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EcoFlow 500W Alternator Charger

EcoFlow 500W Alternator Charger | 3-in-1 DC-DC
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$349.00
$349.00 - $349.00
$349.00
$199.00
$199.00 - $199.00
$199.00
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3-in-1 Charger, Maintainer & Jump Starter · 5× Faster Than a 12V Socket

EcoFlow 500W Alternator Charger

If you've ever tried recharging a power station from a cigarette-lighter socket, you know it barely keeps up with a day's use. This turns your vehicle's alternator into a proper 500W charger — roughly 1kWh in 2.1 hours, about five times faster than the 12V outlet you'd otherwise use.

It's three devices in one: a fast charger for your power station, a maintenance charger that keeps your vehicle's starter battery healthy, and an emergency jump starter. Installation is a clean three-step job in an SUV, pickup, van, or RV, and GaN electronics with undervoltage protection mean it only draws surplus alternator power — so it won't leave you unable to start the engine. Renewable Outdoors is an authorized EcoFlow dealer.

EcoFlow 500W Alternator Charger
2-Year Warranty
Lowest Price Guarantee
Authorized EcoFlow Dealer
Free Shipping
0% APR Financing
Expert Support: (303) 876-7654

Why an Alternator Charger

1kWh in 2.1 Hours

Five times faster than a 12V accessory socket, so a normal day's driving genuinely refills your power station rather than trickling into it.

Three Devices in One

A 500W fast charger, a starter-battery maintainer, and an emergency jump starter — one box instead of three.

Won't Strand You

Undervoltage protection means it only takes surplus alternator power, so it can't flatten the battery you need to start the engine.

12V and 24V Vehicles

Accepts 11–31V input at up to 45A, covering cars, pickups, vans, RVs, and trucks — including hybrids and range-extended vehicles.

Works With Most Brands

The included XT60 cable connects to every EcoFlow power station and most third-party units, so it isn't locked to one ecosystem.

GaN Electronics

Gallium nitride design keeps it compact and cool, with reverse-polarity, overcurrent, short-circuit, and over/undervoltage protection built in.

The Three Operating Modes

Mode Direction Power What It's For
Charging Vehicle → power station 500W max (360W in 24V mode) The main job — refilling your power station from the alternator as you drive
Battery Maintenance Power station → vehicle 100W max Trickle-charging a starter battery during long periods parked up, so it doesn't go flat
Reverse Charging Power station → vehicle 500W max Recovering a dead starter battery, or jump starting the vehicle from your power station

Important on cables: the included XT60 cable handles charging mode, but reverse charging and battery maintenance with EcoFlow DELTA series power stations require the optional XT150 cable, which is sold separately. DELTA Pro owners also need a DELTA Pro to Smart Generator Adapter. If the reverse and maintenance modes are part of why you're buying this, call us at (303) 876-7654 first so we can make sure you get the right cable with it — that's the single most common mistake on this product.

What's Included

EcoFlow 500W Alternator Charger

In the Box

  • EcoFlow 500W Alternator Charger
  • XT60 charging cable
  • Installation hardware and user manual

The XT150 cable needed for reverse charging and battery maintenance with DELTA series power stations is sold separately, as is the DELTA Pro to Smart Generator Adapter for DELTA Pro compatibility.

500W Alternator Charger Specifications

Charging Speed Approx. 1kWh in 2.1 hours (about 5× a 12V accessory socket)
Input 12V/24V systems, 11–31V DC, 45A max
Charging Output 40–60V DC, 500W max; 24V DC, 360W max
Battery Maintenance Mode Input 40–60V DC 3A max; output 13.8V/27.6V DC, 100W max
Reverse Charging Mode Input 40–60V DC 13.2A max; output 13.8V/27.6V DC, 500W max
Fuse Rated Current 125A
Functions Fast charging, starter-battery maintenance, reverse charging, jump starting
Technology Gallium nitride (GaN)
Protections Reverse polarity, overcurrent, short circuit, overvoltage, undervoltage
Included Cable XT60 (XT150 required separately for reverse charging and maintenance with DELTA series)
Compatibility All EcoFlow power stations and most third-party units via XT60
Vehicle Types SUVs, pickups, vans, RVs; hybrid and range-extended vehicles supported
Connectivity Wi-Fi (2412–2472MHz, 18.22dBm max) and Bluetooth (2402–2480MHz, 7.89dBm max)
Operating Temperature −4°F to 140°F (−20°C to 60°C)
Dimensions 9.5" × 7.6" × 1.4" (242 × 194 × 35mm)
Weight ~3.53 lbs (1.6 kg)
SKU EFAlternatorCharger500W-N
Warranty 2-Year Warranty

This is an under-hood or in-cabin device: keep it protected from direct water and spray rather than mounting it exposed.

Documentation & Downloads

500W Alternator Charger Manuals (EcoFlow)

Worth reading before you install — the wiring routing and fuse placement matter, and the manual covers the three-step installation in detail.

2-Year Warranty

Backed by EcoFlow's 2-year manufacturer warranty on this accessory.

Lowest Price Guarantee

Found it cheaper elsewhere? Call us at (303) 876-7654 before you buy.

Authorized EcoFlow Dealer

Genuine EcoFlow hardware, and we'll make sure you get the right cable for the modes you need.

EcoFlow 500W Alternator Charger: Frequently Asked Questions

Will this drain my car battery?
No. Undervoltage protection means it only draws surplus power from the alternator, and it stops before the starter battery drops to a level that would leave you unable to start the engine. That's the main safety difference between this and wiring a charger directly to the battery.
Do I need the XT150 cable?
Only for some modes. The included XT60 cable handles the main job — charging your power station from the alternator. Reverse charging and battery maintenance with EcoFlow DELTA series power stations require the optional XT150 cable, and DELTA Pro owners also need a DELTA Pro to Smart Generator Adapter. Call us at (303) 876-7654 and tell us which power station you have, and we'll make sure you order the right combination.
How much faster is it than a 12V socket?
About five times. It puts roughly 1kWh into a power station in 2.1 hours at up to 500W, where a cigarette-lighter socket is typically limited to around 100W. In practice that's the difference between a day's driving actually refilling your battery and barely offsetting what you used.
Will it work with a non-EcoFlow power station?
Yes, for charging. The XT60 connection works with all EcoFlow power stations and most third-party units. The reverse charging and battery maintenance modes are designed around EcoFlow's DELTA series, so those functions may not be available with another brand.
Can I install it myself?
EcoFlow designs it as a three-step installation, and it's within reach of anyone comfortable working on vehicle wiring. That said, it carries up to 45A and uses a 125A fuse, so cable routing, fuse placement, and secure connections genuinely matter. If you're not confident, have an auto electrician fit it — it's a short job for them.
Does it work on a 24V truck or RV?
Yes. It accepts 11–31V input, covering both 12V and 24V systems. Note that output drops to 360W in 24V mode rather than the full 500W.
Can it really jump start my vehicle?
Yes — in reverse charging mode it can deliver up to 500W back into the vehicle's electrical system to recover a dead starter battery or assist a jump start. Remember that this mode needs the XT150 cable with DELTA series power stations.
Should I get this or the 800W version?
The 800W alternator charger recharges faster and suits larger power stations or people who spend a lot of time driving between stops. This 500W unit is the better value for most vehicles and mid-size power stations. Not sure? Call us at (303) 876-7654 with your vehicle and power station and we'll tell you which one is worth it.
Can I monitor it from my phone?
Yes. It has Wi-Fi and Bluetooth built in, so it reports through the EcoFlow app alongside the rest of your gear.
Do you offer financing or price matching?
Yes. We offer 0% APR financing options through Affirm at checkout, and every purchase is backed by our Lowest Price Guarantee — if you find a better price elsewhere, call us at (303) 876-7654 before you order.
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