4/4000DH-A-UB – 4 Cell 4.8V 4AH NI-CD D Cell Side-by-Side Emergency Lighting Battery
4/4000DH-A-UB
4/4000DH-A-UB
The 4/4000DH-A-UB is a 4.8V, 4000mAh (4.0Ah) rechargeable battery pack specifically designed for emergency lighting and high-temperature applications.
£9.30
Ex.VAT Inc.VAT£11.16
Less Than 10 Available!
Description
4/4000DH-A-UB
Our Batteries and battery packs are NOT to be used in any lighting fitting used in inflammable or hazardous areas. Hazardous areas are explosive atmospheres created by gases, vapours and ignitable dusts or fibers. These can be present in installations such as processing refineries, chemical production facilities, oil/gas platforms, flammable liquids storage facilities, fuel transportation, petrol stations, paint production, paper production etc. It is the customers responsibility to check on the environment that the battery / battery-pack is to be used in.
4/4000DH-A-UB Key features and benefits include:
- Rechargeable with excellent cyclic performance
- Long service life of up to 4 years in emergency lighting applications
- Single cells & multiple pack configurations available for design flexibility
- Fully customisable – any style, connection type & voltage available upon request
- Foamed Nickel technology & 3D mesh structure for higher capacity in smaller can sizes
- High temperature versions tested to ICEL 1010
- Maintenance free
- All popular plugs, leads & tag connections available
- All standard voltage configurations available
- For industrial applications, e.g. emergency lighting
4/4000DH-A-UB Technical Information
Part number 4/4000DH-A-UB
Chemistry NICD
HS code 8507302090
Voltage 4.8V
Capacity 4000mAh
Size (h w d) 130x 32.5 x 62mm
Weight 460g
Lead length 300mm
Other Information for the 4/4000DH-A-UB
Cross referenced with other manufacturers part numbers:
BBL 4/4000DH-A-UB
BM 4VR4D
Existalite BTF096
One Lux D4
Yuasa 4DH4-0L3
Equipment that uses this battery:
NiCd batteries are a type of rechargeable battery that uses nickel oxide hydroxide and metallic cadmium as electrodes. They are known for being rugged, reliable, and able to perform well in demanding conditions, including very high or low temperatures.
However, their use is declining due to the toxicity of cadmium, a “memory effect” that can reduce capacity if not fully discharged, and lower energy density compared to newer technologies like NiMH and Li-ion.
Advantages
Durability: They are rugged and can tolerate deep discharges, making them suitable for harsh environments and high-drain applications like power tools.
Long life: They can last for a high number of charge/discharge cycles.
Performance: They can be recharged quickly and maintain a steady voltage during discharge until they are nearly depleted.
Temperature tolerance: They perform well in both very low (sub-zero) and very high temperatures.
Low self-discharge: They have a low self-discharge rate, which is beneficial for applications like solar garden lights, meaning they hold their charge longer when not in use.
Disadvantages
Toxicity: Nickel cadmium (NiCd). Cadmium is highly toxic and is one of only 6 substances banned by the EU’s RoHS Directive. However, an exemption is in place for batteries in emergency lighting because till recently there have been few suitable alternatives. NiCd batteries are widely used in stand-alone emergency lighting fixtures and in emergency conversion kits.
Memory effect: They can suffer from a memory effect, where the battery’s capacity is reduced if it is repeatedly recharged before being fully discharged.
Low energy density: Compared to newer battery types, they have a relatively low specific energy (energy density).
Environmental restrictions: Due to the cadmium, their use is restricted in many regions and they are being replaced by safer alternatives
Applications
Industrial and safety: They are still used in specific demanding applications like aviation, railway systems, and emergency lighting where their reliability is critical.
Power tools: Historically, they were a popular choice for power tools, but have largely been replaced by NiMH and Li-ion batteries.
Solar applications: They are still used in some solar-powered lights due to their low self-discharge rate and ability to maintain consistent output.
https://www.nvcuk.com/technical-support/view/what-types-of-battery-are-used-in-emergency-lighting-37
Need to know more about 4/4000DH-A-UB – 4 Cell 4.8V 4AH NI-CD D Cell Side-by-Side Emergency Lighting Battery?
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