---
product_id: 727072621
title: "VEVOR 12V 40A DC to DC Battery Charger, 500W, On-Board Battery Charger for Lead-Acid, Lithium, AGM, Gel, and Flooded Batteries, Smart Multi-Stage Charging, for RVs, Commercial Vehicles, Boats, Yachts"
brand: "vevor"
price: "$235.83"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/727072621-vevor-12v-40a-dc-to-dc-battery-charger-500w-on
store_origin: US
region: United States of America
---

# Smart multi-stage charging 12V 40A high-power output Comprehensive multi-protection VEVOR 12V 40A DC to DC Battery Charger, 500W, On-Board Battery Charger for Lead-Acid, Lithium, AGM, Gel, and Flooded Batteries, Smart Multi-Stage Charging, for RVs, Commercial Vehicles, Boats, Yachts

**Brand:** vevor
**Price:** $235.83
**Availability:** ✅ In Stock

## Summary

> 🔌 Charge smarter, drive farther — never miss a beat on the road!

## Quick Answers

- **What is this?** VEVOR 12V 40A DC to DC Battery Charger, 500W, On-Board Battery Charger for Lead-Acid, Lithium, AGM, Gel, and Flooded Batteries, Smart Multi-Stage Charging, for RVs, Commercial Vehicles, Boats, Yachts by vevor
- **How much does it cost?** $235.83 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/727072621-vevor-12v-40a-dc-to-dc-battery-charger-500w-on)

## Best For

- vevor enthusiasts

## Why This Product

- Trusted vevor brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Revive & Ready:** Lithium battery activation feature wakes up deeply discharged batteries, ensuring you’re never left powerless.
- • **Built-In Safety Shield:** Advanced protections guard against over/under voltage, reverse polarity, and overheating for worry-free charging.
- • **Power Up with Precision:** Delivers a robust 40A current to charge your batteries faster and smarter.
- • **Sleek & Space-Savvy Design:** Compact aluminum alloy body with pre-drilled holes makes installation effortless anywhere on your vehicle.
- • **Universal Battery Compatibility:** Seamlessly supports lead-acid, lithium, AGM, gel, and flooded batteries for ultimate versatility.

## Overview

The VEVOR 12V 40A DC to DC Battery Charger is a versatile 500W on-board charger designed for RVs, commercial vehicles, boats, and yachts. Compatible with multiple battery types including lead-acid and lithium, it features smart multi-stage charging and comprehensive safety protections. Its compact aluminum design ensures easy installation, while the lithium activation function revives deeply discharged batteries, keeping your power supply reliable and ready.

## Description

Full description not available

## Features

- Versatile Battery Types: This 12V 40A DC to DC charger is compatible with lead-acid and lithium batteries, and works with various alternator types. It is ideal for charging standby batteries in RVs, trucks, and boats
- Multiple Protections: Built-in over & under voltage, high temperature, reverse polarity protection ensure this on-board battery charger runs smoothly and securely. The isolated input/output keeps your vehicle's electrical system from interference
- Smart Multi-Stage Charging: This battery charger features multi-stage charging modes for LifePo4 (2-stage) and lead-acid batteries (4-stage: bulk, absorb, float). It ensures an optimal process to fully charge your battery and extend its lifespan
- Compact and Easy to Install: The sleek aluminum alloy design comes with pre-drilled mounting holes, allowing you to install this DC to DC charger anywhere with ease
- Wake Up Your Batteries: With its lithium battery activation feature, this DC to DC battery charger can quickly bring idle or deeply discharged batteries back to life, making them always ready for use when you need

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | VEVOR |
| Brand | VEVOR |
| Item Weight | 3.42 pounds |
| Product Dimensions | 8.07 x 5.7 x 3.3 inches |
| Item model number | Chargeur de Batterie CC à CC 500 W |
| Manufacturer Part Number | Chargeur de Batterie CC à CC 500 W |
| Amperage | 40 Amps |

## Product Details

- **Brand:** VEVOR
- **Color:** black
- **Product Dimensions:** 8.07"D x 5.7"W x 3.3"H
- **Item Weight:** 3.42 Pounds
- **Output Voltage:** 12 Volts (DC)

## Images

![VEVOR 12V 40A DC to DC Battery Charger, 500W, On-Board Battery Charger for Lead-Acid, Lithium, AGM, Gel, and Flooded Batteries, Smart Multi-Stage Charging, for RVs, Commercial Vehicles, Boats, Yachts - Image 1](https://m.media-amazon.com/images/I/71BfU3tCofL.jpg)
![VEVOR 12V 40A DC to DC Battery Charger, 500W, On-Board Battery Charger for Lead-Acid, Lithium, AGM, Gel, and Flooded Batteries, Smart Multi-Stage Charging, for RVs, Commercial Vehicles, Boats, Yachts - Image 2](https://m.media-amazon.com/images/I/61YO-ll3MDL.jpg)
![VEVOR 12V 40A DC to DC Battery Charger, 500W, On-Board Battery Charger for Lead-Acid, Lithium, AGM, Gel, and Flooded Batteries, Smart Multi-Stage Charging, for RVs, Commercial Vehicles, Boats, Yachts - Image 3](https://m.media-amazon.com/images/I/61XPCTjySRL.jpg)
![VEVOR 12V 40A DC to DC Battery Charger, 500W, On-Board Battery Charger for Lead-Acid, Lithium, AGM, Gel, and Flooded Batteries, Smart Multi-Stage Charging, for RVs, Commercial Vehicles, Boats, Yachts - Image 4](https://m.media-amazon.com/images/I/61d8c6-AHoL.jpg)
![VEVOR 12V 40A DC to DC Battery Charger, 500W, On-Board Battery Charger for Lead-Acid, Lithium, AGM, Gel, and Flooded Batteries, Smart Multi-Stage Charging, for RVs, Commercial Vehicles, Boats, Yachts - Image 5](https://m.media-amazon.com/images/I/71IQvFP4IpL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It delivers as promised
*by H***E on June 28, 2025*

Why did you pick this product vs others?:First time use. Bought this to test my new lithium battery charging system. Didn’t want to spend a whole lot of money while testing.The goodDischarge my battery to 50%. Installed with good wire and with my fluke at pro God 30.4 A charge bulk.. then at about 13.5 V charge dropped to 15 A. I have it set on lithium charge at a max voltage of 14.4 V.The badThe hook up terminals are on the small side. Fix was to buy a cheap pair of jumper cables from Walmart and I cut the copper connections to fit the small screws on the input/output terminals.I I now have the promise charge current output. It does work as promised, but I have low time usage. Hopefully it will last for a long time. The fans are somewhat noisy, but no more noisier than a box fan, I would say probably 55 DB’s maybe 60. My gaming laptop is noisier.Value for money:since I was using this as a test bed, I did not want to get excessive in price. My whole set up including a 45 amp converter with chargers set up cost about $350 less than 400 for converter separate charger and lithium battery. The converter and charger are from the same company. surprise as how well it actually turned out!My settings converter set at 13.2 V 45 A. DC to DC charger set on a lithium with a max of 30 A.150 amp cheap jumper cable interconnects both. At 30 amp bulk charge output was 30.4 A with an input of 40 amp. Float charge was 15.5 A with an input of 20.5 A. longevity has yet to be tested.

### ⭐ Worked for literally 2 minutes.
*by S***S on August 17, 2025*

I received a unit that worked for approximately 2 minutes. I tested all my connections with a multimeter and found them all to be good and within operating tolerances. I even checked the internal fuses and found them intact. The unit itself was just a bad one.I was going to buy the same one in case I received a one-in-a-million mistake, but due to this having only 18 reviews and not all of them positive, I just went with another brand, though it was more expensive.

### ⭐⭐⭐⭐⭐ Works great
*by D***. on August 27, 2025*

Easy install, seems to do the job well. Made for a much easier trip when facing long travel days that otherwise would be draining the camper house battery bank.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-22*