BLUETTI Charger 2 Compatibility Alternator Charger

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This guide provides the most in-depth compatibility data for the BLUETTI Charger 2 DC-DC alternator charger, including performance with BLUETTI power stations and third‑party brands like Jackery, Anker, and EcoFlow. Use the compatibility calculator below to estimate the expected charging performance for your setup.

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For the full details of Charger 2 and a comparison to Charger 1, see my review:

BLUETTI Charger 2

BLUETTI Charger 2

Alternator Charger Review

BLUETTI Power Station Compatibility

The tables below outline compatibility, supported input limits, and cable requirements when paired with a BLUETTI power station.

1. CHG output increases to a combined 1,200W max while also having input via PV port. 2. Allows bidirectional power to specific BLUETTI power stations and expansion batteries. 3. BAT output increases to a combined 1,000W max while also having input via PV port.

Reverse charging and battery maintenance modes require a compatible BLUETTI power station or battery connected to the Charger 2 BAT port. These features are not supported while using the CHG port or any third‑party power station. For a full breakdown of how these modes work, see my detailed full review.

Third-Party Power Station Compatibility

Want to use a BLUETTI Charger 2 with your EcoFlow, Jackery, Anker, or other brand of solar generator? Use my compatibility calculator to verify support and see expected charging power. If your solar input port is already in use or needs an adapter, you'll find solutions in the sections below.

What are the specifications for your solar input port?

Need help finding these values? Show details

Enter all values to calculate compatibility and expected charge rate.

Charging Voltage
Custom
12.0V
Wait 10 seconds between charging voltage or power changes to protect your device.
Charging Power
0W

Actual output may be lower depending on your setup. Alternator size, battery voltage (12V vs 24V), vehicle battery health, and ambient temperature can all affect performance. Your power station’s minimum start‑up voltage may also limit the charging rate.

More details: My alternator charger guide covers alternator load, smart alternators, idling vs driving, and real‑world charging performance. It also compares chargers across all major brands so you can choose the setup that works best for you.

Alternator Chargers

Alternator Chargers

Compare All Models and Brands

Solar input already in use?

If you only have one solar input port and already use it for solar panels, you have two options:

  1. Use Charger 2 PV Port: This model includes a built‑in solar controller, allowing your solar panels and the alternator charger to operate at the same time through separate inputs. The solar input on Charger 2 accepts 13-50V⎓20A (600W max).
  2. Manual Swapping: Manually unplug your solar panels and plug in the alternator charger when driving.

Vehicle Compatibility

Charger 2 is compatible with standard 12V (default) passenger vehicles and 24V systems found in heavy-duty trucks or RV house batteries.

  • Automatic Voltage Detection: The charger features automatic voltage detection to determine when to start charging. While it has a preset threshold, it is highly recommended to manually configure the start-voltage value in the app to match your specific vehicle. This ensures charging begins when the engine starts and stops reliably when the engine is off, to prevent draining your starter battery.
  • Smart Alternator Support: By default Charger 2 relies on voltage detection. In vehicles with smart alternators, charging may temporarily pause during fuel-saving voltage drops and resume once the voltage climbs. To prevent this, you can install the optional D+ signal wire.

Cables and Accessories

  • DC Hub
    DC Hub (not Hub D1 for Apex 300)
    700W Total DC Power
    Ports: USB-C, USB-A, DC5521, Cigarette Lighter, and Anderson Port
    Price: $299

More accessories expected soon.

BLUETTI Alternator Charger Reviews

Explore all BLUETTI alternator charger models. Learn about differences, features, reverse charging, and more:

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Tyson Matanich
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