C&D TEL Series - Telcordia-Certified Telecom Batteries with 10+ Year Design Life
Engineered for Critical Telecom Infrastructure. C&D Technologies TEL Series batteries deliver Telcordia SR-4228 certified reliability with 10+ year design life for mission-critical communication systems. These C&D Technologies VRLA batteries feature NEBS GR-63 CORE compliance and TAA certification for carrier-grade installations where network uptime is non-negotiable.
As battery specialists since 2010, we supply telecom battery solutions for cell towers, central offices, and remote infrastructure where service level agreements depend on backup power reliability.
VRLA AGM Sealed Lead Acid
30Ah to 255Ah
10+ years (Telcordia SR-4228)
Top mount or True Front Access
Why Telecom Engineers Specify TEL Series
The C&D TEL Long Duration series combines Telcordia SR-4228 certification with NEBS GR-63 CORE compliance for carrier-grade reliability. Absorbed Glass Mat technology delivers 99%+ gas recombination efficiency, eliminating ventilation requirements while the flame-retardant UL94 V-0 case meets National Electrical Code standards for unsprinklered equipment rooms.
Available in capacities from 30Ah to 255Ah, TEL Series scales from remote cell sites to major switching centers. The thermally welded case-to-cover bond prevents acid leakage, while multicell design reduces individual unit weight for simplified installation in densely-packed equipment racks.
Telcordia-Certified vs. Generic Telecom Batteries
| Feature | Generic Batteries | TEL Series |
|---|---|---|
| Design Life | 4-6 years typical | 10+ years (Telcordia certified) |
| Temperature Range | Limited outdoor capability | -40°F to 140°F (NEBS qualified) |
| Gas Recombination | 95-98% efficiency | 99%+ AGM technology |
| Federal Projects | May require waivers | TAA Compliant (no restrictions) |
| Case Construction | Standard flame retardant | UL94 V-0 + thermally welded seal |
Critical Telecom Applications
- Cell Towers & Remote Sites: Extended runtime during grid outages with minimal maintenance access
- Central Office Equipment: Switching centers and core network infrastructure requiring 24/7 reliability
- Microwave Relay Stations: Remote mountaintop installations with 12-18 month service intervals
- Emergency Services Networks: 911 call centers and first responder systems where failure impacts life safety
Compatible with: Cisco, Juniper, Nokia, Ericsson, and Ciena -48VDC telecom power systems. Direct replacement for existing C&D TEL installations—no rack modifications required.
Industry Certifications & Compliance
- NEBS GR-63 CORE: Earthquake zone 4 seismic qualification, temperature cycling -40°F to 140°F, 95% humidity exposure testing
- Telcordia SR-4228: 10+ year life validation through accelerated aging protocols and extended float testing
- TAA Compliant: Meets Trade Agreements Act requirements for federal telecom procurement without waivers
- Transport Classification: Non-hazardous material (IATA/ICAO A67, DOT-CFR Title 49, IMDG Exception 238)
- Safety Standards: UL1989, UL1778, UL94 V-0 flame-retardant case for NEC Article 480 compliance