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Sterling Power Battery to Battery Charger – 12V to 12V – 70A – DC Powered Charger
Built to SAE J1171 ignition protection standards, the 2.5 kg Sterling Power BB121270 lithium marine battery charger supplies 70A regulated DC power to protect mid-size yacht battery banks underway.
- Single output delivers 70A current.
- Nine pre-programmed profiles handle Lithium.
- Variable fan cools power circuitry.
- Over-temperature sensors protect internal components.
- Drip-proof housing weighs 2.5 kg.
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Description
Mid-size yachts and expedition vehicles can use theSterling Power 12V to 12V 70A DC-to-DC Battery Charger, which transfers charging power from a 12V source system to a separate 12V battery bank. It provides up to 70 amps of stabilized output and supports listed LiFePO4, AGM, gel, flooded, and lead-acid battery types.
Nine pre-programmed profiles provide the listed battery-selection options. A digital interface and remote-ready capability support local and external monitoring, while the included remote sensor supports temperature compensation. IP21 drip-proof protection, SAE J1171 ignition protection, and thermostatic variable-speed fan cooling are listed.
Key Specifications of the Sterling Power 12V to 12V 70A DC-to-DC Battery Charger
- Seventy-amp output supports listed yacht and expedition-vehicle charging applications.
- The 12V input matches the listed source-system requirement.
- Stabilized 12V output charges the listed destination battery bank.
- Five battery chemistries are covered by the listed profiles.
- Nine profiles support the listed battery-specific charge selection.
- Over 95 percent efficiency limits conversion losses during charging.
- A digital interface provides the listed local charger information.
- Remote-ready capability supports the listed external monitoring option.
- The included sensor enables the listed temperature-compensation function.
- SAE J1171 ignition protection supports the listed marine rating.
Battery and Charging Compatibility
The Sterling Power 12V to 12V 70A charger supports listed LiFePO4, AGM, gel, flooded, and lead-acid battery types. It accepts charging power from one 12V DC source system and provides stabilized 12V output for a separate battery bank.
For an everyday example, this arrangement can be used when an existing charging source needs to recharge a different onboard battery bank. Confirm the source capacity, selected profile, and destination battery requirements before installation.
Installation and System Considerations
The charger accepts 12V DC input and provides stabilized 12V output at up to 70 amps. It has IP21 drip-proof protection, SAE J1171 ignition protection, a digital interface, remote-ready capability, an included remote sensor, and thermostatic variable-speed fan cooling. The unit measures 10.6 in. by 5.1 in. by 3.5 in. and weighs 5.5 lbs. Installation should follow the charger manual and the electrical requirements applicable to the vessel.
Warranty and Support
Warranty information is not included in the listed product data. Review the manufacturer documentation for product details, setup, and warranty coverage.
Before Ordering the Sterling Power 12V to 12V 70A DC-to-DC Battery Charger
Before ordering, confirm that both source and destination systems are 12V DC and that your battery chemistry is listed as supported. Review the 70-amp output, available profiles, remote-ready capability, sensor inclusion, IP21 rating, ignition protection, and installation space. You should confirm compatibility with your battery manufacturer and vessel electrical system before purchase.
Sterling B2B 12V to 12V/70A
| Brand | Sterling Power |
| SKU | BB121270 |
| Output Current | 70 Amps |
| Input Voltage | 12V DC |
| Output Voltage | 12V DC (Stabilized) |
| Battery Types | LiFePO4, AGM, Gel, Flooded, Lead-Acid |
| Algorithm | 9 Pre-programmed Profiles |
| Efficiency | >95% |
| IP Rating | IP21 (Drip-Proof) |
| Ignition Protected | Yes (SAE J1171) |
| Communication | Digital Interface / Remote Ready |
| Temp Compensation | Remote Sensor Included |
| Safety Protections | Over-Current, Over-Voltage, Over-Temp |
| Cooling | Thermostatic Variable Speed Fan |
| Dimensions | 270 x 130 x 90 mm (10.6x5.1x3.5") |
| Weight | 2.5 kg (5.5 lbs) |
| Certifications | CE, E-Marked, ABYC |
| Application | Mid-size Yachts, Expedition Vehicles |
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