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Info on the different types of batteries

Battery Types

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Frequently Asked Questions

Battery Types

The various battery types listed on the site have the following features and typical applications.

Long-life batteries giving up to six times the life of ordinary zinc carbon batteries.
Ideal for appliances demanding a high current drain when being used on an intermittent or continuous basis.

Designed to give significantly longer life than conventional zinc carbon batteries at around half the cost of the long-life alkaline batteries.
Ideal for appliances demanding heavy or continuous use that require low to medium power.

Major features

High Capacity - GP NiMH batteries have high energy density and deliver up to double the capacity of NiCd batteries of similar size.
Superior high rate discharge characteristics - Up to 3C high rate discharge is possible
Broad operating temperature range - (-20 C to 60 C)
Quick charging capability - Rapid charge in about one hour.
Long service life - Under different usage conditions, GP NiMH batteries can deliver 300-1000 charge/discharge cycles.
Excellent overcharge endurance - GP NiMH batteries can be continuously charged at 0.1C rate for one year without leakage or deformation.
Built-in saftely protection mechanism against misuse - A re-sealable safety vent is built in to relieve internal pressure in case of misuse. Polarity reversal and over discharge protection mechanisms are also incorporated in the cell.
Absolutely no memory effect - Discharge is not required before charging.
Environmentally friendlier - No cadmium, lead or mercury are added.
Comprehensive range - GP NiMH batteries comprise of a comprehensive range of different cylindrical and prismatic sizes catering for a wide range of applications.
High reliability - GP NiMH batteries are produced with the best available material and advanced technology, allowing them to perform with outstanding reliability.
ISO 9001 accreditation - Received for design and manufacture of secondary and primary batteries in 1996.

Major Applications

Communications - Cellular phones, cordless phones, transceivers.
Information devices - Notebook computers, personal digital assistants(PDAs), portable facsimile machines.
Audio and video devices - Digital video cameras, LCD TVs, portable DVD, VCD, MD and CD players.
Emergency lighting
Remote controls & security systems
Other applications - Remote control toys, shavers, massagers, electric tooth brushes, handheld vacuum cleaners, power tools, handheld terminals, electrical bicycles etc.

Major Features

Long service life - Depending on usage conditions, GP NiCd batteries can deliver 300 - 1000 charge / discharge cycles.
Superior high rate discharge characteristics - Up to 2C high rate discharge is possible.
Quick charging capability - Rapid charge in about one hour.
Excellent overcharge performance - GP NiCd batteries can be continuously overcharged at O.1C rate for 28 days without leakage or deformation.
Built-in safety features against misuse - Built-in chemical protection against polarity reversal or over discharge. A re-sealable safety vent is incorporated to relieve internal pressure in case of misuse.
No memory effect - Unlike sintered type rechargeable cells, GP NiCd batteries produced with modern foam electrode technology do not exhibit memory effect.
High reliability - GP NiCd batteries are manufactured with the best available material using state of the art technology allowing them to perform with outstanding reliability.

Major Applications

Communications - Cellular phones, cordless phones, pager and transceivers.
Information devices - Notebook computers, personal digital assistants(PDAs), portable facsimile machines.
Audio and video devices - Digital video cameras, LCD TVs, portable DVD, VCD, MD and CD players.
Emergency lighting
Remote controls & security systems<
Other applications - Remote control toys, shavers, massagers, electric tooth brushes, handheld vacuum cleaners, power tools, handheld terminals, electrical bicycles, memory back-up etc.

Offers the benefits of standard Alkaline cells but with rechargeable capability.
Also more beneficial than NiMH cells due to; 1.5v, initially fully charged
Can be stored up to 7 years charged
Can be charged 50 times (although a 500 times may be possible)
N.B. These batteries can only be charged using an Alkaline Battery Charger.

Silver oxide batteries have the most stable voltage characteristics among all types of button-type batteries, as well as delivering the highest performance
Silver oxide batteries use silver oxide for the positive active material. The negative active material is zinc, and the electrolyte is potassium hydroxide
Because of the use of these materials, the silver oxide batteries have a higher operating voltage and an extremely stable power supply. The nominal open-circuit voltage is 1.55 volts
Silver oxide batteries are also far superior in heavy drain uses and suitable for the use in cameras and exposure meters.

Compared with NiMH and NiCd batteries of the same sizes or weights, Lithium Ion batteries are designed to deliver the highest energy output<
A single cell voltage is 3.7V, 3 times that of NiMH batteries. It means a simpler battery configuration and better space utilization for low cell voltages.
Graphite type negative electrode has a steady discharge voltage essential for electronic equipment.
It can be charged in about 1-2 hours.
Lithim Ion batteries can be charged or discharged up to 300 - 1000 times under normal conditions
No memory effect - Li Ion batteries can be recharged after partial discharge without experiencing the memory effect of NiCd batteries
Most Lithium Ion batteries are desiigned and built with internal safety features to resist physical abuse and to prevent overcharge and over current.
Li Ion batteries contain no toxic heavy metals, such as mercury, cadmium or lead.

You can get more detailed technical info and specifications on most types of batteries at the following web sites.

GP. Battery Technical information

Eveready Energizer Battery Handbooks