The Best 40Amp DC-DC battery charger 2021

renogy 40amp dcdc battery charger

This 40Amp 12V DC-DC charger from Renogy is a great helper for traveling in your RV on rainy days.

It charges the battery with electricity generated by the caravan’s engine and can deliver up to 40Amps to the battery (Renogy has another version that can deliver up to 60Amps).

It supports charging of multiple battery types such as AGM, Flooded, Gel, and Lithium.

The charging output voltage for each battery type can be set with a single toggle switch.

40Amps is enough to charge your high-capacity battery in a matter of hours.

For example, if you have a 12V 280Ah LiFePO4 battery pack, the charging time is about 7 hours.

That is, when you drive from one campground to another to rest, it has been at least half of the power for your battery.

In addition to using it on trips, you can also use it to quickly charge your battery on any occasion you need it. For example, in extreme weather (hurricane/blizzard) we may face a 2-3 day power outage and we need to fully charge the battery in advance for emergencies. And at that time, your solar system may not be able to provide enough power anymore. That’s when this Renogy 40 Amp charge comes in handy.

It also supports three-phase charging. Bulk charging, boost charging and floating charging with various electronic protection functions. It gives the best protection to the battery during the charging process.

Easily install the compact yet sturdy DCDC 40A on various applications such as: RVs, commercial vehicles, boats, yachts and many more!

This little thing doesn’t just relieve your charging anxiety, it really helps you fill up your battery fast when you needed.

Specifications
Nominal Voltage:12V
Rated Charge Current:40A
Output:500W
Input Voltage Range:8V-16V
Equalization Voltage:N/A
Float Voltage:13.2-13.8v
Boost Voltage:14.1-14.7v
Operating Temperature:-20°C to +50°C
Dimensions:10.3 x 6.9 x 2.7in
Weight:4.14lbs
renogy 40amp dcdc battery charger 1
Sarah O'Connell

Sarah O'Connell

As a research member with a background as an engineer, Sarah believes we need to know enough about products before we buy and use them, especially those that require some expertise and ability to operate. Sarah is happy to share her opinion and what she has learned with everyone. She believes that conscious consumption is everyone's responsibility and that all content should be complete.

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