Custom Battery Solutions for Emergency Lighting
High-Temperature Reliability & Global Compliance.
Emergency lighting battery compliance is not determined by chemistry alone.
To pass global markets, your battery must meet:
- Emergency lighting product standards (UL 924 / EN 60598-2-22)
- Battery safety standards (IEC 62133 / IEC 61951)
- Transport compliance (UN38.3 / MSDS)
Failure in any layer can delay certification, shipment, or project approval.
Are you facing these challenges?
- Battery swelling or failure in high-temperature environments.
- Confusion over EU 2023/1542 cadmium regulations.
- Customs delays due to missing UN38.3 reports or incomplete documentation.
- Inconsistent backup duration affecting product reliability.
These issues are common in emergency lighting systems — but they are preventable with proper battery design and compliance planning.
Choosing the Right Battery Chemistry
Battery selection in emergency lighting is not only about performance.
It must align with regulatory requirements, temperature conditions, and product design constraints.
| Chemistry | Thermal & Lifespan | Compliance Note | Best Application |
|---|---|---|---|
| NiCd (Nickel Cadmium) | Excellent up to ~70°C 3–4 years |
Classified as industrial battery; allowed in emergency systems under specific use cases. | Legacy exit signs, high-temp safety lighting. |
| LiFePO4 (Lithium Iron) | High stability 8–10 years |
Requires strict BMS design and UN38.3 transport compliance. | Modern LED emergency systems, smart lighting. |
| NiMH (Nickel Metal Hydride) | Moderate 3–5 years |
Eco-friendly; meets broad environmental standards. | Cost-sensitive, lower thermal applications. |
Our Engineering Recommendation
- For high-temperature environments or legacy systems: NiCd remains the most reliable choice.
- For next-generation LED emergency lighting: LiFePO4 offers lower maintenance and longer lifecycle.
Total Cost of Ownership (TCO)
Upgrading to LiFePO4 increases initial cost, but drastically reduces maintenance overhead over 5 years.
Dual-Track Compliance Architecture
A battery pack alone does not guarantee compliance.
Your final product must pass system-level standards in each market.
-
01North America (UL 924 / NFPA 101) Ensures 90-minute emergency operation and approval by authorities (AHJ).
-
02Europe & UK (EN / IEC Standards) Supports discharge duration requirements and system safety compliance.
-
03Global Shipping (UN38.3 / MSDS) Prevents customs delays and ensures safe transportation.
Battery packs certified under IEC 62133 or UL 2054 may still fail final product certification.
Compliance must be evaluated at the system level — not just the cell level. Our engineers design battery packs specifically to pass the rigorous system-level tests of UL 924 and EN 60598-2-22.
How TSJ Sanjun Improves Reliability
We focus on the root causes of battery failure to ensure consistent performance over a long service life:
- Moisture control during cell production to reduce internal degradation.
- Precision pack assembly for stable electrical performance.
- Multi-stage testing before shipment.
- Application-based battery design for different thermal environments.
Typical Applications
When You Should Contact Us
You should consider contacting us if:
- Your current batteries fail under high-temperature conditions.
- You are upgrading from NiCd to LiFePO4 systems.
- Your products require UL, CE, or RoHS certification.
- Your shipments have been delayed due to battery compliance issues.
- You are unsure how EU battery regulations affect your product design.
Request Engineering Feedback
We evaluate your battery design against UL / EU / transport requirements. You will receive initial feedback within 24 hours.
To speed up evaluation, please prepare:
All custom projects are handled under NDA to protect your design and data.