---
product_id: 684314219
title: "Renogy DC to DC Charger 12V 20A - Multi-Stage Charger for LiFePO4, AGM, Gel, Flooded Batteries | Car, RV, Marine & Boat Battery Charger with Bluetooth Compatibility"
brand: "renogy"
price: "฿16698"
currency: THB
in_stock: true
reviews_count: 9
category: "Renogy"
url: https://www.desertcart.co.th/products/684314219-renogy-dc-to-dc-charger-12v-20a-multi-stage-charger
store_origin: TH
region: Thailand
---

# 20A multi-stage charging Bluetooth remote monitoring LiFePO4 & multi-battery compatibility Renogy DC to DC Charger 12V 20A - Multi-Stage Charger for LiFePO4, AGM, Gel, Flooded Batteries | Car, RV, Marine & Boat Battery Charger with Bluetooth Compatibility

**Brand:** renogy
**Price:** ฿16698
**Availability:** ✅ In Stock

## Summary

> 🔌 Power up smarter, not harder — stay charged, stay ahead.

## Quick Answers

- **What is this?** Renogy DC to DC Charger 12V 20A - Multi-Stage Charger for LiFePO4, AGM, Gel, Flooded Batteries | Car, RV, Marine & Boat Battery Charger with Bluetooth Compatibility by renogy
- **How much does it cost?** ฿16698 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/684314219-renogy-dc-to-dc-charger-12v-20a-multi-stage-charger)

## Best For

- renogy enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Safe Design:** Wall-mountable with internal short-circuit prevention for worry-free installation.
- • **Advanced Multi-Protection:** Built-in safeguards against overload, short circuit, over-temp, and voltage spikes.
- • **Smart Alternator Detection:** Charges only when your engine runs, protecting your starter battery from drain.
- • **Intelligent LiFePO4 Activation:** One-touch control optimizes lithium battery performance effortlessly.
- • **Bluetooth Control & Data Tracking:** Remotely monitor and adjust settings with up to 365 days of charging history.

## Overview

The Renogy DC to DC Charger 12V 20A is a versatile, multi-stage battery charger designed for LiFePO4, AGM, Gel, and Flooded batteries. Ideal for cars, RVs, boats, and marine use, it features smart alternator detection, compact wall-mount design, and comprehensive electronic protections. Bluetooth compatibility enables remote monitoring and control, making it a top choice for professionals seeking reliable, efficient, and safe battery charging on the go.

## Description

desertcart.com: Renogy DC to DC Charger 12V 20A - Multi-Stage Charger for LiFePO4, AGM, Gel, Flooded Batteries | Car, RV, Marine & Boat Battery Charger with Bluetooth Compatibility

Review: Works great, some of the interface is a little funky - I've used this almost a year now and pretty happy. I use the custom settings to charge a 400 AH lithium battery bank. Pros: - Easy to install - Seems to work reliably - Runs cool - Connections are Anderson PP75 “Powerpoles” which I liked and are way better than typical screw terminals Cons: - The software, as typical for Renogy, makes little sense. The Bluetooth app screens are somewhat nonsensical and frustrating - but - it does work for the basics, at least on my iPhone - Big giant external rotating selection switch makes me afraid I will nudge it by accident. I may pour epoxy on it. - Missing some important settings - Missing a way to disable reverse charging for some circumstances (so I just thrown the breaker I installed) - Big and Heavy Overall I have to give it 5 stars. It works, and Renogy for now has the ONLY bidirectional DC-DC charger which is the big attraction for me.
Review: Read instructions! :-) - This charger is for my pickup bed/camper and charges a lithium battery. The power supply is isolated from the starter battery. This charger is set up to isolate itself from the starter battery. I didn’t read carefully about the two wires that appeared to be optional. They’re described in the manual and one is required. When the charger wouldn’t charge and I read instructions more carefully, I discovered the unit required connection with one of those little wires to a power source only on when the ignition was on. I made a wire, plugged it in the appropriate slot (requires a very small blade screwdriver) and connected it to the already isolated positive power wire input to the charger. Started the engine and the battery said it was charging at 20 amps. Perfect! The second little wire allows you to charge at 10 amps. I’m adding rocker switches to these wires so I can turn them on or off easily. There is a warning about using this charger around flammable fumes so I want to easily turn it off when hauling fuel.

## Features

- 𝐒𝐚𝐟𝐞𝐠𝐮𝐚𝐫𝐝 𝐒𝐭𝐚𝐫𝐭𝐞𝐫 & 𝐂𝐡𝐚𝐫𝐠𝐞 𝐒𝐦𝐚𝐫𝐭- Renogy 12v battery charger features built-in alternator detection (charges only when engine runs!) and intelligent strategies. Even at vehicle startup, it instantly adjusts modes, protecting your car battery or marine battery. Perfect charger for RVs, boats, and vehicles.
- 𝐒𝐢𝐦𝐩𝐥𝐞 𝐒𝐞𝐭𝐮𝐩, 𝐒𝐚𝐟𝐞 𝐃𝐞𝐬𝐢𝐠𝐧- 𝐓𝐡𝐞 𝟐𝐧𝐝 𝐠𝐞𝐧 Renogy DC to DC charger boasts a compact, wall-mount design for easy installation. Its unique internal layout ensures safe distance between input/output terminals, effectively preventing short circuits in your RV, boat, or marine application.
- 𝐒𝐦𝐚𝐫𝐭 𝐋𝐢𝐅𝐞𝐏𝐎𝟒 𝐀𝐜𝐭𝐢𝐯𝐚𝐭𝐢𝐨𝐧 & 𝐂𝐨𝐧𝐭𝐫𝐨𝐥- Optimize your lifepo4 battery charger experience! Features intelligent LiFePO4 battery activation for peak performance. Easily enable or disable this function with a simple 𝐨𝐧𝐞-𝐭𝐨𝐮𝐜𝐡 𝐨𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧 (On/Off), giving you full control over your battery's status.
- 𝐂𝐨𝐦𝐩𝐫𝐞𝐡𝐞𝐧𝐬𝐢𝐯𝐞 𝐏𝐫𝐨𝐭𝐞𝐜𝐭𝐢𝐨𝐧 &𝐑𝐞𝐥𝐢𝐚𝐛𝐥𝐞 𝐂𝐡𝐚𝐫𝐠𝐢𝐧𝐠- Engineered for safety, this Renogy DC to DC charger features advanced electronic protection 𝐚𝐠𝐚𝐢𝐧𝐬𝐭 𝐨𝐯𝐞𝐫𝐥𝐨𝐚𝐝, 𝐬𝐡𝐨𝐫𝐭 𝐜𝐢𝐫𝐜𝐮𝐢𝐭, 𝐨𝐯𝐞𝐫-𝐭𝐞𝐦𝐩𝐞𝐫𝐚𝐭𝐮𝐫𝐞, 𝐚𝐧𝐝 𝐨𝐯𝐞𝐫-𝐯𝐨𝐥𝐭𝐚𝐠𝐞. Intelligently manages power output even in high-heat marine or RV environments for safe 12v battery charging.
- 𝐁𝐥𝐮𝐞𝐭𝐨𝐨𝐭𝐡 𝐂𝐨𝐧𝐭𝐫𝐨𝐥 & 𝐌𝐨𝐧𝐢𝐭𝐨𝐫𝐢𝐧𝐠- Requires Renogy BT-2 Module (𝐒𝐨𝐥𝐝 𝐒𝐞𝐩𝐚𝐫𝐚𝐭𝐞𝐥𝐲), Remotely adjust 12 volt battery charger settings via DC Home app or Renogy One Core(𝐒𝐨𝐥𝐝 𝐒𝐞𝐩𝐚𝐫𝐚𝐭𝐞𝐥𝐲). Track performance and review up to 365 days of charging data for your LiFePO4, AGM, Gel, or Flooded battery.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DQP87ZRK |
| Best Sellers Rank | #20,767 in Automotive ( See Top 100 in Automotive ) #150 in Battery Chargers |
| Customer Reviews | 4.1 4.1 out of 5 stars (1,093) |
| Date First Available | December 17, 2024 |
| Item Weight | 3.3 pounds |
| Item model number | RBC20D1U |
| Manufacturer | Renogy |
| Product Dimensions | 2.3 x 9.31 x 5.17 inches |

## Product Details

- **Brand:** Renogy
- **Input Voltage:** 16 Volts
- **Item Weight:** 3.3 Pounds
- **Output Voltage:** 12 Volts (DC)
- **Product Dimensions:** 2.3"D x 9.31"W x 5.17"H

## Images

![Renogy DC to DC Charger 12V 20A - Multi-Stage Charger for LiFePO4, AGM, Gel, Flooded Batteries | Car, RV, Marine & Boat Battery Charger with Bluetooth Compatibility - Image 1](https://m.media-amazon.com/images/I/51t1MT7vweL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great, some of the interface is a little funky
*by T***R on December 16, 2023*

I've used this almost a year now and pretty happy. I use the custom settings to charge a 400 AH lithium battery bank. Pros: - Easy to install - Seems to work reliably - Runs cool - Connections are Anderson PP75 “Powerpoles” which I liked and are way better than typical screw terminals Cons: - The software, as typical for Renogy, makes little sense. The Bluetooth app screens are somewhat nonsensical and frustrating - but - it does work for the basics, at least on my iPhone - Big giant external rotating selection switch makes me afraid I will nudge it by accident. I may pour epoxy on it. - Missing some important settings - Missing a way to disable reverse charging for some circumstances (so I just thrown the breaker I installed) - Big and Heavy Overall I have to give it 5 stars. It works, and Renogy for now has the ONLY bidirectional DC-DC charger which is the big attraction for me.

### ⭐⭐⭐⭐⭐ Read instructions! :-)
*by A***N on September 22, 2024*

This charger is for my pickup bed/camper and charges a lithium battery. The power supply is isolated from the starter battery. This charger is set up to isolate itself from the starter battery. I didn’t read carefully about the two wires that appeared to be optional. They’re described in the manual and one is required. When the charger wouldn’t charge and I read instructions more carefully, I discovered the unit required connection with one of those little wires to a power source only on when the ignition was on. I made a wire, plugged it in the appropriate slot (requires a very small blade screwdriver) and connected it to the already isolated positive power wire input to the charger. Started the engine and the battery said it was charging at 20 amps. Perfect! The second little wire allows you to charge at 10 amps. I’m adding rocker switches to these wires so I can turn them on or off easily. There is a warning about using this charger around flammable fumes so I want to easily turn it off when hauling fuel.

### ⭐ UPDATE: Two defective units in a row and I'm out all the installation fees.
*by C***T on August 27, 2021*

UPDATE: I would love to say this a great charger, however I have received two of them and neither of them worked correctly. The first one was DOA when I received it. It cost me $200 to have it installed, only to have my installer tell me it was not working correctly, and pull it out. I sent that back to Amazon, but was out the $200 installation fee. Stupidly, I bought a second one because I like the company. I again paid $200 to have this installed in my RV under the passenger seat where apparently it needs to go. This one worked, so I was happy with it. It worked well, in fact, for all of three days into my vacation, then I noticed on my battery monitor that there was no charge whatsoever coming from my alternator. On vacation, 2000 miles from home, I had to drive two hours to an RV place to have this unit taken out. Removal and reconnection of my old wiring cost me $220 this time. Now I am up to $620 in installation and removal fees. I drove the rest of my vacation with the straight alternator and was fine. When I returned I called Amazon and they agreed to take back the unit even though it was past the 30 days. They said they would charge a restocking fee but that the fee would be waived once they received the unit. They now refuse to refund the 45.00 restocking fee because the unit is not in re-sellable condition, to which I can only say, Of Course not! The long and short of it is that it cost me $665 to try to make this work and as much as I like the company, it doesn't. The units I got were defective and I would not order this again from them.

## Frequently Bought Together

- Renogy 12V 20A DC to DC Battery Charger with Multi-Stage Charging and Bluetooth Compatibility for Flooded, Gel, AGM, and Lithium Batteries in RVs, Commercial Vehicles, Boats, and Yachts
- Renogy 40A Set w Holder ANL Fuse, 40 amp (40A ANL Fuse Set w/Fuse)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-28*