Solar input is still limited to 25v on these? No upgrade planned? So much for connecting a single 450 watt 48v panel.

Another year later the input voltage is, yes, still 25 volt. I was hoping for a 50-75 volt model as well. My space can accommodate 1x 400 watt panel but not 2x 200 watt panels. Bummer.

what is the maximum current it draws from the alternator?.

The victron device shows 49 amps charge without solar hooked to it . A few 1000 mile trips and its workin great . Keeps the battleborn batterys at 14.4.

The manual says: "no temperature compensation when charging lithium battery". Why?

Lithium Batteries can be damaged if the temperature is too low (less than 32 degrees) when charging them. So you have to either have a heater (or a heat pad) to keep the batteries above temp, or you have to disconnect the charging circuit when the temperature is going to be below 32 degrees. That statement is just giving you a heads-up so that you are aware of the consequences that could occur

Can i use this in an rv trailer by connecting the dc side to the output on the trailers converter, instead of an alternator?

Sure you can but won't get a large amount of amps (unless you have a higher amp inverter/Converter) to charge the system.. Just be sure to wire it without a smart alternator which is found on newer cars.

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Renogy 12V 50A DC to DC Battery Charger with MPPT, On-Board Battery for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging, Solar Panel and Alternator

Product ID: 477220803

Details

Brand
Renogy
Colour
Recommended to
Item weight
1.42 kg
Output voltage
12 Volts (DC)
Product dimensions
7.6D x 24.4W x

⚡50A high-current output

📱Bluetooth remote monitoring

🔆3-phase MPPT solar charging

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Description

🔋 Charge smarter, travel farther — never miss a beat on the road!

POWER PACKED 50 A OUTPUT - Delivers robust 50 amps to keep your batteries charged fast and efficiently.
SMART 3 PHASE MPPT TECH - Maximizes solar input with bulk, boost, and float stages for optimal battery health.
COMPACT LIGHTWEIGHT DESIGN - Sleek 9.6in length and just 3.13lbs fits tight spaces in any vehicle or trailer.
MULTI CHEMISTRY COMPATIBILITY - Supports Gel, AGM, Flooded, and Lithium batteries for versatile off-grid power solutions.
SEAMLESS BLUETOOTH MONITORING - Stay connected and in control with real-time status updates via Renogy DC Home App.

The Renogy 12V 50A DC to DC Battery Charger is a compact, multi-stage MPPT charger designed for on-board use in vehicles, boats, and RVs. It efficiently charges service batteries from alternators or solar panels, supports multiple battery chemistries, and offers Bluetooth monitoring for remote management. Ideal for professionals and adventurers seeking reliable, high-output power in limited spaces.

Specifications

ASIN	B093BB5JKF
Amperage	50 Amps
Battery Charge Time	2 Hours
Best Sellers Rank	585,166 in Automotive ( See Top 100 in Automotive ) 1,765 in Car Battery Charging Units 4,051 in Car Batteries & Accessories
Brand Name	Renogy
Colour	Recommended to Match with 60A ANL Fuse
Compatible Devices	Flooded batteries, Gel batteries, AGM batteries, Lithium batteries, LiFePO4 batteries, 12V vehicle systems, RVs, Vans, Cars, Solar panels
Connector Types	RJ45
Current Rating	50 Amps
Customer Reviews	4.2 4.2 out of 5 stars (325)
Global Trade Identification Number	00810009719014, 00810009719038
Input Voltage	12 Volts
Item Dimensions D x W x H	7.6D x 24.4W x 14.5H centimetres
Item Type Name	Using Multi-Stage Charging, in RVs, Cars, Boats, Yachts, Recommended to Match with 60A ANL Fuse
Item Weight	1.42 kg
Manufacturer	Renogy
Manufacturer Part Number	for Flooded, Gel, AGM
Model Number	12V 50A
Number of Items	1
Number of Packs	1
Number of Ports	2
Output Voltage	12 Volts (DC)
Specification Met	energy
UPC	810009719014

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¥102607

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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