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The Sterling Power Pro Batt Ultra DC to DC battery to battery (B2B) chargers take battery to battery charging, or "Echo Charging", to a whole new level.
The Sterling Power Pro Batt Ultra BB1230 is a 30A fully independent buck (drop voltage) or boost (increase voltage) 12V battery charger. This means the voltage input battery, most often the house bank, can be programmed for it's own optimal charging voltage and the Sterling Pro BB1230 can then send the Start/AUX/Windlass/Thruster battery either a higher or lower voltage than the house bank requires. These units can also independently float the start, windlass or thruster battery, even before the house bank has entered float.
Imagine you have a 600Ah GEL house bank that needs to be charged at 14.1V and a Odyssey TPPL AGM start or windlass battery that needs 14.7V. The Sterling BB1230 can do this! The BB1230 can take an input voltage of as little as 13.3V and boost the output to 15.5V, depending upon the charge voltages chosen. It can even equalize an AUX from a house bank even if the house bank voltage is only at 13.3V.
The BB1230 is perfect for charging a starting, reserve, windlass or bow thruster bank using fully independent 4 stage smart charging. It is not just voltage following the house bank. The Sterling BB1230 is not just a simple "voltage follower", like the Xantrex Echo Charger, it's a true smart battery charger that charges from one DC battery bank to another DC battery bank.
Multiple Activation Modes: Automatic or Manual
Dedicated Voltage Sense Terminals: For those long bow bank runs where voltage drop can be an issue, the BB1260 features dedicated non-current carrying voltage sense leads for accurate sensing of battery terminal voltage.
Step-up options: Fully programmable including custom options and absorption duration customization
Boost / Reduce Charging: The B2Bs ensure batteries get the correct charging profile irrespective of high or low input voltages.
Auto On/Off: The BB1230 turns on at 13.3V and turns off
Profile Customization: Select your own charging profile on the front panel or build a custom charge program.
9 Preset Battery Voltage Options: Profiles for AGM, LiFePO4, Gel, Flooded and more.
4 Stage Battery Charging: Bulk, High Absorption, Low Absorption & Float / Maintenance
Equalization Mode: The BB1230 can also equalize your bow or start battery when required.
Very Simple to install: No complex wiring
Battery Temp Sensor: The BB1230 comes standard with a remote on-battery temp sensor.
Optional Remote Control: The BB1230 can be fitted with an optional remote control.