Product Description
BLUETTI B300K Expansion Battery with Charger 2 for Road Trips and Backup Power
Core Points
- High-Capacity B300K Battery – Reliable large energy storage for extended use
- Up to 2400W Hybrid Charging Input – Combine alternator, solar, and battery input
- 800W Driving Charging Power – Recharge while driving, far faster than car outlets
- True Plug-and-Play System – No vehicle modification required
- Dual Input (Car + Solar) – Charge while driving and under sunlight simultaneously
- Smart Power Switching – Automatically selects optimal energy source
- Reverse Charging Capability – Supports vehicle battery maintenance
- Perfect for RV & Van Life – Reliable off-grid power for long trips
- APP Smart Monitoring – Real-time control of power flow and charging status
- Stable Power Anywhere – Ideal for camping, overlanding, and mobile work
🚐 High-Capacity Power for Long-Distance Travel
The B300K battery provides large-capacity energy storage, making it ideal for extended RV trips and van life. Power lights, portable fridges, laptops, and cooking devices for hours without worrying about running out of energy during long journeys.
⚡ Fast Charging While Driving
With Charger 2 delivering up to 800W driving charge and supporting hybrid input up to 2400W, your battery recharges efficiently while on the road. Compared to traditional car outlets, it significantly reduces charging time and maximizes energy availability.
☀️ Dual Charging with Solar and Alternator
Charger 2 supports simultaneous solar and vehicle charging, allowing up to 1400W combined input or even higher with battery integration. This ensures continuous power generation whether you're driving under sunlight or parked outdoors.
🔄 Smart Energy Management System
The system automatically switches between vehicle power, solar input, and battery supply. Combined with app control, users can monitor voltage, current, and power flow in real time, ensuring optimal performance and energy efficiency at all times.
🌍 Complete Mobile Power Solution
Designed for RV travel, overlanding, and off-grid living, B300K + Charger 2 delivers a complete mobile energy system. It provides clean, stable, and reliable power anywhere, replacing noisy generators and enabling true energy independence on the road.
FAQ
Q1: Can I use the B300K adapter, PV charger, or car charger?
A:
No, the B300K can only be charged via the main unit. If no main unit is connected, it can only be charged via Charger 2 for PV or battery charging.
Q2: Can the B300K be placed upside down?
A:
It is not recommended.
1. Excessive structural stress and prolonged hanging of the battery pack may cause fatigue and reduce the strength of structural components.
Q3: Why do I need Charger 2? How is it different from the cigarette lighter port?
A:
Because it charges much faster than a standard car port, which only provides 80–90 W at 12 V, or about 200 W at 24 V. The Charger 2 can pull up to 1,200 W from the alternator and solar, even exceeding the Charger 1's 560 W.
2. Inverting the cells will affect their performance.
