Open LBC 48V lithium battery pack showing copper busbars, cell sense wiring, harness and control module

Telecom Lithium Battery Packs for OEM Backup Systems

Lithium Battery Company supplies 24V/48V-class LFP and NMC battery designs (22–52V, 1.5–600Ah) for OEM equipment. CANbus, RS485 and SMBus options are reviewed per design. Catalog programs start at 10 units; custom designs at 25. OEM delivery covers the United States, Canada, and Mexico with UN 38.3 transport documentation.

LBC / Telecom Backup

LBC designs telecom lithium battery packs for OEM backup systems and cabinet integration. Start with the equipment voltage window, required autonomy and standby charging behavior. We review outage recovery, temperature, mounting and monitoring together. Catalog reference designs start at 10 units and custom programs at 25, with lead times confirmed in the quote.

Why choose LBC for telecom backup battery packs

Open LBC 48V lithium battery pack showing copper busbars, cell sense wiring, harness and control module

Backup load and required autonomy

Specify backup load and required autonomy for the equipment being supported.

Open LBC 48V lithium battery pack showing copper busbars, cell sense wiring, harness and control module

Standby charging and outage recovery

Coordinate standby charging and recovery after an outage with the existing power system.

Open LBC 48V lithium battery pack showing copper busbars, cell sense wiring, harness and control module

Mounting, temperature and monitoring

Match mounting, temperature limits and monitoring to the cabinet and equipment interface.

Open LBC 48V lithium battery pack showing copper busbars, cell sense wiring, harness and control module

Start your spec

Send equipment load, runtime, voltage window, available space and quantities for a pack proposal.

Get a Quote →
Open LBC 48V lithium battery pack showing copper busbars, cell sense wiring, harness and control module

Get a Quote

Lithium Battery Company designs and builds 48V-class lithium backup battery packs for telecom equipment makers, cabinet and shelter builders, and network integrators. We've been building custom packs since 2014, with hundreds of thousands of packs produced for OEM programs. Telecom backup looks simple (float for years, deliver when the grid drops), but the pack has to work with the rectifier, report to the site controller, and fit a rack or cabinet that was often designed around lead-acid.

Catalog reference designs start at 10 units and custom programs at 25 units. We don't sell individual retail batteries.

What a telecom backup pack has to do

  • Match the -48V DC power system. Most telecom sites run a nominal 48V DC bus. 16-cell LFP packs (51.2V nominal) suit that window, but float and equalize settings on the rectifier must be adjusted for lithium. We review your rectifier's charge profile with the pack.
  • Sit at float without harm. Backup packs spend most of their life fully charged. BMS settings, charge voltage and temperature limits are chosen for that duty.
  • Report to the site controller. RS485, CAN or dry contacts carry alarms, state of charge and faults to the site monitoring system. Specify the protocol and alarm map early.
  • Parallel and scale. Many sites run several modules in parallel. Current sharing, addressing and pre-charge must be designed for the number of modules you plan.
  • Fit the rack or cabinet. 19-inch and 23-inch rack-mount formats or custom cabinet trays, with front-access terminals and handles where needed.
  • Handle the site environment. Outdoor cabinets see heat and cold. Charge is temperature-limited for LFP, so heating or derating may be part of the design.

Replacing VRLA in existing sites

LFP packs replace VRLA strings to save space and weight and to cut replacement frequency, but a swap is not automatically drop-in. Check the rectifier charge settings, low-voltage disconnect, breaker and cable sizing, alarm wiring and floor loading. See lead-acid to LFP replacement and LiFePO4 vs lead-acid for industrial equipment.

Sizing backup runtime

Runtime depends on the site load in watts, the required backup hours, the end-of-discharge voltage the equipment accepts, and the temperature. Send the load and hours you need; we size the energy and the number of modules, and confirm the result in project review.

Program steps and lead times

Requirements review → reference design or custom design → prototype and site-integration check → pilot → volume, with documented change control. Lead times run from weeks to months depending on design scope and cell availability; your quote confirms them.

What to send

Site DC bus voltage and rectifier model, load in watts, backup hours, rack or cabinet format, communications protocol and alarm list, number of parallel modules, environment, first-order quantity and annual forecast. Get a Quote.

Related resources

Telecom Backup battery pack FAQ

What voltage are telecom backup battery packs?

Most telecom sites use a nominal 48V DC power system. 16-cell LFP packs at 51.2V nominal suit that window, with the rectifier's float and charge settings adjusted for lithium.

Can a lithium pack replace VRLA batteries in an existing cabinet?

Often, but it isn't automatically drop-in. Rectifier settings, low-voltage disconnect, breakers, alarms and cabinet fit must be checked first.

Can the battery report alarms to our site controller?

Yes. The BMS can be specified with RS485, CAN or dry-contact alarms mapped to your monitoring system.

Can several modules run in parallel?

Yes, when current sharing, addressing and pre-charge are designed for the number of modules you plan to install.

What is the minimum order and lead time?

Catalog reference designs start at 10 units and custom programs at 25. Lead times run from weeks to months; your quote confirms them.

What determines telecom backup battery capacity?

Capacity depends on the equipment load in watts, required backup hours, the end-of-discharge voltage the equipment accepts and temperature. Send the load and required hours so LBC can review the energy and module requirements.

Recommended OEM Battery Configurations by Voltage Class

Telecom Backup reference voltage classes — catalog ranges, program fit reviewed in the quote
Voltage ClassNominal Voltage (V)Catalog Capacity Range (Ah)ChemistryBMS Protocol OptionsEquipment UseHub Link
24V22–28V1.5–600AhLFP / NMCCANbus / RS485 / SMBus optionsTelecom Backup OEM equipmentBrowse 24V packs →
48V46–52V5–600AhLFP / NMCCANbus / RS485 / SMBus optionsTelecom Backup OEM equipmentBrowse 48V packs →

Related OEM Engineering Guides

Open LBC 48V lithium battery pack showing copper busbars, cell sense wiring, harness and control module

Start your program

389LFP & NMC reference designs