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BK Technologies (Relm) BMS1275

Battery Management System, Smart Charging, Low Voltage Disconnect, Disconnect and Diode Isolation, 19 Rack Mount, 1 RU
For RELM/BK S / SD-series, Eclipse2 repeaters and base stations
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Item SKU Number:  181011
FCA point / Shipped from:  USA 
 Download Free Materials:
  
Adobe Acrobat Reader DuraComm_BMS-series_brochure.pdf (438.76 KB)
  
Adobe Acrobat Reader DuraComm_BMS-12-75_user_guide.pdf (483.38 KB)
  
Adobe Acrobat Reader DuraComm_power_supplies_application_guides.pdf (2729.33 KB)
 Item Details:


DuraComm BMS: Battery Management System

The BMS-xx-xx is a complete battery management system for installations, which already have a primary power supply. Smart Charging with Low Voltage Disconnect maintains battery protection by preventing battery failures caused by over-charging or excessively deep discharging. Dual Schottky diodes provide smooth transfer to battery power and seamlessly auto-revert back to the main AC powered source.

The Smart Charger is designed to auto-charge and maintain Gelled electrolyte (Gel-Cell) and liquid electrolyte lead-acid batteries. The charger is a constant current monitoring charger for the charging and maintenance of fixed location UPS, emergency lighting systems, and telecommunications battery backup systems.

The charger is protected against over loading, over-voltage, over-temperature, short circuit and reverse polarity by auto shut down. The charger auto-recovers after fault condition(s) are removed.

Smart Charging: - optimal battery charging. Highly recommended for deep cycle, AGM gel cell batteries.

Low Voltage Disconnect: - stops battery damage due to overdischarge. Automatically disconnects battery at an adjustable voltage and reconnects once power is restored.

Diode Isolation: - provides isolation and seamless transfer to battery when power goes down. No relays to fail or "glitches" to confuse processors and controllers.

Battery Management System Features:

- Commercial grade 12, 24 and 48 VDC systems 110 or 220 VAC input voltage (switch selectable)
- 1 rack unit models include a front panel indicator for battery status and DC output
- BMS-360 (2RU) models include a front panel indicator for power supply unit and a front panel meter for battery voltage and charging current


Models and Specifications:



 Manufacturer's Catalogs and Guides:

These files contain information about the available products from the manufacturer. If you need something that is not on our website, please contact us. We will help you purchase the desired product at a low price.

BK Technologies Catalog 2023
BKR & KNG Accessory Catalog

Published Date: August 2025
BK Technologies BKR Accessory Catalog 2022.pdf
BKR Accessory Catalog

Published Date: March 2022
BK Technologies All Products Catalog
BK Technologies All Products Catalog

Published Date: April 2025


Relm BK Radio BK Technologies is deeply rooted in the public safety radios and communications Industry and manufactures high specification communications equipment of unsurpassed reliability and value for use by public safety professionals and government agencies, as well as radios for use in a wide range of commercial and industrial applications. Advances include a broad new line of leading digital two-way radios compliant with APCO Project 25 specifications.

BK Technologies two-way radios always incorporates the latest technology. The quality and function of the BK Technologies two-way radio can meet your demands for reliable communication. BK Technologies' products are manufactured and distributed worldwide under Bendix King and Relm brand names.





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