batteries, rechargeable battery buyer's guide, uk home Search

Batteries online, plus a buyer's guide to the different types of rechargeable battery available.

Batteries @ Maplin
- Alkaline, rechargeable batteries, chargers, coin cells and button cells, together with batteries for camersa, camcorders, laptops, mobile phones, cordless phones and Ipods. Other batteries for sale include sealed lead acid batteries, keyfob batteries, battery testers, battery size convertors, boxes and clips.

Rechargeable Batteries Explained

There are four types of rechargeable battery that are currently used in devices such as mobile phones, digital cameras and digital camcorders. These batteries are one of the following four types:

  • Nickel Cadmium (NiCad)
  • Nickel Metal Hydride (NiMH)
  • Lithium Ion (Li-ion)
  • Lithium Polymer (Li-Poly)

Nickel Cadmium Batteries (NiCd, NiCad)

The NiCad rechargeable battery is usually used in toys or small electrical items, such as cordless phones. However, they have a voltage of 1.2 V which is lower than the standard voltage of 1.5 V produced by many disposable batteries and so cannot be used in devices which require a higher voltage. However, the voltage does stay pretty mcuh constant for the life of the charge. They are suited to high current applications such as r/c cars and power tools.

It is important to fully discharge a NiCad battery before recharging it. This is because NiCad batteries are susceptible to the "memory effect", whereby the battery only releases charge down to the point that it was last recharged - ie if you have a NiCd battery that always gets discharged to 30% capacity, eventually it will not discharge to a lower point than 30% charge.

The chemicals in Nickel Cadmium batteries are not good for the environment. They should be recycled wherever possible.

Nickel Metal Hydride (NiMH)

NiMH batteries are an improvement on NiCd. Although they are still susceptible to the memory effect, it is less marked with these batteries. Also, when compared to a NiCd battery of the same size, a NiMH battery will last over 30% longer. They can also be recharged more quickly, and generally have a longer lifespan that NiCd batteries.

Lithium Ion (Li-ion)

Li-ion batteries have become very popular for applications such as mobile phones, because they last 40% longer for both talk times and standby than NiMH, they are not susceptible to the memory effect so you can charge them whenever you want, and they are smaller and lighter enabling devices also to be decreased in size. They will in general have a longer lifespan still than NiMH batteries.

Lithium Polymer (Li-Poly)

Li-Poly offer the latest evolution of the rechargeable battery. They are smaller than Li-ion batteries, being very light and thin, and they can last 100% longer than Li-ion.

 

Budget Batteries
- Extensive range with excellent prices, supplying retail, trade and industry, including AA Cells, AAA Cells, rechargeable including Li-ion, NiMH, NiCad and alkaline
My Memory
- Alkaline and rechargeable batteries, together with batteries for MP3 players, digital camcorders, mobile phones, cordless phones Nintendo DS and Sony PSP.
PentUpEnergy
- Everything from (AA, AAA, C, D and PP3) to the latest for Digital Cameras and Camcorders.

Battery Company
- Wholesale prices on replacement and rechargeable batteries for laptops, cameras, camcorders and alarms.