Where do I dispose of my old batteries?
What is a NiCd battery?

What is a NiMH battery?
What is a Lithium Ion battery?
What is a Lithium Polimer battery?
What is battery "Memory Effect"?

Which infrared receivers are in theatres (RF)?
Which is best Infrared or Radio Frequency (RF)?


Where do I dispose of batteries?


The recycling and disposal of all “portable” batteries (i.e. AAA, AA, watch and bespoke telephone batteries of all various battery chemistries) is a specialist process.


Please refer to the www.BatteryBack.org  web site for local details or call 0844 800 5671


What is a NiCd (NiCad - Nickel Cadmium Battery)?

NiCd is short for nickel cadmium (NiCad). It gets its name from the two primary elements of the battery. The NiCd battery's creation is attributed to Waldemar Jungner, who first made one in 1899. However, because his work was relatively unknown at the time, mainstream attribution for the invention went to Thomas Edison. NiCd remained for a long time the undisputed main way of recharging a battery.

What is a NiMH (Nickle Metal Hydride) battery?

NiCd reigned supreme for quite a while. Then, NiMH came along. NiMH stands for nickel-metal hydride and was created in 1989 by Masahiko Oshitani, who worked for GS Yuasa Company. The NiMH battery was designed from a nickel/hydrogen hybrid battery and proved to be a powerful battery in its own like, quickly replacing the NiCd for various reasons. The NiMH battery is used for a variety of devices, including small electronics.
NiMH Superiority

When NiMH batteries came into the mainstream, people began to realize that the newer NiMH battery far exceeded that of the older NiCd. Furthermore, the NiCd was also much safer then the cadmium-based battery and did not fall victim to the memory effect that was such a staple of the NiCd batteries. In short, the NiMH battery is superior to the NiCd battery.

What is the Memory Effect?

The greatest problem with NiCd batteries is what is known as "the memory effect." When an NiCd battery has been charged a certain amount of times, eventually the battery starts thinking its maximum charge is something that it really is not. In other words, the battery says it is 100 percent charged, but in reality it is only 65 percent charged. Although methods do exist to reverse the memory effect, it is important to state that the NiMH batteries do not have this problem.

NiMH Superiority

When NiMH batteries came into the mainstream, people began to realize that the newer NiMH battery far exceeded that of the older NiCd. Furthermore, the NiCd was also much safer then the cadmium-based battery and did not fall victim to the memory effect that was such a staple of the NiCd batteries. In short, the NiMH battery is superior to the NiCd battery.

Environmental Concerns

With every battery, there are environmental concerns. The NiCd, in particular, was highly controversial because the element cadmium is considered one of the most toxic elements in the world. If the battery leaked or exploded, it could cause serious damage and endanger the lives of anyone around them. The NiMH, on the other hand, has no known environmental concerns.

What is a Lithium Ion Battery?

To get scientific for a moment, a lithium ion battery is created when lithium moves from the negative to positive point when discharging and the positive to negative point while charging. The result? A rechargeable battery with great shelf life and power ratio, at the detriment of being difficult and costly to produce, as well as unstable. Lithium ion batteries are used in everything from your cell phone to the most high-end electric cars of the day, and while they are still more expensive to produce vs. Ni-Mh batteries, costs are falling.


Lithium ion batteries start to degrade from the moment they are made, and, in fact, will become inoperable after two to three years even if they aren't used.

What is a Lithium polymer battery?

Lithium ion batteries were developed in the 1970s and became commercially available at the end of the 1990s and quickly became ubiquitous in many mobile electronic devices. Their popularity grew because of their smaller size and the fact that they had no memory effect, unlike other rechargeables of the time, most notably nickel metal hydrides. Lithium polymer batteries, though not having the same capacity as lithium ions, were developed in the 1990s and are even smaller in size than lithium ion batteries.

TV Listening

Q: Should I use my TV Listener with or without my hearing aid/s?

A: It depends on personal preference and degree of hearing loss. For example: if you can hear fairly well on the telephone without a hearing aid, then your hearing loss is only mild to moderate. So rather than putting your hearing aid in to follow the TV, some people with a mild hearing loss prefer to listen without their hearing aids and use the headset (stethoset) receiver, directly in the ears. This type of receiver will produce a richer sound quality than the type heard through many hearing aids. If their loss is more severe it is recommended that they keep their hearing aid in and listen via the “T”switch when using a neck loop or room loop.

Q: Is an RF (radio frequency) transmission system ‘better’ than an IR (infrared) system?

A: The sound quality is no different. You have freedom of movement with RF transmission, i.e. you can listen to sound outside of the 4 walls that surround your TV or radio. However; there is a greater risk of interference with an RF system from other similar systems. In the UK there are only 3 discrete radio frequencies available for this type of equipment (with some products only using 2 of the 3). This means that it is likely that you could pick up a signal from similar "cordless" headphones etc. being used by someone else in the same house your a near neighbour (given that the signal travels up to 100 feet).


Q: Which infrared receivers are used in theatres & cinemas?

A: To improve access for the hearing impaired we can install a 1-channel Infrared Transmission System enabling the user to listen to mono sound at their preferred volume directly from the performance via infrared stethoset headphones and transmitters throughout the auditorium. A 2-channel system will either supply stereo sound in the same way, or transmit performance sound plus Audio Description* for the visually impaired, providing live audio commentary describing the appearance of the stage, performers clothing etc.


Fire Safety

Q: How can I ensure my family and home are as safe as possible from the risk of fire?

1. Don't just fit one smoke alarm (BE-1280 or 85 in 433 & BE-1530 or 50 in 868) - fit a minimum of one on each level of your home, and preferably in all hallways, living and sleeping areas - and check them regularly. There are several types of smoke alarm - choose the right one for the right location.
2. Make a fire action plan so that everyone in your house knows how to escape - and fit alarms with an emergency light to help your escape and to help the hard of hearing. If a fire is in its very early stages, only tackle it yourself if you can do it safely.
3. Ensure that you have fire extinguishers and fire blankets close to hand. If you have a fire extinguisher or blanket, be careful about where you keep it - it should be easy to get to in an emergency, never put it away in a cupboard, don't mount it above a cooker or heater.
4. A fire blanket is most useful in the kitchen. A fire extinguisher is best placed in the hall and taken where needed.
Further advice is available from the Government's dedicated fire safety website http://www.firekills.gov.uk/

Who should I contact to arrange a Home Fire Safety Visit?

To arrange a Home Fire Safety Visit please contact the Community Fire Safety Department at your local Fire & Rescue Service via the links below.
Cumbria: Contact Joe Little, Tel 01900 822503
*Alternatively, a SMS text facility has been set up in Devon to allow access for the deaf and hard of hearing. Simply send your text message to 07800 002476 and they will respond via text to arrange a Home Fire Safety Check.
Dumfries & Galloway
Durham & Darlington
East Sussex
Hereford & Worcester
Highland & Islands
Isle of Wight
Lothian & Borders
Mid & West Wales: English site / Welsh site
Northern Ireland
North Yorkshire
North Wales
South Wales
South Yorkshire
Tyne & Wear
West Midlands
West Sussex
West Yorkshire


Disability Discrimination Act

Q: Who has to comply with the DDA?

A: The aim of the Disability Discrimination Act (1995) is to prevent discrimination against disabled people including the hearing impaired and visually impaired. The act was recently extended to cover education in schools and colleges and was strengthened further in October 2004 as the Disability Rights Commission’s (DRC) new Code of Practice came into effect.
Service Providers: i.e. companies or organisations offering goods, facilities and services to the general public, must make ‘reasonable’ adjustments to ensure that they do not unlawfully discriminate against disabled people. Employers must also take measures to ensure that existing and potential employees are not disadvantaged in the workplace.
Under the Act ‘reasonable adjustments’ include the provision of auxiliary aids including induction loops, infra-red or radio transmission systems, to enable a hard of hearing person to access goods, facilities or services available to the general public. Service providers do not have to make any permanent adjustment to their building. This however changed as from October 2004, when service providers are now required to install permanent systems where it is impossible or unreasonably difficult for a hard of hearing person/disabled to make use of the services.
Service providers who fail to make adequate provision for people with hearing disabilities face prosecution. Furthermore, it is not enough to simply install a system – it must be properly maintained and staff must know how to use it (DDA, Auxiliary aids and services 5.13)

Examples of service providers covered in the Act:

. Telecommunications and Broadcasting Organisations
. Utility Companies such as gas, electric and water suppliers
. Leisure Centres, Football Stadia, National Parks and Health Clubs
. Bus and Railway Stations, Airports and Travel Agencies
. Shops, Hairdressers, Post Offices, Banks and Building Societies
. Hotels, Restaurants, Cinemas, Theatres and Pubs
. Hospitals, Doctors' Waiting Rooms, Clinics
. Solicitors’ Offices, Courts, Churches and Mosques