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Batteries
Facts About Batteries
- The battery can be traced back to the nineteenth century, with the invention of the first Voltaic pile by Alessandro Volta.
- A battery will leak when the battery gets too hot, expanding the paste inside the battery, which forces the chemicals in the battery to leak out of the seals of the battery.
- Batteries may also leak if you mix the two types of batteries - standard batteries and alkaline batteries.
Cylindrical Cell
The cylindrical cell continues to be one of the most widely used packaging styles for primary and secondary batteries. The advantages are ease of manufacture and good mechanical stability. The tubular cylinder can withstand high internal pressures without deforming.
Most lithium and nickel-based cylindrical cells include a positive thermal coefficient (PTC) switch. When exposed to excessive current, the normally conductive polymer heats up and becomes resistive, acting as short circuit protection. Once the short is removed, the PTC cools down and returns to conductive state.
Most cylindrical cells also feature a pressure relief mechanism. The most simplistic design utilizes a membrane seal that ruptures under high pressure. Leakage and dry-out may occur after the membrane breaks. Re-sealable vents with a spring-loaded valve are the preferred design. Some Li-ion cells connect the pressure relief valve to an electrical fuse that opens the cell if an unsafe pressure builds up. Figure 1 shows a cross section of a cylindrical cell.
Typical applications for the cylindrical cell are power tools, medical instruments and laptops. To allow variations within a given size, manufacturers use fractural cell length, such as half and three-quarter formats.
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Specifications:
Nominal voltage of 12 Volts. 55 mAh Nominal capacity.
Also known as: NEDA ..
R15.00
Ex Vat: R13.04
Ex Vat: R13.04
Battery LR44 AG13 Alkaline 1.5V 357 SR44W
Specifications:
Chemical system Zinc / Manganese ..
R8.50
Ex Vat: R7.39
Ex Vat: R7.39
CR1616, 3V, Ø 16mm x 1.6mm (H) Lithium Battery
..
R12.50
Ex Vat: R10.87
Ex Vat: R10.87
CR2016, 3V, Ø 20mm x 1.6mm (H) Lithium Battery
..
R14.63
Ex Vat: R12.72
Ex Vat: R12.72
CR2025, 3V, Ø 20mm x 2.2mm (H) Lithium Battery
..
R15.00
Ex Vat: R13.04
Ex Vat: R13.04
CR2032, 3V, Ø 20mm x 3.2mm (H) Lithium Battery
..
R17.00
Ex Vat: R14.78
Ex Vat: R14.78
CR2450 Lithium-Manganese Coin Battery 3V
Nominal Voltage: 3.0V
Nominal Capacity: 550mAh (on co..
R32.28
Ex Vat: R28.07
Ex Vat: R28.07
Duracell LR03-MN2400 AAA Type, 1.5V (Each)
Nominal voltage: 1.5V
Impedance: 250m-ohm..
R15.13
Ex Vat: R13.16
Ex Vat: R13.16
Duracell LR6/mn1500 Plus Power AA Type, 1.5V (6 Pack)
..
R70.51
Ex Vat: R61.32
Ex Vat: R61.32
Lead Acid Battery 12V 7.0AH (George)
..
R390.00
Ex Vat: R339.13
Ex Vat: R339.13
Lead Acid Battery 12V 7.0AH (Joe)
..
R289.00
Ex Vat: R251.30
Ex Vat: R251.30
Lead Acid Battery 6vV 4.5AH (George)
..
R210.00
Ex Vat: R182.61
Ex Vat: R182.61
LiFe Battery 12V 7.0AH (George)
..
R890.00
Ex Vat: R773.91
Ex Vat: R773.91
LR43 / AG12 / 386 / SR43W
..
R7.57
Ex Vat: R6.58
Ex Vat: R6.58
LR621 / AG1 / 364 / SR621W
..
R4.54
Ex Vat: R3.95
Ex Vat: R3.95
LR754 / AG5 / 193 / SR754W
..
R5.55
Ex Vat: R4.82
Ex Vat: R4.82
Maxell General Purpose Alkaline battery 9V PM3 type
..
R90.00
Ex Vat: R78.26
Ex Vat: R78.26
Maxell General Purpose Alkaline Battery AA type (4 Pack)
..
R79.90
Ex Vat: R69.48
Ex Vat: R69.48
Maxell General Purpose Alkaline Battery AAA type (6 Pack)
..
R99.50
Ex Vat: R86.52
Ex Vat: R86.52
Nickel Strip Tape 0.1 x 5mm for 18650 Battery Spot Welding 2M
..
R70.00
Ex Vat: R60.87
Ex Vat: R60.87
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