OVEMB7425LI – 7.4V 2.6Ah Li-ion Emergency Lighting Battery, With a Higher Capacity For Greater Reliability

Other Information for the OVEMB7425LI 

Cross referenced with other manufacturers part numbers:

ZS 18650 1800mAh 7.4V
BBL 2/18650-A-2S1P
BBL 2/18650-A-AV
OVIA OVEMB7418LI
OVIA OVEMB7425LI

If a connector is fitted please check that the plug is correct and that the red + lead is in the correct position. If any terminals are fitted then please check that the sizes of these are correct.

Lithium-ion (Li-ion) batteries are increasingly the industry standard for powering emergency lighting. They offer superior energy density, a compact footprint, and a long cycle life compared to traditional alternatives like NiCd or Lead-Acid.

The primary considerations and best practices for Li-ion emergency lighting include:

Preferred Chemistry LiFePO4

While consumer electronics use various lithium chemistries, emergency lighting primarily relies on Lithium Iron Phosphate LiFePO4. Because emergency lights typically operate in a “standby” mode (constant trickle charging rather than full cycling), LiFePO4 is significantly less prone to internal degradation and thermal issues.

Key Advantages

Extended Lifespan: They boast a longer cycle life, frequently lasting 8–10 years and reducing maintenance or replacement cycles.

Energy Density: They pack more power into a lightweight, compact design, making installation easier and allowing for sleeker emergency fitting designs.

Low Self-Discharge: They lose only about 3-5% of their charge per month, maintaining readiness even if unused for long periods.

Eco-Friendly: Unlike Nickel-Cadmium, lithium is generally not classed as hazardous waste.

Critical Requirements & Safety

Thermal Management: Li-ion batteries can be sensitive to extreme heat and overcharging, which can trigger “thermal runaway”. It is highly recommended to only use systems that feature robust thermal monitoring and smart-charge battery drivers.

Protection Circuits: Good quality Li-ion emergency luminaires will have built-in Battery Management Systems (BMS) or protection circuits to prevent over-voltage and overheating.

Ovia UK is a prominent manufacturer and distributor of professional lighting and control solutions. Launched as an independent entity in 2019, it operates as a dedicated subsidiary of the established Scolmore Group.

Key Offerings

Product Range: Ovia offers over 900 individual product lines covering domestic, commercial, industrial, amenity, and emergency lighting. This includes floodlights, bulkheads, downlights, and advanced LED panels (such as the Inceptor Slate range).

Inceptor Brand: Ovia’s premium, highly regarded range of sophisticated lighting and fire-rated downlights are branded under Inceptor.

Design Services: Ovia provides a dedicated, free lighting and connection design service for commercial projects. This assists electrical contractors and consultants in creating compliant and efficient schemes.

Sustainability: Through the Scolmore Group, the company focuses on high-efficiency, sustainable lighting solutions and circular economy practices.

Where to Buy

Ovia’s products are distributed exclusively through reliable wholesale channels. You can find stockists and browse their extensive digital catalogue via the Ovia UK official website or utilize the Scolmore Group mobile application to build and manage project quotes.