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 our AC mains ePOWER battery charger. GEL, AGM, Flooded, Lithium and the ability to create  a full custom profile
• Vehicle input allows for either 12 or 24v and a maximum solar input of 45V/800W
• 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 with charger for more accurate battery charging

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.

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.

 

Model	EN3DC40+
Output Rating
Output Voltage	12V Nominal (8.0V min)
Output Current (Maximum)	40A ~ 50A
Output Power	775W
Charger DC Output (CH1):
Selectable Battery Type	Gel, AGM, Flooded, Lithium, Program
Charger Voltage Range	13.8V – 15.5V
Float Voltage Range	13.0V – 13.8V
Charger Current (User Selectable)	5/10/15/20/25/30/35/40/45/50A (default 40A)
Equalize Voltage (Flooded Battery)	15.5V
Equalize Charging Current	10% of Bulk Current Setting
Charging Control	2 stage / 3 stage selectable (Default 3 stage)
DC Output Bank	Single
Current draw from CH1 when not in use	< 50mA
Battery Temperature Setting	Low/ Normal/ High (Battery Temperature Sensor Standard)
Efficiency	95%
INPUT Rating (CH2 – MPPT Solar)
Input Voltage	14.5 – 45VOC
Maximum Input	≤ 23V input, 500W (600W allowable) ≥37.5V-45V input, 750W (800W allowable)
INPUT Rating (CH3 – Start/Alternator)
Input Voltage	10.5 – 16VDC / 21 – 32VDC
Dimensions
Height x Width x Depth	242mm x 172mm x 74mm
Unit Weight	1.85 Kg
Shipping Weight	2.17 kg

 

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 Recommended
5	200watt @ 43Voc	1000watts	Not Recommended

* 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.

Enerdrive B-TEC LiFeP04 12v 200Ah G2 Lithium Battery:

Available in 12v 100Ah, 125Ah, 200Ah and 300Ah capacities and 24v 100Ah & 36v 100Ah, the ePOWER B-TEC lithium battery is designed and intended for use in deep cycle applications where a single battery is required that meets the amp hour capacity.

Smart Phone Monitoring System:

The Enerdrive B-TEC G2 battery incorporates wireless Battery Monitoring Technology. By downloading the Android™ or Apple® app to your smartphone or tablet device, you can monitor the following information;

• Battery Capacity
• Battery Voltage
• Battery Current (Amps)
• Battery State of Charge (SOC)
• Battery State of Health (SOH)
• Battery Status
• Individual Cell Voltage
• Battery Temperature
• Battery Cycles
• Battery Alarms
• Battery Event Information

Battery Management System:

The battery is also equipped with an internal Battery Management System that can monitor and optimise each Prismatic cell within the battery during normal operation. It will protect the battery pack from over charge, over discharge, over temperature & short circuit. The BMS helps to ensure safe and accurate operation of the battery.

Size & Weight:

Lithium v AGM Capacities:

• 100Ah Lithium = 160Ah AGM
• 125Ah Lithium = 200Ah AGM
• 200Ah Lithium G2 = 320Ah AGM

(Based on standard depth of discharge for both Lithium (80%) and AGM (50%).

The Enerdrive B-TEC G2 battery provides 60% more usable power than its equivalent lead acid cousin and being nearly 50% lighter and 30% smaller makes for a superior alternative. The Enerdrive B-TEC G2 battery is perfect for camper trailers, 4WD’s (AUX battery), caravans, small water craft, low power communication sites or any other application that requires the use of a single deep cycle battery that meets the amp hour capacity.

The New Generation 2 B-TEC

So, How does the New Enerdrive Generation 2 (G2) B-TEC 200Ah Lithium Battery measure up against it original predecessor? Let’s have a look.

Dimension	Original	Generation 2
Length	485mm	505mm
Width	170mm	172.5mm
Height	245mm	265mm

The increase in height allows for full 360° connection of the battery cables the make installation easier and more flexible. Also included for free is a metal battery tray and hold down strap to complete the installation process. The G2 now incorporates a “Built-In Reset Button” making re-starting a flat battery a breeze. No longer do you need to apply a voltage to the battery terminals to wake up the battery. Press the button and within seconds, the battery will come back to life ready to accept a charge source to rejuvenate the battery. The new G2 also includes a RS485 communications port located on the top of the battery. This port allows for integration onto other CanBus systems for data monitoring and recording.

The New Enerdrive Generation 2 (G2) B-TEC 200Ah Lithium Battery now comes with a 5 year warranty, giving you peace of mind that this product will keep you covered. With over 7 years of researching, designing and testing lithium batteries and the associated charging systems, Enerdrive are at the forefront of lithium battery systems in Australia. Enerdrive are the only Australian company that can supply a fully integrated self-branded energy system to suit your setup.

With over 3000 complete systems in operation Australia wide, Enerdrive is regarded as the leader in the field of lithium batteries and energy systems for Mobile, Marine and Remote applications.

Please Note; The G2 battery is capable to be paralleled to a second G2 battery. For maximum performance and lifespan of your G2 battery, no more than 4 batteries should be connected together to increase your overall capacity. Overall loads when paralleled should not exceed the current limits of a single batteries BMS.

The G2 200Ah battery is able to accept a maximum inverter capacity of 2600W only. Exceeding the maximum inverter capacity can damage the BMS Management within the battery. If you are requiring a battery system larger than the Enerdrive B-TEC G2 battery, please look at the Enerdrive Pro Series Power Pack Systems which can offer multiple parallel and series connections with Active Cell Balancing Protection across the entire pack.

Specifications

Normal Specification	EPL-200BT-12V G2
Nominal Voltage	12.8V
Nominal Capacity	200Ah
Cycle Life (DOD – 80% under controlled conditions)	≥ 2000 Cycles
Standard Charge Specification (Lithium profile charger required)
Battery Charge Temperature	0 ̴ 45°C
Normal Charge Voltage CV/CC*	14.20 ̴ 14.60V
Standby (Float) Voltage	13.50 ̴ 13.80V
Maximum Charge Current	150A @ 25°C for 30mins
Recommended Charge Current For Maximum Life, Charge in the lower amperage range	40~100A
Standard Discharge Specification
Battery Discharge Temperature	-20 ̴ 60°C
Battery Output Voltage Range	11.00 ̴ 14.60V
Maximum Discharge/Pulse Current	200A @ 25˚C ±5˚C for 30 mins
Pulse Discharge Current	450A for 1.0s
Discharge Cut-off Voltage	≤11.20V
Circuit Protection	The battery is supplied with a LiFePO4 Battery Management System BMS that can monitor and optimize each single prismatic cell during charge & discharge, to protect the battery pack from overcharge, over discharge & short circuit. Overall, the BMS helps to ensure safe and accurate operation of the battery.
Over-Charge Protection
Over-charge Protection Per Cell	3.90V ± 0.03V
Over-charge Release Per Cell	3.60V ± 0.05V
Over-charge Release Method	Discharge below release voltage
Over-Discharge Protection
Over-discharge Protection Per Cell	2.80V ± 0.05V
Over-discharge Release Per Cell	3.20V ± 0.05V
Over-discharge Release Method	Apply Charge/Voltage ≥12.8V
Battery Manual Reset Button	Yes
Over Current Protection
Discharge Over Current	220A for 30s – 450A for 1s
Protection Reset Time	Approx 10s Auto Release
Over Current Release Method	Disconnect Load
Over Temperature Protection
Battery Discharge Over Temperature	Protection to 65°C ± 5°C
	Release at 50°C ± 5°C
Battery Charge Over Temperature	Protection to 55°C ± 5°C
	Release at 45°C ± 5°C
Short Circuit Protection	Auto release after 5s
Dimensions
Length	505mm
Width	172.5mm
Height	265mm
Weight	Approx 25.0 Kg
Storage Information
Temperature & Humidity Range	≤ 30 days -20°C ̴ 60°C, 5 ̴ 75% RH
	≥ 90 days -10°C ̴ 45°C, 5 ̴ 75% RH
Self-discharge Rate	≤ 3% Per Month