NiMH Battery Construction
Cells
NiMH (Nickel Metal Hydride) batteries are rechargeable, utilising nickel oxide hydroxide and a hydrogen-absorbing alloy as electrodes with a potassium hydroxide electrolyte. They share similarities with Nickel-Cadmium (NiCd) batteries but offer greater capacity, improved energy density, and resistance to the "memory effect." NiMH cells, available in various sizes, boast higher capacity and voltage compared to NiCd cells of the same size and weight. This makes them ideal for powering a variety of portable electronic devices.
Packs
Our NiMH custom packs provide versatility to meet your specific requirements. We maintain a diverse stock of cells, including sizes like 2/3 AAA, 2/3 AA, 2/3AF, 4/5AF, AAA, AA, and Sub C, which can be configured in any desired arrangement. These packs are meticulously crafted using pure nickel tabs, available in double or treble tagging, and assembled using capacitor discharge welding for robust connections. For extra insulation and protection, we use either Kapton, Nomex, or TMK tapes. You can select multi-strand silicone leads of your preferred length and add your preferred connector. Our packs are neatly wrapped in heat shrink for added protection.
NiMH Battery Features
High-Energy Density
NiMH batteries possess a higher energy density compared to NiCd batteries, allowing them to store a greater amount of energy within the same volume.
Environmentally Friendly
NiMH batteries are considered to be more environmentally friendly than NiCd batteries, as they don't contain toxic heavy metals such as cadmium.
No Memory Effect
NiMH batteries have a lower tendency to develop a memory effect compared to NiCd batteries, meaning they do not need to be fully discharged before being recharged.
High Cycle Life
NiMH batteries have a high cycle life, which means they can undergo many recharge and discharge cycles before their performance begins to degrade.
Cost-Effective
NiMH batteries are generally less expensive compared to some other battery chemistries, making them a cost-effective option for some applications.
Possible Applications
.jpg)
Toy and Hobby Devices
RC cars, boats, planes, drones and helicopters, electric scooters and ride-on toys, and electronic musical instruments.
.jpg)
Consumer Electronics
Wireless computer peripherals (such as mice and keyboards), portable radios, cordless phones and wireless doorbells.
.jpg)
Airsoft
Automatic and semi-automatic airsoft guns, tactical flashlights, laser sights, radio communication devices and chronographs.
Nickel-Metal Hydride
NiMH batteries provide high capacity, long lifespan and reliable performance, making them ideal for everyday electronic devices. They maintain a consistent voltage output and are rechargeable, offering an eco-friendly and cost-effective option compared to traditional alkaline batteries.
Frequently Asked Questions
Nickel-Metal Hydride (NiMH) batteries are generally considered safe when used and handled properly. However, like all batteries, they do carry some risks if they are mishandled or damaged. To minimise the risks associated with NiMH batteries, it is important to handle them carefully and avoid exposing them to extreme temperatures or humidity. They should be kept away from flammable materials, direct sunlight, and water. It is also important to use a compatible charger that is designed for NiMH batteries to avoid overcharging or overheating.
NiMH batteries do not contain toxic materials such as lead or cadmium, making them a safer and more environmentally friendly option compared to some other types of batteries. However, they should still be handled and disposed of properly to avoid any potential harm to the environment.
The lifespan of NiMH batteries can vary depending on factors such as usage, storage conditions, and charging habits. On average, NiMH batteries can last between 2 to 5 years, or around 500 to 1000 charge-discharge cycles. However, the actual lifespan may be shorter or longer depending on the specific battery and its usage patterns. Regular maintenance and proper charging can help extend the lifespan of NiMH batteries.
Here are some tips to extend the lifespan of your NiMH battery:
-
Charge the battery properly: NiMH batteries can be charged with a standard charger or a smart charger that can detect when the battery is full and stop charging. Overcharging can damage the battery, so it is important to follow the manufacturer's instructions for charging.
-
Store the battery properly: NiMH batteries should be stored in a cool, dry place, away from direct sunlight or heat sources. Avoid storing the battery in a fully charged or fully discharged state for an extended period of time. A partially charged battery is ideal for storage.
-
Use the battery regularly: Regular use of the battery can help maintain its capacity and prolong its lifespan. If the battery is not used for an extended period of time, it may lose some of its capacity.
-
Avoid over-discharging the battery: NiMH batteries can be damaged if they are fully discharged or over-discharged. It is important to monitor the battery's voltage and avoid using it until it is completely drained.
-
Use the right charger: It is important to use a charger that is designed for NiMH batteries. Using the wrong charger can damage the battery and shorten its lifespan.
-
To safely store and transport NiMH batteries, it is recommended to follow these guidelines:
-
Store the batteries in a cool and dry place with temperatures between 0°C to 30°C. Avoid exposing them to extreme temperatures or humidity.
-
Keep the batteries away from flammable materials, direct sunlight, and water.
-
If storing for an extended period of time, make sure to charge the batteries fully before storage and recharge them every 6-12 months.
-
Transport the batteries in a protective case or holder that can prevent physical damage or short-circuiting.
-
Avoid leaving the batteries unattended while charging, and use a charger specifically designed for NiMH batteries.
-
Disconnect the batteries from the device when not in use for extended periods of time.
-
Do not mix different types or models of NiMH batteries together in the same device or charger. Use the same brand, capacity, and age of batteries together.
-
NiMH batteries are charged using a NiMH battery charger. These chargers are specifically designed for NiMH batteries and use a charging algorithm that is different from the algorithm used for charging other types of batteries, such as NiCd or lead-acid batteries. NiMH batteries can be charged using a standard charger, but using a NiMH-specific charger is recommended to ensure optimal charging and to prevent overcharging, which can reduce the battery's lifespan. It is also important to follow the manufacturer's instructions for charging the battery, as overcharging or charging at too high a rate can cause the battery to overheat or become damaged.
If a NiMH battery gets damaged, you should immediately remove it from any devices and store it in a cool, dry place away from flammable materials. Do not attempt to recharge a damaged NiMH battery or use it in any devices. You should also dispose of the damaged battery properly, following any local regulations for the disposal of hazardous waste. It's important to handle damaged NiMH batteries with caution, as they may leak, overheat, or even explode if not handled properly.
NiMH batteries should be disposed of properly at a designated recycling facility or program. Do not dispose of them with regular household waste. Many battery manufacturers and retailers have recycling programs or provide information on where to recycle their batteries. Contact your local recycling centre or waste management facility to find out how to properly dispose of NiMH batteries in your area.
We also offer a battery takeback scheme as part of our battery recycling initiative with BatteryBack and WeeeCare.
Data Sheets
Filter by: