Wall-Mount 48V 50Ah LiFePO4 Telecom Backup Battery Compact Space-Saving Design

The BEL-TTW4850 is a space-optimized wall-mount 48V 50Ah Lithium Iron Phosphate (LiFePO4) telecom backup battery designed for urban micro cell sites, street-level small cells, and indoor distributed antenna systems where equipment space is at an absolute premium. With an ultra-slim 88mm depth profile and integrated quick-install wall bracket, this 2.4 kWh battery can be mounted on any vertical surface in equipment closets, stairwells, basements, or street cabinets, transforming previously unusable wall space into reliable backup power. The BEL-TTW4850 enables network densification in urban environments by eliminating the floor space traditionally required for battery cabinets.

The rapid rollout of 5G small cells and urban micro sites has created an acute need for backup power solutions that can fit within the severe space constraints of street furniture, lamp post cabinets, building risers, and underground vaults. Traditional 19-inch rack batteries require dedicated floor-standing or wall-mounted cabinets that consume 3-6U of rack space and project 300-500mm from the wall. The BEL-TTW4850 addresses this challenge with a purpose-designed slim form factor that projects just 88mm from the mounting surface—less than the depth of a standard network switch—while still delivering meaningful 2.4 kWh backup capacity sufficient for several hours of small cell operation during grid outages.

• Wall-Mount Compact Design: At just 440 x 380 x 88 mm and 22 kg, the BEL-TTW4850 can be installed by a single technician using the included quick-install bracket system. The slim profile allows mounting in locations where traditional batteries cannot fit, including behind equipment racks, inside street cabinets, on basement walls, and in building telecommunications closets shared with other utilities.
• Space-Saving 2.4 kWh Capacity: Optimized for micro cell and small cell backup requirements, the 50Ah capacity provides 2-4 hours of typical small cell runtime during grid outages. The capacity is carefully balanced against physical size to maximize power density while maintaining the slim form factor essential for space-constrained urban deployments.
• Quick Deployment Bracket System: The included wall-mount bracket features a hook-and-lock mechanism that enables single-person installation in under 15 minutes. Pre-installed cable management channels route DC power and communication cables neatly along the wall surface, maintaining a clean and professional installation appearance suitable for shared building infrastructure spaces.
• Integrated Cable Management: Built-in cable routing channels and terminal covers conceal all wiring connections, presenting a clean, professional appearance that satisfies the aesthetic requirements of building owners and facility managers for shared infrastructure spaces. Front-panel LED indicators provide at-a-glance status without requiring local display screens or login access.
• IP54 Dust and Moisture Protection: The sealed enclosure protects against dust ingress and water splashes from any direction, enabling installation in semi-exposed locations such as open stairwells, covered parking structures, and street cabinets subject to condensation and occasional water exposure.

The BEL-TTW4850 is purpose-designed for space-constrained telecom installations in urban environments. Primary deployments include 5G small cell street cabinets and lamp post base compartments, indoor distributed antenna system (DAS) nodes in commercial buildings and shopping centers, building telecommunications riser closets serving multiple tenants, metro station and tunnel communications equipment rooms, underground parking garage cellular repeater installations, and campus and enterprise private network edge nodes. The battery also serves as a compact backup solution for security camera systems, access control panels, and IoT gateway devices in smart city deployments.

Each BEL-TTW4850 undergoes cell grading, full cycling verification, BMS functional testing, and 24-hour burn-in. Packaged with wall bracket, mounting hardware, and installation guide in BEL branded carton with custom foam insert. Standard 3-year warranty.