Enerdrive ePOWER 12V 40A DC to DC Battery Charger designed to meet the rugged demands of Australian conditions and delivering multiple source charging for DC systems.
The Enerdrive ePOWER DC2DC Battery Charger is a fully automatic multistage, multi input battery charger with the ability to charge from either an alternator linked to a battery; or via solar power with the in built Maximum Power Point Tracking (MPPT) Solar Controller. With two inputs available, the main/house battery will be charged from either the engine while underway, or via the solar panels when stationary. The process to choose either engine or solar is fully automatic and both functions are controlled from within the unit itself without the need for external relays.
During normal operation the ePOWER DC2DC+ Battery Charger will do a full charge cycle to float stage on the house battery bank with ability to choose either GEL, AGM, Flooded, Custom Programmable or Lithium. Once float stage is reached the charger transitions to a power supply mode to support any on-board DC loads.
12V 40A DC2DC Battery Charger Features
- Two totally independent DC Inputs for both engine and solar regulation charging one house battery bank output
- DC M6 screw terminals that will allow for large battery cable connection between all sources
- A dedicated Maximum Power Point (MPPT) solar regulator
- The same battery algorithms as included in Enerdrives AC mains ePOWER battery charger including a specific lithium charging profile
- 40A output up to 40+°C with thermo controlled fan cooling
- Fully programmable LCD display to show which source is charging the battery along with charger status, voltage and amperage
- Temperature sensor included in charger for more accurate battery charging
- Common accessories to go with this DC to DC charger are the 60Amp & 70Amp breakers, also the 3 pre-wired & fused charging cables. These are available in the Accessory List above to add as optional extras, please see the product manual & drawings for the connection.
- You will require a ratchet crimping tool for this cable kit. PLEASE CLICK HERE to find our tool range.
Multistage Charging Process
The ePOWER DC2DC+ Battery Charger is a fully automatic, set and forget charger. It is designed to quickly and accurately recharge your deep cycle batteries utilising charger algorithms that help to maximise the life of your specialised deep cycle batteries.
The ePOWER DC2DC+ Battery Charger features multistage smart charging technology that enables the charger to be connected to your battery bank permanently. With the input of multiple sources, you can be assured of charging your batteries whenever underway; or when the sun is shining on your solar array.
As dictated by battery manufacturer’s recommendations, deep cycle batteries require a multistage charge sequence for perfect, fast and accurate charging. The Enerdrive ePOWER DC2DC+ smart charger delivers three primary charge stages.
Stage 1 – Bulk or Boost charge; The battery is charged at full rated output current of the charger until the battery reaches its final charging voltage, known as its absorption voltage. In this step, around 80% of the battery is recovered as fast as possible.
Stage 2 – Absorption Charge; With the charger voltage held steady, the remaining 20% is replaced with the charger allowing the current to taper off as the battery approaches full charge.
Stage 3 – Float; Finally, in the float stage the charger voltage is lowered and held at a constant and safe predetermined level. This prevents the battery from being overcharged, yet allows the charger to supply enough current to make up for the self-discharge losses of the battery, while supporting any additional loads connected to the battery (such as DC lighting and refrigerators). This stage allows for the charger to be used as a DC power supply.
Smart Charging Feature
The ePOWER DC2DC+ Battery Charger will regulate its output based on the loads connected to your battery bank. This function is important to maintain the life of your battery bank as some battery chargers mistake loads for discharge and continue to keep the batteries in the bulk or absorption stage for extended periods of time, which will damage the battery bank. The ePOWER DC2DC+ Battery Charger has two methods of load based regulation to ensure your battery charger transitions to float when it should do so.
Maximising your Solar Harvest using the DC2DC+
The Solar Input on the DC2DC+ unit has a maximum rated INPUT current of 30amps. This means it is optimised for using higher voltage ‘grid’ type modules for best output performance. The maximum achievable output using standard 20Voc solar modules will be approx 35amps @ 14.4Vdc.
|Panel Array||Rated Wattage & Volts||Open Circuit Rating||Estimated DC Amps Output (## See Below)|
|1||150watt @ 20Voc||150watts||10|
|1||200watt @ 43Voc||200watts||13|
|2||150watt @ 20Voc||300watts||21|
|2||200watt @ 43Voc||400watts||27|
|3||150watt @ 20Voc||450watts||31|
|3||200watt @ 43Voc||600watts||42|
|4||150watt @ 20Voc||600watts||35*|
|4||200watt @ 43Voc||800watts||47**|
|5||150watt @ 20Voc||1000watts||Not Recommend|
|5||200watt @ 43Voc||1000watts||Not Recommend|
* Maximum achievable output on the DC2DC+ unit when using 20Voc Solar Panels will be the approx 35amps. ** Maximum achievable output on the DC2DC+ unit when using 43Voc Solar Panels will be the approx 47amps.
## IMPORTANT NOTE: Estimated Amps Output is quoted based upon PERFECT Solar conditions including Sun Angle, Panel Mounting angle and Orientation to the sun. It needs to be noted that panel performance alters dramatically between Summer and Winter periods and actual performance may be impossible to predict.
For In Vehicle & Marine Wiring Diagram, click below:
For Towed Vehicle Wiring Diagram, click below:
For Pre-Wired Cable Kits (input only), click below:
Product Category Battery Chargers
Warranty Period: 5 Years
Temperature Setting Low/ Normal/ High (Battery Temperature Sensor Standard)
Charger Mode Output Voltage 13.8V - 15.5V
Float 13.0V - 13.8V
Weight (kg) 1.85
Selectable Battery Type Gel, AGM, Flooded, Lithium, Program
Charger Efficiency 95%
Output System Voltage 12V
Dimensions 242 x 172 x 74mm (L x W x H)
Output Current Rating (Amps) 40
Charging Control Three Stages
DC Output Single
Enerdrive DC2DC Chargers - Part 1 - Overview
Enerdrive DC2DC Chargers - Part 2 - Specifications
Enerdrive DC2DC Chargers - Part 3 - How to Install
Enerdrive DC2DC Chargers - Part 4 - How to Install (Smart Alternator)
Enerdrive DC2DC Chargers - Part 5 - How to Program Settings
Enerdrive DC2DC Chargers - Part 6 - How to Operate Your Charger
Enerdrive DC2DC Chargers - Part 7 - Fault Finding
Enerdrive DC2DC 40A Battery Charger Honest Review
Camper Trailer Battery Charger Review: Enerdrive 40A DC to DC Charger
Customer Review: Using The Enerdrive DC To DC Charger To Run A Portable Fridge
Enerdrive DC to DC Charger Review: EN3DC40+
Enerdrive Discusses Why Battery Cable Size Matters!
Introducing The Enerdrive Battery Charger Range
EN3DC40+ Enerdrive Battery Charger Run Through
Enerdrive eTIPS - How to Program Your Enerdrive 12V 40+ DC2DC Charger
How to Program Your 12V 40+ DC2DC Charger For A Lithium Battery
MPPT Review by NeilStill setting up my solar system with this controller but it definitely ticks all the boxes including price(Posted on 25 November 2023)
Enerdrive Review by Michael DillonI have owned and traveled with this product in my slide on for 12months, it’s so good I brought another one for my 4WDing canopy(Posted on 9 November 2023)
Enerdrive 40A DC2DC battery charger Review by GaryVery happy with My Generators prompt service and help, will definitely let other Western Australians know of your great service and price of products. Thanks(Posted on 12 October 2023)
Great product have used in both my vans Review by Steven noldtGreat bit of gear. This is my 3rd I have installed and used. Easy display read outs. Quality and service support is top.(Posted on 17 February 2023)
What size battery charger do I need for my lead acid battery I have in my camper?
A good battery charger rule of thumb for charging a lead acid battery, is using a charger with output current (amps) of 10-20% of the battery total stored capacity (Ah).
So, for example if the battery is 12V 100Ah, the charger need to be minimum of 10A and maximum of 20A. Often splitting the difference at 15% (so a 12V ~15A charger) is a good option. Happy charging!
Hello,Can I run 2 seperate solar sources into the unit?I'm looking at a fixed 180w panel on the roof, and then plugging an additioanl 200w blanket into it when I stop.Alan
Yes you cold certainly do that. Ideally you would want to set up an external Anderson plug to connect the solar blanket into that then runs back to the charger.
Hi. What is the maximum voltage that it will except from solar? I use a 300w house panel which puts out about 35v
The input voltage range is between 14.5 - 45VOC.
Hi, just wondering if you are able to select which the charger will draw from first? Eg. Solar over alternator. If so will it still use the alternator if more is needed?
There are provisions to manually override the charging source from alternator to solar.
However Enerdrive state: If Manual Override Mode is used and left on there is a risk of flattening the start battery. The preferred method is to use the automatic override method by connecting the ignition source to the ignition terminal of the DC2DC+ charger.
HI, is the latest model that will charge up to 50amps?Cheers
Yes this is the latest model from Enerdrive.
It does have the capabilities of charging up to 50A!
Hi Team,Two questions.1) When connected to my smart alternator car, with the car off and solar connected, I assume the charger will charge my aux battery bank using solar, but as soon as the car is on, it will preference the alternator.2) I have two
Hi There, in regards to question 1, vehcile charging will take priority when the ignition is on. Unfortunately question 2 didn;t come through. Feel free to call us on 1300 400 122 and we will be happy to help.
Hi I have a Enerdrive power charger pack 3 and it is making a continuous noise, should this be happening.
Hi There, It could be the cooling fan. Feel free to contact us on 1300 400 122 and we will be happy to get more information and advise next steps.
Does the dcdc charger come with smart alternator battery sense module or doIhave to buy it separatelyThanks
Hi There, It would need to be bought separately. It is generally reccommended to wire it directly off the ignition. The below video may help.
Hi Will this charger take 4 x 160 watt panels in parallel ThanksChris
Hi There, Yes, 4 x 160w or 4 x 180w panels connected in parallel would be ok for solar input on this charger.
is there a remote head to use with the Enerdrive EN3DC40+ 40A DC2DC charger
Currently there is not a remote option for the Enerdrive EN3DC40+ sorry.
Does the Enerdrive dc2dc charger have a voltage sensitive relay to disconnect from the starter battery of a vehicle with a standard (dumb) alternator once the ignition is off?
If you use the ignition sense wire, the DC DC charger will cut off leaving your starter battery fully charged.
You can review the manual here to look at install options: https://www.mygenerator.com.au/assets/images/resource/pdf/DC2DC-PLUS-User-Manual-WEB-1.0.pdf
If the charger is mounted in a camper or can, what would the result of NOT connecting the ignition wire?
Please refer to the notes on page 21, and 22 for details regarding ingition sensing.
Can it run from the solar & altenator simuitaneousl with a preferance to solar first.
The EN3DC40+ will not charge from the alternator, and solar at the same time.
It will preference the alternator when the vehicle is running. To switch to solar you would need to change the charger setting to solar.
LiFePo4 manufacturers suggest that the dc/dc charger output should be 20% of the battery's Ah capacity. This suggests that the charger is unsuitable for a battery less than 200Ah. can the output be limited in anyay to 20A / 30A etc?
The Enerdrive 40A charger output can be programmed from 5A - 50A depending on your battery size.
If I have a 100ah AGM in my camper and a 200w solar blanket will this 40amp DC to DC be okay to use?I plan to upgrade to a lithium battery in the future so want to install something for now and when I get the lithium battery.
The Enerdrive 40A DC DC charger will certainly do the job for your current installation, and will also work for your future lithium battery installation.
They are a great charger, and very easy to install.
Am I able to run 240v power into this unit when my 4wd is parked up to keep my 12v system in peak condition?
The Enerdrive DC to DC charger does not have mains power input.
To charge your system from mains power you would require a 240V charger.
You can find our range of 240V chargers at the following link:
Hi,Just wondering what the IP rating of these are.eg. IP67ThanksGrant
These chargers are not IP rated sorry. They are designed to be fit inside the vehicle with no possibility of coming in contact with water.
Can I use the dc2dc charger with a 600 watt wind turbine. I have a battery bank of 4 120 AH 12 volt batteries.
This charger is not suitable for use with wind turbines sorry.
Can I link Enerdrive dc-dc and 60a ac-dc charger outputs together and then run one cable to a battery?
Unfortunately Enedrive chargers along with other chargers we sell are not capable of doing this.
An option would be a Redarc Manager system however we do not stock them on their own at present.
hi guys ....just wondering if the charger will work if i run my 400watt airgen to the starting battery first then run the charger input wires to start battery,,to be able to charge a house battery(300amp) without starting the engine TIA roger
We would recommend clarifying this with Enerdrive.
You can contact them on: 1300 851 535
Does the temperature compensation sensor work when the unit is operated with custom charge settings?
Yes it doe The only setting which renders the temp sensor unusable is Lithium mode. This is ok because the temp variables allowable for lithium is such that the lithium algorithm is not effected by it.
Does it automatically choose 24v when attached to a 24v system or does it manually have to be switched?
You do not need to manually set that your system is 24V.
Provided the voltage from the system meets the 24V requirements for the charger, it will do all the work.
You can read the manual for the charger here:
What is the maximum amount of solar wattage i can use with the endrive ePower 12v 40 Adc-dc charger?
Enerdrive state the following:
*Note: The recommended maximum solar wattage input for the DC2DC+ Charger is 500w. You can however “overdrive” the MPPT controller. Please note that doing this is partially an economic decision. You can install more power than the controller can use and this will contribute to better power availability. Enerdrive suggest a total maximum overdrive of 20% (total 600w). On cloudy (or intermittent sunny) days there will be little or no power shaving and the extra power will serve the battery well with more energy harvest earlier and later in the day
Would you recommend having a seperate mppt solar regulator to the dc - dc charger so that a secondary battery can be charged by both inputs at the same time or is a dc - dc charger with mpg input good enough to do the job
From our experience we do not see the need for an additional MPPT for charging a second battery at the same itme as charging from the vehicles alternator.
The Enerdrive EN3DC40+ can output up to 50A @ 12V which is a lot of charging power.
If I have a 240volt charger also connected to the batteries and I plug it in to keep everything top up when in my shed will this hurt the DCDC charger? Or do I need to disconnect it?
Provided you are not trying to charge with both sources at the same time there should be no issue whatsoever!
A lot of folks do this with their caravans to prevent the batteries going dead when in storage.
Does this charher have functions to communitcate with a smart alentator
The Enerdrive DC DC charger is designed to work with smart alternators without any charging issues.
Is this charger able to charge a calcium battery, the specs only mention Gel, AGM, Flooded, Lithium
Unfortunetely they don't have a Calcium charging profile. You would need to contact your calcium battery supplier and find out if they recommend one of the standard settings noted, ie Gel, AGM, Flooded or Lithium, and then set the chargers accordingly.
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