packaging, Thin Cell batteries can efficiently fill most battery cavities.
- Trickle Charge
- A charge at a low rate of current to keep a cell or battery fully charged. Not recommended for lithium ion or lithium polymer batteries. See Float Charge.
Top ^ - Ultralife Part Numbers
- The following prefixes are used in the Ultralife part number system:
U Li-Mn02 Cell
UB Li-Mn02 Battery
UBC Lithium Polymer Cell
UBBC Lithium Polymer Cell Battery
UBP Li-ion Prismatic Cell
UBBP Li-ion Prismatic Cell Battery
UBL Li-ion Cylindrical Cell
UBBL Li-ion Cylindrical Cell Battery
CA Discharge Cable
CH Charger Top ^ - Voltage
- The unit of measurement of electric potential. Voltage is the difference in electrical energy between two points.
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