ATEM POWER 12V 20A DC to DC Battery Charger MPPT Dual Battery



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Gear up for your adventures with the ultimate dual-battery solution: the ATEM POWER 20A DC to DC charger. With its advanced features and superior performance, this DC-DC charger is the perfect companion to keep your batteries fully charged and ready for action, ensuring you never run out of power when you need it most. The ATEM POWER DC to DC charger is an upgraded, automatic multi-stage charger that delivers up to 20A of power. It charges Lead Acid, AGM, Gel, calcium, LiFePO4 batteries efficiently, eliminating compatibility concerns. Moreover, It seamlessly adapts to your vehicle's smart alternator and maximizes solar power through the integrated MPPT controller for optimal utilization. This ATEM POWER battery box is made of sturdy ABS housing and ideal for 4x4s and small boats, this battery box, which is suitable for batteries with dimensions up to 39.3cm*18.3cm*21.5cm, is built to protect your battery from dust, shock, impact, corrosion, UV and other chemical solvents
  • Charger-Advanced Charging Algorithm: Our smart multi-stage charging process optimally charges your batteries, delivering them to their peak levels for extended use.
  • Charger-Smart Protection: Safeguard your device against solar input overload, over-charge, short circuit, over-temperature, thermal load, and reverse polarity.
  • Charger-Battery Re-selection Made Easy: Switch batteries effortlessly! Our ATEM POWER DC to DC charger allows quick re-selection by long-pressing "POWER."
  • Charger-Convenient and Intuitive: The LED indicator provides real-time charging stage updates, while the integrated memory function enhances charging convenience.
  • Charger-Please note: always refer to the wiring diagram in this listing for the latest wiring setup of the product as the user manual might be for previous version.
  • Battery Box-Multiple Outlets: Power is delivered through the 2x USB ports, 2x Anderson plugs, a 12V charging port and a 12V CIG socket.
  • Battery Box- LCD Display: The LCD display provides you the exact status of the voltage of your battery so that you can charge it timely.
  • Battery Box-Super Convenience: The box comes pre-wired, so all you need to do is to connect to the battery terminals and it is good to go.
  • Battery Box-Quick Anderson Plugs: The box itself can be charged using solar panels or any power source with its Anderson plugs.
  • Battery Box-Versatile Functionality: This battery box is ideal for 4x4s, small boats, solar panels, electronic devices and camp lights and fridges.
20A DC to DC Charger
Type:Multi Stage

DC Battery: 13.0~16.0Volts

Solar Input: 16.0-25.0 Volts

Output/Charging Voltage:14.4~15.4 Volts(Stops charging when alternator output or vehicle battery below 12.5 volts)
Min. Solar Input Current:5A
Output Current:

DC Output: 20A

Solar Output: 20A

Minimum Start Voltage:2.5 Volts-For battery being charged
Soft Start:Yes
Operational Temperature:-10℃~45℃
Soft Charge Current:DCDS20@20A
Bulk Charge Voltage:14.7V(AGM/Gel)14.4V(Lead Acid)15.4V(Calcium)14.4V(LiFePO4)
Absorption:Constant voltage with automatic amperage control
Float Charge Voltage:13.5V(AGM/Gel)13.5V(Lead Acid)13.5V(Calcium)
Float Charge Current:100mA
Battery Range:60 to 600Ah
0-1 Metres:12AWG
1-5 Metres:8 AWG
5 Metres+:6 AWG
Package Dimensions:316x240x63mm
Gross Weight:1.25kg
Battery Box
Input voltage:12-24 V DC
Anderson Plugs:50A
5V USB Ports:1A/2.1A
CIG Socket:12V
Circuit Breaker:10A
Package Dimensions:470x255x290mm
Gross Weight:2kg

  • 1x ATEM POWER 20A DC-DC Charger
  • 1x ATEM POWER Battery Box
  • 1x Fastening Strap
  • 1x Internal Bracket
  • Accessories

1 Year Warranty For Battery Charger
2 Years Warranty For Battery Box

Delivery :

  • Please note that deliver to PO BOX address is available for products below 22kg and 1M length. Please make sure you have provided a correct physical address during checkout on products of excessive size.
  • Our shipping system cannot accept order changes or cancellation after payment is made. You can follow our return policy for more information.
  • To aid in smooth and speed of delivery, ensure your address is correct during the checkout. With correct information provided, your order is dispatched within 1 business day. Any changes to address after payment made will not be considered.
  • Please allow 2 to 12 business days for product to arrive. We highly recommend to provide an answerable contact number and email address as we do make call to follow up item delivery status.
  • Your item will be sent via Australia Post or courier depending on its size and weight.

Australia Post :

  • You will receive a notification email along with a tracking number.
  • If you are not at home during normal business hours (9am – 5pm), you will receive a card indicating the item is required to be picked up from a local depot. A signature is required for collection with a valid photo ID.
  • A re-delivery fee will be charged to you for items that are returned to our warehouse due to incorrect address or failure to collect from local depot.

Courier :

  • Delivery is not available on weekends, public holidays or after business hours.
  • Please note a re-delivery fee will be charged to you for items that are returned due to incorrect address or failure to collect from local depot.
  • We aid to provide door to door delivery for every customer. However, buyers in remote areas may be required to collect item from their nearest freight depot. Please ensure if you have any questions about the re-delivery service, we are always here to back you up.

Pickup :

Please note Pickup is available only for unpaid orders


Collection required within 3 business days of stock being available.



We provide free delivery for most metropolitan areas in Australia, but there may be additional delivery costs associated to some areas. 

Any delivery charges for your order will be shown once your postcode is entered during the checkout process.

To view the list of non-free shipping delivery postcodes , please check the table below/












4421,4450-4499, 4680, 4700-4805, 9920-9959


4806-4899, 4900-4999, 9960-9999