Questions? for expert advice, or read our buying guides
Key features
- Dual battery outputs to charge a starter battery and a house or service battery from one solar array
- Automatic 12V/24V system voltage detection
- 20A rated charge current for caravan, motorhome and 4WD solar systems
- PWM charge control using a multistage bulk, absorption and float algorithm
- Programmable charge current ratio between the two batteries, with equal current to both as the standard setting
- Charge voltage settings for Gel, AGM and Flooded lead-acid batteries
- Internal temperature sensor with temperature compensation of -30mV/C (12V) and -60mV/C (24V); remote sensor optional
- Protected against over current, output short circuit and reverse polarity of the solar panels and battery
- Over-temperature protection to safeguard the controller in hot conditions
- Compact, lightweight IP20 enclosure with common negative grounding, designed for indoor mounting
Overview
The Victron BlueSolar PWM DUO 12/24V-20A is a dual-battery solar charge controller that keeps both your starter and house batteries topped up from a single solar array. It automatically detects 12V or 24V system voltage, delivers up to 20A of rated charge current and uses a three-stage bulk, absorption and float charge routine to look after your batteries, with a programmable current ratio between the two outputs.
Built for Australian caravan, camping and 4WD setups, it suits roof-mounted panels on a caravan, motorhome, camper trailer or off-road rig where you need to keep the engine start battery healthy while the auxiliary battery runs the fridge, lights and 12V accessories. Whether you're parked up at a free camp in the Outback or touring the coast, this compact Victron controller gives RV owners dependable, set-and-forget solar charging, with protection against reverse polarity, short circuit and over-temperature.
Key Features
- Charges two separate batteries, such as a starter battery and a service battery, from one solar array
- Automatic 12/24V system voltage detection with 20A rated charge current
- Three-stage charging (bulk, absorption, float) with programmable charge current ratio between batteries
- Protected against reverse polarity, output short circuit and over-temperature
- Operating range of -35 to +55C at full load, suited to harsh Australian conditions
Delivery, returns & warranty
Shipping & Returns
Shipping
Outdoor Camping Australia operates a nationwide distribution network, with items shipping from:
- Our warehouse in Bendigo, Victoria
- Partner supplier warehouses on the East Coast
- Partner supplier warehouses on the West Coast
This multi-location approach allows us to provide efficient delivery across Australia. Use our shipping calculator on the product pages for accurate delivery times and costs to your location.
Important Shipping Notes:
- We cannot deliver to PO Boxes, Private Mail Bags or Parcel Lockers
- Depot pickup options may be available at reduced rates (contact us to discuss)
- Off-mainland deliveries require additional shipping fees (custom quoted)
- Missed deliveries may incur a redelivery fee set by the courier
- All shipments managed through our trusted delivery partners including Border Express, VicTas, DHL, StarTrack, AusPost, Sendle and Aramex
Returns
As outlined in our Refund Policy, we follow the Australian Consumer Law (ACL) which protects consumers by providing certain guaranteed rights when buying goods and services.
You can return items if:
- The product is faulty or not of merchantable quality
- The product is not fit for its intended purpose
- The product does not match the description
- You can present proof of purchase
For change of mind returns:
- Item must be in original condition with tags attached
- Must be returned within 30 days of purchase
- Original proof of purchase required
- Return shipping is at customer's expense
- Original delivery charges are non-refundable unless due to our error
Refunds will be processed within 10 business days of receiving and inspecting the return.
For full details, please refer to our:
Warranty Details
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Warranty Details
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Warranty & Returns
Limited 12 Month Manufacturer Warranty
If you experience issues with your gear, please contact us for support.
What’s Covered?
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Manufacturing defects
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Faults in materials or workmanship
What’s Not Covered?
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Damage caused by misuse, neglect, or improper use
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Incidents occurring during delivery
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Normal wear and tear from usage
How to Initiate a Warranty Claim
If you need to file a warranty claim, please follow these steps:
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Contact us via email or the via the contact us
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Provide the following details:
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Order ID
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Detailed description of the issue
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Images/videos clearly showcasing the fault (ensure they meet the recommended format and size for optimal review)
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Our team will assess your claim and get back to you as soon as possible.
Note: Do not open a PayPal dispute, as this may delay the resolution process. Please follow the official claim process for quicker results.
⚠ Important Note:
We recommend testing your purchased product within one year of purchase. We cannot help process warranty claims beyond this period.
For full details, please refer to our other policies:
Customer reviews
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Specifications
| Brand | Victron Energy |
|---|---|
| Model | BlueSolar PWM-DUO 12/24-20 |
| SKU | SCC010020000 |
| Charge Mode | PWM (Pulse Width Modulation) |
| Battery Voltage | 12/24V with automatic system voltage detection |
| Rated Charge Current | 20A |
| Second Battery Output | Yes |
| Maximum Solar Voltage | 55V (use 36-cell panels for 12V; 72-cell or 2x 36-cell in series for 24V) |
| Default Absorption Voltage | 14.4V / 28.8V |
| Default Float Voltage | 13.7V / 27.4V |
| Temperature Compensation | -30mV/C (12V) / -60mV/C (24V) |
| Operating Temperature | -35 to +55C (full load) |
| Humidity (non-condensing) | Max 95% |
| Protection Class | IP20 |
| Dimensions (H x W x D) | 76 x 153 x 37 mm |
| Weight | 0.18 kg |
| Safety / EMC Standards | IEC 62109-1; EN 61000-6-1, EN 61000-6-3, ISO 7637-2 |
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Where will you use it?
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