UpBright Car DC Power Adapter Compatible with Rockpals PS300 - Vehicle
UpBright Car DC Power Adapter Compatible with Rockpals PS300 - Vehicle
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In this review the UpBright Car DC Power Adapter is judged on its ability to turn a vehicle cigarette lighter or 12V-24V DC outlet into a dependable charger for the Rockpals Rockpower 300 series portable power station. The bottom line: this cord is for anyone who needs a simple, long-reach, vehicle-to-generator charging solution without extra features. Tested units arrive in great working condition and the package includes a 6.0ft cord and multi-protection circuitry, making it a pragmatic accessory for road trips, RVing, or emergency charging.
Key Features
- Compatibility: Designed specifically to work with Rockpals Rockpower 300 PS300 and similar 280.8wh portable power stations, ensuring a direct fit for those models.
- Wide input range: Accepts DC 12V to 24V vehicle input so it will function from cars, trucks, RVs, and some marine 24V systems for flexible charging options.
- Built-in safeguards: Energy efficiency VI and multi-protection circuitry guard against overcharging, overheating, and short circuits for safer use in vehicles.
- Long reach: The 6.0ft extra long power cord gives freedom of placement so the power station can sit where it is most convenient inside a vehicle or camper.
- Aftercare: Units are tested and come with UpBright 30 days refund and 24 months exchange policy, providing reassurance if an issue appears.
Who It's For
This adapter is aimed at owners of the Rockpals Rockpower 300 PS300 or the R481-1503000CU series who want a straightforward way to top up their portable power station from a vehicle DC outlet. It suits campers, RV owners, boaters, and anyone who uses a generator as a backup and needs an on-the-road charging option.
It is not for users who require fast 120V AC charging from the car or advanced multi-stage smart chargers; for those needs a dedicated inverter or a factory-specified AC charger is a better fit.
Pros & Cons
Pros
- Direct compatibility with Rockpals PS300 models simplifies setup and avoids adaptor guessing.
- Built-in multi-protection increases safety when charging from vehicle outlets.
- Long 6.0ft cable permits flexible placement of the power station inside a vehicle or camper.
Cons
- Simple DC cord only - it does not provide AC power or rapid high-power vehicle charging.
Specifications
| Product type | Car DC Adapter Power Cord Charger |
| Input | DC 12V - 24V |
| Output | DC 12V - 18V |
| Cable length | 6.0ft |
| Color | Black |
| Compatibility | Rockpals Rockpower 300 PS300 / R481-1503000CU |
| Warranty/Support | 30 days refund, 24 months exchange |
Our Verdict
The UpBright Car DC Power Adapter is a no-frills, reliable solution for Rockpals PS300 owners who need to charge from a vehicle outlet. It offers sensible safety features, a long cord for placement flexibility, and a reassuring tested-unit policy, making it good value for road users and campers who want a simple, compatible DC charge option.
Frequently Asked Questions
Will this charge my Rockpals PS300 from a car?
Yes. The adapter accepts DC 12V - 24V vehicle input and is designed to charge Rockpals Rockpower 300 PS300 models.
How long is the cord?
The included cable is 6.0ft long, allowing flexible placement of the power station inside a vehicle or RV.
Does it include safety protections?
Yes. The adapter has energy efficiency VI rating and built-in multi-protection against overcharge, overheat, and short circuits.
Editor's Take
The UpBright Car DC Power Adapter is a reliable, tested DC charging cord for Rockpals PS300 owners, offering multi-protection, a 6.0ft cable, and good value for road and RV use.

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