Lithium Ion Batteries
LED is now the main light source in emergency lighting. Battery technology has caught up:
lithium-ion (Li-ion) is the new standard for demanding emergency lighting.
Lithium-ion
Self-testing, monitoring and connected buildings led manufacturers to design the battery and the luminaire together, as one system. Lithium-ion cells are the best for demanding emergency lighting.
Environmentally friendly
Lithium is not a hazardous waste.
Lightweight and compact
A smaller, lighter battery in the luminaire.
High energy density
More energy from a smaller battery.
Low maintenance
It can be charged at any time.
Works when it's warm
Operates at higher temperatures.
Longer useful life
More discharge cycles before it wears out.
Low self-discharge
About 3 to 5% a month.
Shorter charging times
Less time and cost on site for testing.
Good to know: Li-ion batteries need some charge, and can be damaged if stored for a long time with none.
They cost more to buy than NiCad, but over their life they are better value.
How they compare
The past: NiCad and NiMH
- Then
NiCad Nickel Cadmium
Used for years with halogen and fluorescent lamps: cost-effective, with a good temperature range. But they have a lower energy density and self-discharge, so they need checking and recharging before use, which takes time on site.
- Next
NiMH Nickel Metal Hydride
Typically 30 to 40% more capacity than NiCad, less affected by memory effect, and better with low temperatures in storage and transport.
- Now
Li-ion Lithium-ion
The battery and the luminaire designed together, for demanding emergency lighting.
Up to a 5 year warranty on the luminaire and battery. Register your products within 6 months of purchase.
