What Is a Front Terminal Battery?
A front terminal battery is a specialized lead acid battery design where all electrical terminals are located on the front (top) face of the battery, rather than on the top surface or sides. This front-access terminal design was developed specifically for telecom rack installations and has become the industry standard for telecommunications backup power applications worldwide.
Design Features of Front Terminal Batteries
Front terminal batteries combine the reliability of VRLA (Valve-Regulated Lead Acid) technology with an optimized mechanical design:
- Front-access terminals: All cable connections made from the front, eliminating the need to reach around or behind the battery
- Compact 19-inch rack compatible form factor: Designed to fit standard telecom equipment racks
- Reduced depth: Shallower case depth than traditional top-terminal batteries, saving valuable floor space
- Integrated busbar systems: Multiple batteries can be quickly connected in series with front-mounted busbars
- Sealed VRLA construction: No maintenance required, can be installed in any orientation
Telecom Rack Applications
The telecom industry standardized on front terminal batteries because of the unique requirements of Base Transceiver Station (BTS) equipment rooms:
Space Efficiency
Tower company equipment rooms are typically small (3-5 square meters). Front terminal batteries can be mounted in standard 19-inch racks alongside BTS equipment, eliminating the need for a dedicated battery room. The front-access design allows technicians to make all connections without moving or disturbing adjacent equipment.
Quick Installation and Maintenance
Time is money at telecom sites – every site visit costs money. Front terminal batteries with integrated busbar systems can be installed or replaced in under 30 minutes, versus 2-3 hours for traditional top-terminal battery banks requiring custom cable routing.
Standardization Benefits
Telecom operators with thousands of sites worldwide benefit from standardizing on front terminal batteries. Procurement is simplified, spare parts inventory is reduced, and field technicians only need to learn one battery installation procedure.
UPS Applications for Front Terminal Batteries
Beyond telecom, front terminal batteries are widely used in uninterruptible power supply (UPS) systems:
- Data center rack-mount UPS: Compact front terminal batteries fit inside UPS cabinets
- Network closet UPS: Ideal for small server rooms and network equipment rooms
- Industrial control systems: Backup power for SCADA systems and process control equipment
- Hospital and medical equipment UPS: Reliable backup for critical life-support and diagnostic equipment
- Financial trading systems: Zero-downtime backup for trading floors and financial data centers
Key Specifications for Front Terminal Batteries
- Voltage: 12V is most common (provides 4 batteries for a 48V system)
- Capacity range: 12V 55Ah to 12V 250Ah
- Terminal type: M6 or M8 threaded terminal with front-access studs
- Float life: 8-12 years at 25C (AGM), 10-15 years (Gel)
- Self-discharge: Approximately 2-3% per month
- Certification: IEC 60896, UL, CE, UN38.3
CHISEN Front Terminal Battery Range
CHISEN Battery manufactures a comprehensive range of front terminal batteries for telecom and UPS applications: CH-FT 12V 55Ah, CH-FT 12V 65Ah, CH-FT 12V 75Ah, CH-FT 12V 90Ah, CH-FT 12V 100Ah, CH-FT 12V 120Ah, CH-FT 12V 150Ah, and CH-FT 12V 200Ah. All CHISEN front terminal batteries feature flame-retardant ABS casings, copper alloy terminals with anti-corrosion coating, and are certified to international telecom standards.
Contact CHISEN Battery
Jack Chen | General Manager | CHISEN Battery
Tel: +86 131 2666 8999
Email: jack@chisen.cn | www.chisen.cn