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 Smart 50A DC-DC MPPT Battery Charger 12V, Dual Input for RVs/Vans

Product ID: 312086643

Details

Brand
Renogy
Color
Charger for
Item Weight
3.1 pounds
Output Voltage
12
Product Dimensions
3"D x 9.6"W x

⚡50A high-current output

🔋2-hour full charge for 1kWh battery

☀️99% MPPT solar tracking efficiency

¥84389

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Description

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

BUILT IN FORTRESS - Multi-layered protections guard batteries & electronics 24/7.
COMPACT POWERHOUSE - Lightweight 3.1 lbs, fits tight spaces without compromise.
SAFE SMART START - Gentle voltage ramp-up protects your vehicle’s electrical system.
PRECISION MPPT TRACKING - Harness up to 99% solar efficiency for rapid, smart charging.
DUAL INPUT POWER MASTERY - Simultaneously charges from alternator & solar to slash downtime.

The Renogy Smart 50A DC-DC MPPT Battery Charger is a cutting-edge 12V dual-input charger designed for RVs and vans. It delivers up to 50 amps with 99% MPPT solar tracking efficiency, enabling a full 1kWh battery charge in just 2 hours. Featuring multi-stage charging, soft start voltage ramping, and comprehensive safety protections, it ensures reliable, fast, and safe battery management. Compact and lightweight, it’s engineered for easy installation in tight vehicle spaces and backed by a 3-year warranty.

Specifications

ASIN	B093BB5JKF
Amperage	50 A
Battery Charge Time	2 hours
Best Sellers Rank	#19,238 in Automotive ( See Top 100 in Automotive ) #107 in Battery Chargers
Brand	Renogy
Color	Charger for Solar Panel and Alternator
Current Rating	50 A
Customer Reviews	4.2 4.2 out of 5 stars (343)
Global Trade Identification Number	00810009719014, 00810009719038
Input Voltage	12 volts
Item Dimensions D x W x H	3"D x 9.6"W x 5.7"H
Item Type Name	On-Board Battery Charger for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging
Item Weight	3.1 pounds
Manufacturer	Renogy
Mfr Part Number	for Flooded, Gel, AGM
Model Number	12V 50A
Number of Items	1
Number of Ports	2
Output Voltage	12 volts_of_direct_current
Specification Met	energy
UPC	810009719014
Warranty Description	3-year material and workmanship warranty

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¥84389

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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