Overview
The EcoFlow Alternator Charger Plus 1000 is a 1000W in-vehicle DC-DC charger that lets you top up a portable power station while you drive, up to 10x faster than a standard car cigarette socket. With 700W of alternator input and an additional 300W solar input (when paired with the optional solar input cable), it adds 1kWh of charge in roughly 1 hour, making it ideal for motorhomes, 4WDs, freedom campers, and trade vehicles travelling between sites.
It supports the EcoFlow DELTA 3 Plus and EcoFlow DELTA 3 Max Plus directly via the included XT150 output cable, and also supports the EcoFlow DELTA Pro 3 with the addition of the EcoFlow Smart Generator Adapter. Reverse charging protects the starter battery, and the EcoFlow app gives you real-time control over charging modes, starter battery status, and power station charge level. Plug-and-play installation, IP4X dust protection, and fanless natural cooling make it a reliable long-term fit for NZ road trips and worksite power.
Key Features:
- Rated Output: 1000W max
- Alternator Input: 12V/24V (11-31V), 75A max, 700W
- Solar Input: 11-60V, 15A max, 300W (requires optional solar input cable)
- Output (Charge Mode): 40-60V⎓, 20A Max, 1000W Max (Power Station)
- Reverse Charge: Input 40-60V, 20A max (Power Station) | Output 13.8V/27.6V, 75A max (Vehicle)
- Battery Maintenance: Input 40-60V, 3A max (Power Station) | Output 13.8V/27.6V, 100W max (Vehicle)
- Charging Speed: 1kWh in approx. 1 hour (up to 10x faster than a cigarette socket)
- Charging Modes: 3 (incl. reverse charging via power station or solar)
- App Control: EcoFlow app
- Protection Rating: IP4X dust protection
- Protections: Reverse polarity, overcurrent, short circuit, over/undervoltage
- Fuse Rating: 125A
- Operating Temperature: -10°C to 45°C
- Storage Temperature: -30°C to 70°C
- Weight: 1.7kg
- Dimensions: 276 x 187 x 38mm
What's in the Box?
- 1 x EcoFlow Alternator Charger Plus 1000
- 1 x XT150 Output Cable
- 1 x Alternator Input Cable Set
- 1 x Mounting Hardware
- 1 x User Manual / Warranty Card
- Warranty: 2-year warranty
Note: The 300W solar input function requires the EcoFlow Alternator Charger Plus 1000 Solar Input Cable (12AWG, 5m), sold separately. To use this charger with the EcoFlow DELTA Pro 3 or original DELTA Pro, the EcoFlow Smart Generator Adapter is also required.

Traditional Dual Battery vs EcoFlow Portable Dual Battery System
A traditional dual battery system requires permanent installation, dedicated wiring, and a fixed second battery taking up space in the vehicle. The EcoFlow Alternator Charger Plus 1000 paired with a portable power station gives you the same drive-time charging benefits, but with the flexibility to take the power station out of the vehicle and use it at the campsite, jobsite, or bach.

Faster - Top Up 1kWh in Just 1 Hour
Charge as you drive, around 10x faster than a traditional 12V cigarette socket. Power up 1kWh in just 1 hour and arrive at the campsite, jobsite, or bach with a fully charged portable power station, ready to run appliances and tools straight away.

Alternator + Solar Flexible Dual Charging
The Alternator Charger Plus 1000 offers more flexible charging options so you can keep topping up even while parked. By connecting solar directly to the alternator charger's solar input port, you free up the XT60i solar input on your portable power station. This lets you run the alternator charger and solar panels at the same time, getting up to 1000W of combined input.
The 300W solar input requires the EcoFlow Alternator Charger Plus 1000 Solar Input Cable (sold separately).

Reverse Charging for Car Battery Protection
With three charging modes, the Alternator Charger Plus 1000 supports reverse charging back to the starter battery from your portable power station or solar panels. This helps maintain vehicle battery health and prevents draining during long stops or storage.
Reverse charging requires an output cable with a communication function (XT150 or 4+8 supported, XT60 not supported). The Alternator Charger Plus 1000 includes one XT150 output cable in the box.



Safer - Enhanced Alternator and Starter Battery Protection
The Alternator Charger Plus 1000 harnesses surplus alternator power without disrupting normal vehicle operation or adding extra electrical load while driving. Built-in safeguards keep both your alternator and starter battery protected from over-draw, helping extend the life of your vehicle's electrical system.

Five Layers of Protection with Advanced Quality Standards
Designed for outdoor and off-road conditions, the Alternator Charger features an IP4X dust protection rating to guard against particles commonly found in vehicle cabins and engine bays. The fanless natural cooling design ensures a sealed structure that resists dust buildup, reducing the risk of short circuits and supporting long-term, reliable performance in harsh environments. Five layers of protection cover reverse polarity, overcurrent, short circuit, and over/undervoltage.

Simpler - Smart Control via App or Infotainment
Manage charging modes anytime through the EcoFlow app on your phone, with monitoring of starter battery voltage, power station state of charge, and remaining charge time at a glance. Car infotainment connectivity with Apple CarPlay and Android Auto is also supported, letting you view charging status on your vehicle's infotainment screen.
CarPlay and Android Auto support are subject to vehicle and head unit compatibility. Check your vehicle's infotainment system before relying on this feature.


Quick 10-Minute Installation
Follow EcoFlow's step-by-step installation guide and get your Alternator Charger Plus 1000 set up in under 10 minutes. Watch the video below for a full walkthrough, or follow the included user manual.
How to Choose Your Alternator Charger
EcoFlow offers three alternator chargers across the range. Use the comparison below to find the right one for your power station, vehicle, and travel style.

Pairs Well with EcoFlow DELTA Series Power Stations
The Alternator Charger Plus 1000 is built for fast in-vehicle charging of EcoFlow's DELTA Series power stations via the XT150 output. It works directly with the EcoFlow DELTA 3 Plus (1024Wh, full charge in approx. 1 hour) and the EcoFlow DELTA 3 Max Plus (2048Wh, full charge in approx. 2 hours). The EcoFlow DELTA Pro 3 (4096Wh, full charge in approx. 4 hours) is also supported, with the addition of the EcoFlow Smart Generator Adapter, which connects to the Extra Battery Port. For motorhomes and 4WDs running larger DELTA series power stations, this is the fastest in-vehicle charging option in the EcoFlow range.
Frequently Asked Questions
Will the Alternator Charger Plus 1000 work with my vehicle?
It works with any 12V or 24V vehicle with an alternator output that supports its draw, including most utes, 4WDs, motorhomes, and vans. Check your vehicle's alternator rating in the owner's manual and ensure it can sustain the charger's load alongside the vehicle's other electrical demands. If unsure, contact us with your vehicle make and model and we'll help confirm.
Does it work with the DELTA Pro 3 or the older DELTA Pro?
Yes, both are supported with the addition of the EcoFlow Smart Generator Adapter, which plugs into the Extra Battery Port on the rear of the unit and converts it to accept the alternator charger's XT150 output. Without this adapter, neither DELTA Pro nor DELTA Pro 3 will accept the alternator charger.
Can I use it with a third-party (non-EcoFlow) power station?
Yes, but you'll need a separate XT60 output cable (sold separately) instead of the included XT150 cable. Reverse charging and battery maintenance modes are not available with third-party units, and charging speed will be limited by the third-party power station's solar input rating.
Will it run my fridge or appliances directly?
No. The Alternator Charger Plus 1000 charges your portable power station only; it doesn't power appliances directly. Connect appliances such as a fridge, kettle, or laptop to the AC or DC outlets on your power station, and use the alternator charger to keep that power station topped up while driving.
Can I install it myself, or do I need a professional?
The Alternator Charger Plus 1000 is designed for plug-and-play installation and auto-starts with the vehicle ignition, so many owners install it themselves, particularly in motorhomes and 4WDs with accessible battery and wiring.