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Part No:
BB1270
TEMP1
Temperature sensor
included
RoHS
compliant
www.sterling-power.com
www.sterling-power-usa.com
Warranty (2 years return to factory)
Copyright © 2022
Sterling Power
All Rights Reserved
Sterling Power Products
12V to 12V 70A Battery to Battery Charger
latest instructions
Handbook
BB1270
E MARKING
E24 10R06/01 3789 00
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Summary of Contents for Sterling Power Products BBW1270
- Page 1 Part No: BB1270 latest instructions TEMP1 Temperature sensor included Sterling Power Products 12V to 12V 70A Battery to Battery Charger Handbook BB1270 RoHS compliant www.sterling-power.com www.sterling-power-usa.com Warranty (2 years return to factory) Copyright © 2022 Sterling Power All Rights Reserved...
- Page 2 STERLING POWER INTRODUCTION TABLE OF CONTENTS Introduction Table of Contents | Dimension Drawing Welcome Safety and Legal Legal Guidelines / Warranty Statement Safety Guidelines Product Information Basic Wiring Diagram / Installation Orientation Annotated diagram of front section of BB1270 Annotated diagram of connector panel Front digital display functions 3 type of product activation Troubleshooting...
- Page 3 WELCOME Welcome Welcome to the Sterling Power Products Owners Handbook for the product BB1270, the 12V to 12V battery to battery charger (70A input rated). Please take your time to read and fully understand the contents of this Handbook. These guidelines are developed with your safety and the products performance in mind and failure to follow or understand these guidelines may lead to voiding the product warranty or even leading to damage or injury for you or your setup.
- Page 4 STERLING POWER SAFETY AND LEGAL LEGAL GUIDELINES Warranty and Terms Your 100 % satisfaction is our goal. We realise that every customer and circumstance is unique. If you have a problem, question, or comment please do not hesitate to contact us. We welcome you to contact us even after the warranty and return time has passed.
- Page 5 STERLING POWER SAFETY AND LEGAL SAFETY GUIDELINES Product Guidelines Your Sterling Power product should only be utilised for it’s designated purpose. Use the Battery to Battery Charger ONLY : For DC to DC power conversion With fuses protecting both the input and output DC cables In a well ventilated, dry, dust-free and condensation free environment When the Owners Handbook has been read and wholly understood Transport and Storage...
- Page 6 STERLING POWER PRODUCT INFORMATION SIMPLE WIRING DIAGRAM *Label rendered for clarity, Basic installation diagram Here, we hope to provide a very basic installation diagram for the vast majority of installers to follow. If a process is not mentioned here, the chances are that it is not a pre-requesite to get the BB1270 to function.
- Page 7 STERLING POWER PRODUCT INFORMATION UNDERSTANDING YOUR BB1270, PT.1 *Label rendered for clarity, BB1270 Diagram Air Flow Air Flow The top mounting plate. Composed of 2x 5mm wide mounting feet. There are 2x 5mm wide mounting feet at the bottom, too. Location of 2x heat extracting fans.
- Page 8 STERLING POWER PRODUCT INFORMATION UNDERSTANDING YOUR BB1270, PT.1 *Label rendered for clarity, BB1270 Diagram The left large green connector is for direct connection to the input / starter battery. 12V input connection. Ensure the cable thickness is 16mm2 / 6AWG. Ensure this cable is fused at ~80A fuse. These 2 central connectors are for common negative cable.
- Page 9 STERLING POWER PRODUCT INFORMATION PANEL Controls | Battery Type Select LED panel O/P Batt. Volt. Type 2 Lithium Lead Acid Charging Profiles Lithium Charging Profiles Orange LED status: Orange LED status: Fast flashing = Bulk / Fast Charge Fast flashing = Bulk / Fast Charge Slow flashing = Absorption...
- Page 10 STERLING POWER PRODUCT INFORMATION Charge control modes - how to get the BB1270 to turn on and begin charging Automatic Mode (Default) Input voltage Charger on - 13.5 -> 16V This mode is the simplest way to install Charger off - <12.8V the BB1270, however, not the most effective if you are using this BB on a 16mm2 / 6AWG cable...
- Page 11 STERLING POWER Troubleshooting & Faults Troubleshoot - checks to ensure the Firstly, ensure the BB1270 is wired up correctly. Ensure negatives are common and the BB charger’s negative is BB is installed correctly and receiving connected to the starter battery’s negative - avoid connecting to chassis negative. Voltages between common the correct input and output voltages.
- Page 12 STERLING POWER Troubleshooting & Faults If the BB’s performance is reduced it could be because of voltages or temperature: This table shows the performance Criteria Output Power Remark down rating of the BB when input (% of Rated Current) voltage drops at the input terminals of Input voltage less than 12.8V Power reduction due to impotent the BB.
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