EcoFlow 800W Alternator Charger
Overview
The EcoFlow 800W Alternator Charger turns your vehicle's drive time into charging time, recharging an EcoFlow portable power station up to 8 times faster than a standard 12V cigarette socket. Top up around 1kWh of energy in just 1.3 hours of driving, so you arrive at camp, the bach, or the worksite with your power station ready to use.
Unlike the 500W model, the 800W Alternator Charger ships with the XT150 output cable as standard, unlocking full 3-in-1 functionality out of the box: charge your power station while driving, reverse-charge your starter or RV house battery, and keep your battery topped up with Battery Maintenance Mode. Built for SUVs, utes, vans, motorhomes, and 4WDs, it uses GaN (Gallium Nitride) technology with multiple safety protections, including undervoltage cut-off to protect your starter battery.
Key Features:
- Power Output: 800W max
- Charging Speed: 1kWh in approx. 1.3 hours
- Vs. Cigarette Socket: Up to 8x faster
- 3-in-1 Function: Charge Mode, Reverse Charge Mode, Battery Maintenance Mode
- Vehicle Compatibility: 12V and 24V systems (SUVs, utes, vans, motorhomes, 4WDs)
- Connection: XT150 output cable (1m, included)
- App Control: EcoFlow App via Wi-Fi and Bluetooth
- Technology: GaN (Gallium Nitride) for high efficiency and low heat
- Safety: Undervoltage, overvoltage, overcurrent, short-circuit, and reverse-polarity protection
- Weight: Approx. 2.3kg
- Dimensions: 242 x 194 x 35mm
- Operating Temperature: -20°C to 60°C
What's in the Box?
- 1 x EcoFlow 800W Alternator Charger
- 1 x Input Cable (5m)
- 1 x XT150 Output Cable (1m)
- 1 x Fuse Cable (125A)
- 1 x Installation Board
- 3 x M5 Screws
- 2 x ST5.5 Self-Tapping Screws
- 2 x M6 Bolts and 2 x M6 Nuts
- 1 x Cable Puller
- 1 x Quick Start Guide, Safety Instructions and Warranty Card
- Warranty: 2-year warranty
Note: To connect the 800W Alternator Charger to a DELTA Pro, DELTA Pro 3, or DELTA 3 Max Plus, you will need either the Smart Generator Adapter or the 2m Custom Fit Output Cable. See FAQ below for details.
Top Up 1kWh in Just 1.3 Hours of Driving
Plug in, drive, and arrive charged. The 800W Alternator Charger taps into the excess energy your alternator already produces while you drive, then channels it through an efficient onboard DC-DC boost converter to recharge your EcoFlow power station up to 8 times faster than a traditional cigarette outlet. For NZ road trips, weekend trips to the bach, hunting and fishing missions, or short commutes between worksites, this means you stop wasting drive time and start using it.
Triple the Value with a 3-in-1 Design
The 800W ships with the XT150 output cable as standard, unlocking three modes out of the box. Charge Mode uses your alternator's surplus power to recharge your EcoFlow power station while you drive. Reverse Charge Mode flips the flow, using your power station to recharge a flat starter or RV house battery, including activating a depleted battery without needing a jump pack. Battery Maintenance Mode keeps your starter battery topped up at an optimal level over long periods of vehicle storage, helping extend battery life.
Extend Your RV House Battery Runtime
The 800W Alternator Charger acts as a supplementary power source for motorhomes, campervans, and caravans. It adapts to both 12V and 24V RV house batteries, connecting to your EcoFlow portable power station to expand energy storage capacity by up to 2kWh when paired with a DELTA 2 Max. This means longer off-grid trips, more comfort at remote sites, and less reliance on mains hookups.
Safe and Reliable on Every Drive
GaN (Gallium Nitride) technology delivers high efficiency with low heat, making sustained 800W charging stable even on long drives. Built-in safety protections include undervoltage cut-off (which prevents your starter battery from being drained), overvoltage, overcurrent, short-circuit, and reverse-polarity protection. The 125A fuse and integral overload protection add another layer of safety. The unit only draws power when your engine is running, so it cannot accidentally flatten your vehicle's battery overnight.
Compatible with EcoFlow Portable Power Stations
The 800W Alternator Charger connects to EcoFlow power stations and extra batteries via the XT150 port. Compatible with most DELTA Series power stations. For DELTA Pro, DELTA Pro 3, and DELTA 3 Max Plus, you'll need either the EcoFlow Smart Generator Adapter or the 2m Custom Fit Output Cable to connect properly.
Choose the Right Alternator Charger
The 800W sits in the middle of EcoFlow's alternator charger range, offering significantly faster charging than the 500W and full 3-in-1 capability out of the box. If you need a smaller, more affordable option for occasional top-ups, the EcoFlow 500W Alternator Charger is a solid choice. For larger setups or those wanting integrated solar input as well, the EcoFlow Alternator Charger Plus 1000 offers 700W of alternator charging plus 300W of solar input in a single unit.
Clean Install with Everything Included
The 800W Alternator Charger comes with the cables, fuse, mounting hardware, and cable puller needed for installation. The 5-step process involves connecting the fuse cable to your vehicle battery, routing the input cable to the charger, grounding the negative terminal, threading the cable through the vehicle body, and plugging in the output cable to your power station. The charger can be mounted to the vehicle body or to a board using the included self-tapping screws or M6 bolts. EcoFlow strongly recommends a qualified auto-electrician for permanent installs.
Important Installation Notice
Alternator output capacity varies by vehicle. Please check your vehicle or alternator manual to confirm it can support the charger's maximum 800W draw before installation. For permanent installation in vehicles, motorhomes, and caravans, we recommend using a qualified NZ auto-electrician to ensure safe, compliant wiring.
Frequently Asked Questions
How fast does the 800W Alternator Charger recharge my EcoFlow power station?
It can top up around 1kWh of energy in approximately 1.3 hours of driving, which is up to 8 times faster than a standard 12V cigarette socket. Actual speeds depend on your vehicle's alternator output and the specific power station you are charging.
What's the difference between the 500W and 800W Alternator Chargers?
The 800W charges roughly 60% faster than the 500W model (1kWh in 1.3 hours vs 2.1 hours) and ships with the XT150 cable as standard, unlocking full 3-in-1 functionality out of the box (charging, reverse charging, and battery maintenance). The 500W only ships with the XT60 cable, so reverse charging and maintenance modes require the optional XT150 cable to be purchased separately.
Can the 800W work with my EcoFlow DELTA Pro, DELTA Pro 3, or DELTA 3 Max Plus?
Yes, but these power stations use the XT150 extra battery port differently. You'll need either the EcoFlow Smart Generator Adapter or the 2m Custom Fit Output Cable to connect the charger to your power station. Both options work, so choose based on whether you also need to use the Smart Generator with your unit.
Does the 800W Alternator Charger include reverse charging and battery maintenance?
Yes. Unlike the 500W model, the 800W ships with the XT150 cable as standard, so all three modes are available out of the box: Charge Mode (alternator charges your power station), Reverse Charge Mode (power station charges your starter or RV battery, up to 800W), and Battery Maintenance Mode (keeps a parked vehicle's battery healthy at up to 100W).
Can I install the 800W Alternator Charger myself, or do I need an auto-electrician?
The unit ships with the cables, fuse, hardware, and cable puller needed for installation, and EcoFlow describes it as a 5-step process. A confident DIYer with vehicle wiring experience can install it. For permanent installs in motorhomes, caravans, or work vehicles, we strongly recommend a qualified NZ auto-electrician to ensure safe and compliant wiring, especially for the high-current connections to the starter battery.