ELECTRONIC COMPONENTS
Electromechanics |
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Batteries |
Nickel-Metall Hydrid
Nickel-Cadmium (NiCd) and Nickel-Metal Hydrid (NiMH) are similar types of technology which can replace each other in various applications.
Advantages |
Disadvantages |
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+ higher energy density than NiCd (30% and more) |
- 50% more self discharge than NiCd |
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+ environmentally friendly, no constriction for particular countries |
- temperature sensitive |
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- avoid overcharging and beware the cell warming while charging |
Useful things to know about NiMH…
- best stored at a 40% loaded state (formatting after a long storage can be helpful to get the whole capacity back)
- does not get effected by the memory effect that much because it is repairable up to a certain degree (depend on the charger technology), quarterly care helps to avoid lost of energy potential
| Capacity | Voltage | ||
| Cylindrical cells |
550 mAh to 16,000 mAh |
1.2 V |
|
|
AAAA |
550 mAh to 650 mAh |
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|
AAA |
280 mAh to 1,000 mAh |
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|
AA |
600 mAh to 2,700 mAh |
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|
A |
900 mAh to 4,100 mAh |
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|
C |
1,500 mAh to 5,500 mAh |
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|
D |
1,800 mAh to 8,500 mAh |
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|
F |
to 15,000 mAh |
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| Prismatic cells |
650 mAh to 1,350 mAh |
1.2 V, 9 V block |
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| Button cells |
60 mAh to 600 mAh |
1.2 V |
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| Applications: |
- Funktelefone |
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| Features: |
- twice the energy density of NiCd batteries |
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