Sterling Power Battery to Battery Charger 12V input
Sterling Power 12/24 to 24 Volt Saturn Battery to Battery Charger | 58A Output | Model BB1224120
• Buck Boost design for very high efficiency (92-94%)
• Bi-directional charging
• Simple installation and setup
• Current limiting
• Lithium safe
• Smart Alternator/Euro 6+ compatible
• Ignition feed or Vibration Sense modes
• 6 preset battery types
• 6 self recovering protections
• Low temperature trip for Lithium Ion batteries
Reverse charge / Bidirectional charging / Jump start assist
The Saturn series are Sterling's latest, most efficient, and most feature-rich models in their long line of battery-to-battery chargers. They also feature some of the highest capacities available in a single unit.
This model features bi-directional charging, designed to keep the start battery fully charged when the house bank has solar or other input. The reverse charging can be up to one-third of the unit's forward-charging rating. This is great for long-term storage, as well as when there are house loads running off the start battery. Reverse charging is triggered when the house battery is on charge and above the start battery voltage, and can be disabled if desired. It can also be manually triggered in Jump Start Assist mode to provide 20 minutes of charging in the event the start battery has been drained.
Automatic operation is configurable and can be triggered by input voltage, ignition feed, or vibration.
An optional remote displays operational status, and allows for setting custom profiles and for limiting output to 65% or 85% of max capacity.
We have tested these all day at full capacity, and found that they run very cool due to their exceptional efficiency.
This 120A charger accepts up to 2AWG wire. Please see our wire size calculator for the correct wire size for your installation.
| Specification | Details |
|---|---|
| Model | BB1224120 |
| Input Voltage Range | 9V-16V | 18V-32V (Autodetect) |
| Continuous Rated Output Power | ~58A at 28.4V |
| Continuous Rated Input Current | ~120A at 12V | ~60A at 24V |
| Reverse current rating | ~50A at 13.4V | ~25A at 26.8V |
| Quiescent Current | 5mA |
| Efficiency Rating | 92-94% |
| Self-Recovering Protections |
|
| Operational Temperature | -20°C to 60°C |
| Approval | CE, UKCA, E-Marking: 24*10R06/01*3789*00 |
| Cooling Method | Thermostatically Controlled Variable Low-Speed Fan |
| Dimensions | 270mm x 130mm x 73mm |
| Weight | 1.8kg 4 lb |
Click below for the full installation manual
