25AMP Dual Battery Charger with Solar by Projecta
If you rely on an auxiliary battery to run fridges, lights, compressors or other gear, keeping it properly charged is what makes the whole setup work. The Projecta PDC25 Dual Battery Charger is designed to do exactly that. It takes power from your vehicle’s alternator or your solar panels and turns it into the correct charging voltage for your auxiliary battery, helping to keep it healthy and ready to go on every trip.
Designed for both 12V and 24V systems, the PDC25 is a smart DC–DC charger that’s built with Australian touring in mind. It offers MPPT solar charging for maximum efficiency from your panels, and it’s fully compatible with modern smart alternators. The tough, sealed alloy housing is made to handle dust, water and heat, so you can mount it in engine bays, canopies or under trays with confidence.
Whether you’re camping on the weekend, heading off on a longer overland run, or just want reliable power for work accessories, the Projecta PDC25 keeps your dual battery system charged, protected and ready to perform.
Total Environmental Protection
The PDC25 is fully sealed to an IP67 rating, giving you protection against dust and water ingress. It’s engineered to cope with heat, vibration and harsh conditions, making it suitable for mounting in demanding locations around your 4WD, trailer or caravan.
Plug and Play Installation
To make installation simpler, the charger is pre-wired with colour-coded 50A heavy-duty connectors. This helps reduce wiring mistakes and speeds up the fitment process. Extra 50A connectors are included so you can easily hook up alternator and solar inputs as well as your auxiliary battery output.
Dual Input Operation
The PDC25 can charge from both your vehicle’s alternator and solar input, and it can make use of both at the same time. This dual input operation helps you get the most out of your charging system, cutting down charge times and keeping your batteries topped up whether you’re driving, parked up at camp or doing a mix of both.
MPPT Solar Charging
With built-in MPPT (Maximum Power Point Tracking) solar technology, the charger constantly adjusts to get the best possible output from your solar panels. That means more efficient charging and better results in changing light conditions compared with basic PWM regulators.
Total Safeguard Protection
The PDC25 is loaded with safety features to protect both your batteries and your vehicle. It includes protection against reverse connection, over-voltage and under-voltage, over-temperature and sparks. This reduces the risk of damage from incorrect wiring, poor connections or harsh operating conditions and helps extend the life of your batteries.
Put simply, the Projecta PDC25 Dual Battery Charger takes the guesswork out of managing your auxiliary battery, giving you a robust and efficient charging solution that’s ready for real-world Australian conditions.
Specifications
|
|
| Part Number |
PDC25 |
| Warranty |
5 years from date of purchase (Manufacturer Warranty) |
| Alternator Input Voltage |
9 – 32 V |
| Solar Input Voltage |
28 VDC |
| Solar Regulator |
MPPT 25A |
| Output Current |
9–11 VDC → 20 A
11–32 VDC → 25 A |
| Charge Control |
Lithium: 14.2 V
AGM: 14.4 V
Wet: 14.7 V
Calcium: 14.7 V |
| Smart Alternator Compatibility |
12V Vehicle: Turn On 12.2–20 V / Turn Off <11.9 V
24V Vehicle: Turn On 24.4–32 V / Turn Off <24 V |
| Conventional Alternator Compatibility |
12V Vehicle: Turn On 13.4–20 V / Turn Off <12.8 V
24V Vehicle: Turn On 26.8–32 V / Turn Off <25.6 V |
| IP Rating |
IP67 (dust & water resistant) |
| Package Contains |
25A DCDC Charger with MPPT Solar (Plug & Play)
Red & Blue Anderson connectors fitted to charger
3-way Anderson connector fitted to charger (fits standard 50A Anderson without ignition lead)
1 x Additional Blue Anderson
1 x Additional Red Anderson |
Frequently Asked Questions
What types of batteries can the PDC25 charge?
The PDC25 is compatible with most common auxiliary batteries, including AGM, gel, calcium and lithium (depending on configuration). Always check the battery manufacturer’s recommended charging profile to ensure proper compatibility.
Does the PDC25 work with smart alternators?
Yes. The PDC25 is fully compatible with modern smart alternators, ensuring consistent and correct charging even in vehicles where alternator voltage fluctuates.
Can the charger use solar and alternator power at the same time?
Yes. The PDC25 supports dual input operation, allowing it to charge from both your alternator and solar panels simultaneously for maximum efficiency.
Is the PDC25 suitable for under-bonnet installation?
With its sealed IP67-rated aluminium housing, the PDC25 can be mounted in demanding environments, including engine bays, canopies, trailers and under-body compartments. It’s designed to withstand heat, dust and water exposure.
Does the PDC25 include overcharge or wiring protection?
Absolutely. The charger features comprehensive protection, including reverse connection, over/under voltage, over-temperature and spark protection. These safeguards help prevent damage and extend battery life.
Do I need any additional connectors for installation?
No. The unit comes pre-wired with colour-coded 50A heavy-duty connectors and includes extra connectors for alternator input, solar input and battery output, making installation straightforward.
