DuraComm LP-18BC User Manual Download Page 2

WARNING

: The individual user should take care to determine prior to use or installation 

whether this device is suitable, adequate, or safe for the use intended. Since applications 
are subject to great variation, DuraComm makes no representation or warranty as to the 
merchantability, suitability, or fitness of these units for any specific application. Failures 
require investigation as to the cause and/ or repair of the unit. THIS UNIT DOES NOT 
HAVE ANY USER SERVICEABLE PARTS. SERVICE AND REPAIR MUST BE 
REFERRED TO QUALIFIED PERSONNEL. 
 

DESCRIPTION

: The LP-18BC desktop power supply is UL & CUL recognized and 

manufactured to ISO 9001 quality assurance standards. These power supplies convert AC 
or DC input into low noise and ripple, regulated 13.8 volt DC output.    The LP-18BC has 
a built in battery back up and charging circuit with diode isolation for seamless transfer to 
battery if input power is disrupted. Once input power is restored the LP-18BC will 
automatically recharge the battery with 1.5 amps of trickle charging.     
The LP-18BC contains a low voltage cutoff circuit which provides for low voltage 
disconnect when the battery reaches 11.0 volts to prevent battery & load damage. 
 

 

Note: Diagram reflects LP-18BC with Battery & Load   

 

 

 
 

INSTALLATION 

 

1.

 

LOAD- Connect your 12 volt DC device using UL wiring to the LP-18BC 
terminal output marked V (-) and V (+). Be certain to connect Positive (+) to 
Positive (red) and Negative (-) to Negative (black).   

 
2.

 

BATTERY- Connect your 12 volt DC battery using UL wiring to the LP-18BC 
terminal marked B (+) and B (-). Be certain to connect Positive (+) to Positive 
(red) and Negative (-) to Negative (black).   
Note: It is not recommended to connect 2 or more batteries as this will delay 
charging time and if one battery fails it may cause other to malfunction. 

 

OPERATION:

    Insert Power cord into an outlet of the proper voltage.   

Press the ON/OFF (- / O) switch to the “ON” (-) position and observe if indicator 
light on front of unit illuminates. If the indicator fails to light, re-check the 
equipment installation. 
 
 

LIMITED WARRANTY 

 

DuraComm warrants to the initial end user, each power supply manufactured by DuraComm 
to be free from defects in material and workmanship when in normal use and service for a 
period of two years from the date of purchase from an authorized DuraComm dealer. 
 
Should a product manufactured by DuraComm fail or malfunction due to manufacturing 
defect, or faulty component, DuraComm, at its option, will repair or replace the faulty product 
or parts thereof, which, after examination by DuraComm, prove to be defective or not 
operational according to specifications in effect at the time of sale to the initial end user.  
The product that is replaced or repaired under the provisions of this warranty will be 
warranted for the remainder of the original warranty period, only, and will not extend into a 
new two year warranty period. 
 
The limited warranty does not extend to any DuraComm product which has been subject to 
misuse, accidental damage, neglect, incorrect wiring not associated with manufacture, 
improper charging voltages, or any product which has had the serial number removed, 
altered, defaced, or changed in any way. 
 
DuraComm reserves the right to change, alter, or improve the specifications of its products at 
any time, and by so doing, incurs no obligation to install or retrofit any such changes or 
improvements in or on products manufactured prior to inclusion of such changes. 
 
DuraComm requires any product needing in or out of warranty service to be returned to 
DuraComm. All requests for warranty service must be accompanied by proof of purchase, 
such as bill of sale with purchase date identified.  DuraComm is not responsible for any 
expenses or payments incurred for the removal of the product from its place of use, 
transportation or shipping expenses to the place of repair, or return expenses of a repaired or 
replacement product to its place of use. 
 
The implied warranties which the law imposes on the sale of this product are expressly 

LIMITED

, in duration, to the two (2) year time period specified herein. DuraComm will not be 

liable for damages, consequential or otherwise, resulting from the use and operation of this 
product, or from the breach of this 

LIMITED

 

WARRANTY

 
Some states do not allow limitations on the duration of the implied warranty or exclusions or 
limitations of incidental or consequential damages, so said limitations or exclusions may not 
apply to you.    This warranty gives you specific legal rights which vary from state to state. 
 
This warranty is given in lieu of all other warranties, whether expressed, implied, or by law.   
All other warranties, including 

WITHOUT

 

LIMITATION

, warranties of merchantability and 

fitness or suitability for a particular purpose, are specifically

 

excluded.  DuraComm reserves 

the right to change or modify its warranty and service programs without prior notice. 

 

NOTE:

    This device complies with part 15 of the FCC rules.    Operation is subject to the 

following 2 conditions; 1) This device may not cause harmful interference, and 2) This device 
must accept any interference received, including interference that may cause undesired 
operation.

 

Reviews: