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Part No:
BB12120
TEMP1
Temperature sensor
included
RoHS
compliant
www.sterling-power.com
www.sterling-power-usa.com
Warranty (2 years return to factory)
Copyright © 2021
Sterling Power
All Rights Reserved
Sterling Power Products
12V to 12V 120A Battery to Battery Charger
E MARKING number pending
latest instructions
Handbook
BB12120
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Summary of Contents for Sterling Power Products BB12120
- Page 1 Part No: BB12120 latest instructions TEMP1 Temperature sensor included Sterling Power Products 12V to 12V 120A Battery to Battery Charger Handbook BB12120 RoHS compliant www.sterling-power.com www.sterling-power-usa.com Warranty (2 years return to factory) Copyright © 2021 E MARKING number pending Sterling Power...
- Page 2 Safety and Legal Legal Guidelines / Warranty Statement Safety Guidelines Product Information Basic Wiring Diagram / Installation Orientation Annotated diagram of front section of BB12120 Annotated diagram of connector panel Front digital display functions 3 type of product activation Troubleshooting Troubleshooting and fault finding...
- Page 3 This 12V to 12V battery to battery charger is a device typically installed between a starter battery (input) and a 120A house / domestic / service battery (output). The BB12120 is designed to charge up your 12V domestic / service / auxiliary battery from the power generated from your alternator, whilst your engine is running. It is designed to work with vehicles (old / new) and (boats old / new).
- 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 Sterling Power Pro Charge Ultra 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 Output Battery 12V the BB will stop charging. Lead Acid or Lithium Recommended installation orientation The BB12120 can be mounted in any orientation. However, if the area is prone to getting wet or damp, we recommend the first or second install.
- Page 7 Display panel. More information on page 9. Connection blocks. This region is described in more detail overleaf. This is the area where all the physical installation connections to the BB12120 are made. Also, this region contains additional 2x 5mm mounting feet. PRODUCT INFORMATION...
- Page 8 (Euro 6 engine). Wire a feed from your ignition into this terminal. Ensure that this feed is ~12V when the ignition is live and goes to 0V when ignition is turned off. Once the BB12120 receives its first successful ignition signal it shall render the unit dependent on an ignition signal going forward.
- Page 9 STERLING POWER PRODUCT INFORMATION PANEL Controls | Battery Type Select LED panel O/P Batt. Volt. Lithium Type 2 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 BB12120 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...
- Page 11 Troubleshooting & Faults Troubleshoot - checks to ensure the Firstly, ensure the BB12120 is wired up correctly. Ensure negatives are common and the BB charger’s negative BB is installed correctly and receiving is connected to the starter battery’s negative - avoid connecting to chassis negative. Voltages between common the correct input and output voltages.
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