Batteries

Question 1

NiCAD
(what does it stand for)
(when was it invented)

Answer 1

Nickel-Cadium battery.

- developed by a Swedish scientist in 1899

Question 2

NiCAD

Benefits (5)

Answer 2

• inexpensive
• charges quickly
• easy to store/ship
• take a high number of charges
• functional in low temperatures

Question 3

NiCAD

Drawbacks (3)

Answer 3

• Not as powerful as some other rechargeable batteries
• Self-discharge while in storage
• Contain toxic metals that are harmful to the environment

Question 4

NiMH
(what does it stand for)
(when was it invented)

Answer 4

Nickel-Metal Hydride

- researched in 1967 by geneva Research Center, was completed in 1987

Question 5

NiMH

(6) Benefits

Answer 5

• 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

Question 6

NiMH Batteries

(4)Drawbacks

Answer 6

• 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

Question 7

2 Common Battery Mounts

Answer 7

V Mount & Anton Bauer’s ‘Gold Mount’

Question 8

ideal temp to retain batteries charge

Answer 8

32 Degrees - 5- Degrees

Question 9

overcharging can

Answer 9

reduce capacity & battery life

Question 10

Overcharging is just as bad as _____

Answer 10

over-discharging - if drained past the safety point.

For example a 12 volt battery should never go to 9 or 10 volts