Batteries Flashcards
1
Q
NiCAD
(what does it stand for)
(when was it invented)
A
Nickel-Cadium battery.
- developed by a Swedish scientist in 1899
2
Q
NiCAD
Benefits (5)
A
- inexpensive
- charges quickly
- easy to store/ship
- take a high number of charges
- functional in low temperatures
3
Q
NiCAD
Drawbacks (3)
A
- Not as powerful as some other rechargeable batteries
- Self-discharge while in storage
- Contain toxic metals that are harmful to the environment
4
Q
NiMH
(what does it stand for)
(when was it invented)
A
Nickel-Metal Hydride
- researched in 1967 by geneva Research Center, was completed in 1987
5
Q
NiMH
(6) Benefits
A
- Have higher capacity than NICAD batteries.
- resists over-charging and over-discharging
- lightweight
- Don’t suffer memory effect (won’t ‘forget’ to achieve full charge over time)
- no hazardous chemicals for environment
- extreme temperature performance
6
Q
NiMH Batteries
(4)Drawbacks
A
- More expensive than other rechargeable models
- Self-discharge rapidly in storage
- Cut Power Suddenly rather than trickle down
- Some only work with manufacturer’s charger
7
Q
2 Common Battery Mounts
A
V Mount & Anton Bauer’s ‘Gold Mount’
8
Q
ideal temp to retain batteries charge
A
32 Degrees - 5- Degrees
9
Q
overcharging can
A
reduce capacity & battery life
10
Q
Overcharging is just as bad as _____
A
over-discharging - if drained past the safety point.
For example a 12 volt battery should never go to 9 or 10 volts
