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: 312086643

Details

Brand
Renogy
Color
Charger for
Item Weight
3.13 Pounds
Output Voltage
12 Volts (DC)
Product Dimensions
3"D x 9.6"W x

⚡50A high current output

🔋2-hour full charge time

☀️99% MPPT solar tracking efficiency

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Description

🔋 Charge smarter, drive farther — never get stranded again!

COMPACT POWERHOUSE - Lightweight 3.13 lbs and sleek 9.6in design fits tight spaces effortlessly.
SMART SOFT START CIRCUIT - Gentle voltage ramp-up protects your vehicle’s battery and starter system.
DUAL POWER SOURCE MASTERY - Simultaneously charges from alternator and solar panels to slash downtime.
NEXT LEVEL SAFETY MONITORING - Advanced protections plus app-enabled health monitoring to avoid dead batteries and costly fuel waste.
ALL ROUND BATTERY COMPATIBILITY - Optimized for Gel, AGM, Flooded, and Lithium batteries with multi-stage charging.

The Renogy 12V 50A DC to DC Battery Charger with MPPT is a cutting-edge, multi-input charger designed for professional-grade battery management. It delivers up to 50 amps with 99% solar tracking efficiency, fully charging a 1kWh battery in just 2 hours. Featuring a soft start circuit, compact design, and comprehensive safety protections, it supports Gel, AGM, Flooded, and Lithium batteries. With dual charging from alternator and solar panels, plus smart app monitoring, it’s engineered to keep your vehicle’s power system optimized and reliable, perfect for millennial professionals who demand efficiency and peace of mind on the go.

Specifications

ASIN	B093BB5JKF
Amperage	50 Amps
Battery Charge Time	2 Hours
Best Sellers Rank	#13,745 in Automotive ( See Top 100 in Automotive ) #78 in Battery Chargers
Brand	Renogy
Color	Charger for Solar Panel and Alternator
Current Rating	50 Amps
Customer Reviews	4.1 4.1 out of 5 stars (543)
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	3.13 Pounds
Manufacturer	Renogy
Mfr Part Number	for Flooded, Gel, AGM
Model Number	12V 50A
Number of Ports	2
Output Voltage	12 Volts (DC)
Specification Met	energy
UPC	810009719014
Warranty Description	3-year material and workmanship warranty

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