• Guaranteed Fitment

    Always the correct part or we'll get you the right one at our cost

  • In-House Experts

    We know our products

  • Installation

    Available in most regions

  • Nationwide Delivery

    Same day local, no rural surcharge.


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EcoBoost MPPT™ Solar
Charge Controller
• Integrated USB Device Charging
• High Reliability and Efficiency
• Maximizes Energy Harvest
• Ideal for Residential and Rural Applications

• Rugged, Maintenance-free Design
Conformally coated circuit board and corrosion resistant
• Maximizes Energy Harvest
Using TrakStar MPPT technology to determine and adjust to
the true maximum power point as solar insolation changes
throughout the day.
• High Efficiency
At low, medium, and high power levels.
• Optional Meter
Provides access to system operational information
including current and historical performance data. All
EcoBoost “M” controllers include the meter.
• USB Charging
Two USB ports with 3 amps of shared charging capacity to
charge today’s modern mobile devices.
• Self Diagnostics
Continuous monitoring and reporting of any errors through its
status LED’s, or its optional display.
• Lighting Controller
Uses PV array to switch at dusk and dawn.
• Load Controller
Connect DC loads directly to the controller. Programmable
load disconnect to protect batteries.
• PV Array Flexibility
Enables 2 modules in series to charge a 12V or 24V battery system.

EB-MPPT-40 (M)
Max Battery Current 40 Amps
Load Current Rating 40 Amps
Max PV Open Circuit Voltage (VOC) * 120 Volts
Nominal Battery Voltage 12 or 24 Volt Automatic Sensing and Setting
Nominal Max Operation Power **
12 volt battery 560 W @ 40C
24 volt battery 1120 W @ 40C
Peak Efficiency 98%
Battery Voltage Range 10 - 35 V
Self Consumption <1.2 Watts
Maximum Combined USB Charging Output 3A at 5V

Dimensions (cm) 19.6(W) x 17.3(L) x 7.1(D)
Weight 1.4 kg
Wire Size Range Power Terminals 2.5 - 16mm2/ #14-2 AWG
Enclosure IP20, Type 1
Warranty 2 Years

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We do our best to get shipping rates right, but sometimes the system gets it wrong.

If we charge an excessive, or insufficient amount steps may be taken to refund, or bill an additional amount at our absolute discretion.

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

There are certain situations where only partial refunds are granted (if applicable)
- Any item not in its original condition, is damaged or missing parts for reasons not due to our error
- Any item that is returned more than 30 days after delivery

REFUNDS (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at charlie@autobatteries.co.nz.

Exchanges (if applicable)
If the mistake is our's we'll get it sorted ASAP at no expense to the customer, If the mistake is yours and you need to exchange it for a different item, send us an email at charlie@autobatteries.co.nz and send your item to: 1/4 Spencerville Road, C/- Canterbury Catering Equipment, CAN, Christchurch 8082, New Zealand.

Flick an email to charlie@autobatteries.co.nz and we'll work out the best way to get things sorted.

To keep prices as low as possible we operate online without a physical location. Pickups are possible in Christchurch, and a site visit is no problem.

Locally our team conducts battery installations, around the country we will find a local agent who can help. For solar installations we have approved agents that we recommend.

Two scenario's here, if we've made a mistake, it gets sorted ASAP at zero cost to the customer, if the customer has made the mistake it's handled on a case by case basis.

Yes, we do, various contractual (or time based) reason's that not all batteries are listed, Hit the live chat button on the right, or send an email to charlie@autobatteries.co.nz, or call Charlie on 0273005838 and we will give you our quote.

Nope, we stick to the big stuff.

If you're between Ashburton and Rangiora, and you order early enough, absolutely.

On the same stocked item, we do our best, but we've got bills to pay, and it's bloody hard to compete with the buying power of the big boys, this is handled on a case by case basis. Hit the live chat button on the right, Fire us an email charlie@autobatteries.co.nz or give Charlie a call on 0273005838 and we'll see what we can do.

Hit the live chat button on the right, Fire us an email charlie@autobatteries.co.nz or give Charlie a call on 0273005838 and we'll see what we can do.

Fire us an email charlie@autobatteries.co.nz or give Charlie a call on 0273005838 and we'll see what we can do.

All of our products are covered by manufacturer warranties

Trojan Batteries
Replace/Repair period up to 3 Years
Pro-rated Credit period up to 10 Years

Neuton Power Batteries
Up to 3 Years

Vision Batteries
Up to 5 Years

Up to 3 Years

Up to 5 Years

Trina Solar
Up to 30 Years

Customer Reviews

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