When it comes to powering devices on the road—whether you’re cruising in a car, hauling goods in a truck, navigating the seas in a marine vessel, or exploring in an RV—finding a reliable, fast, and durable car charger is non-negotiable. Many drivers and boat owners struggle with chargers that fail in wet conditions, lack enough ports for multiple devices, or don’t deliver the fast charging speeds modern gadgets demand. That’s where the SL-693 Waterproof USB Car Charger from Dongguan Chashan Xingyang Electronic Products Factory steps in: a 3-port powerhouse designed to solve these pain points and more, with compatibility for both 12V and 24V vehicle systems.
Wet environments are a common enemy of car chargers, especially for marine vessels, RVs that face rain or humidity, or trucks that operate in harsh weather. Ordinary chargers short-circuit easily, risking damage to both the device and the vehicle’s electrical system. The SL-693 eliminates this risk with its waterproof ABS PC construction, engineered to withstand splashes, moisture, and even occasional submersion—making it the ideal choice for outdoor and aquatic applications. Unlike cheap plastic chargers that crack or degrade over time, its rugged material ensures long-lasting performance, even in extreme temperatures or dusty conditions.
Fast charging is no longer a luxury but a necessity, especially for professionals who rely on smartphones, tablets, or laptops while on the move. The 3-Port PD30W QC3.0 Waterproof USB Car Charger doesn’t disappoint: it features USB-C ports with PD3.0 technology delivering up to 55W, perfect for fast-charging iPads, laptops, and high-end smartphones, and USB-A ports with QC3.0 offering 36W for Android devices, power banks, and other accessories. This dual-protocol support means you won’t be stuck waiting hours for a full charge—whether you’re topping up your phone during a quick stop or powering a laptop for a road work session.
One often-overlooked feature that can save you from costly battery issues is a built-in voltmeter. Many vehicle owners only realize their battery is failing when they’re stranded on the side of the road or out at sea. The SL-693 includes a real-time voltmeter (6-32V range) with a bright blue LED display, allowing you to monitor your vehicle’s battery voltage at a glance. This early warning system helps you detect low voltage or charging system problems before they escalate, preventing unexpected breakdowns and extending your battery’s lifespan.
Versatility is another key strength of this charger. It’s designed to work with all 12V and 24V vehicles, from standard cars to heavy-duty trucks, marine engines, and RVs—eliminating the need to buy separate chargers for different vehicles. The 3-port design (combining USB-A and USB-C) lets you charge multiple devices simultaneously, so you, your passengers, or your crew can keep all gadgets powered without fighting over outlets. Whether you’re on a family road trip, a fishing expedition, or a long-haul trucking route, this charger adapts to your needs.
Key Specifications at a Glance
Feature | Details |
|---|---|
Model Number | SL-693 |
Input Voltage | 12-24V DC (compatible with 12V and 24V vehicles) |
PD Output Power (USB-C) | 55W |
QC3.0 Output Power (USB-A) | 36W |
Ports Type | 3-Port (USB-A USB-C combination) |
Material | ABS PC (waterproof, durable, rugged) |
Built-in Voltmeter | 6-32V range with blue LED display |
Applications | Cars, trucks, marine vessels, RVs |
Warranty | 2 Years |
Brand Type | OEM (customizable for branding/design) |
MOQ | As low as 1 piece (for select variants) |
Why This Charger Stands Out from the Competition
Most car chargers on the market focus on just one or two features—either fast charging or basic waterproofing—but the SL-693 combines multiple critical functions into one reliable device. Here’s how it outperforms alternatives:
Common Questions (and Expert Answers)
Q: Will this charger work with my 24V truck or marine vessel?
A: Yes—its 12-24V DC input is specifically designed for both 12V (standard cars, RVs) and 24V (heavy-duty trucks, larger marine engines) systems, so no need for voltage adapters.
Q: Can I charge a laptop with this charger?
A: Absolutely. The USB-C ports support PD3.0 with 55W output, which is sufficient to fast-charge most laptops (including MacBook Air, Dell XPS, and other USB-C-enabled models) while on the go.
Q: How waterproof is it?
A: While the exact IP rating isn’t specified, the charger is engineered for waterproof use in marine environments and humid conditions. It’s resistant to splashes, rain, and occasional submersion—ideal for boats, RVs, and trucks that face exposure to water.
Q: Is customization available for my business?
A: Yes. As an OEM product, Dongguan Chashan Xingyang Electronic Products Factory offers customization options for branding, design, and even functionality (minimum order quantities apply). This makes it a great choice for manufacturers or retailers looking to offer a unique product.
Q: What if the charger malfunctions?
A: The SL-693 comes with a 2-year warranty, covering manufacturing defects and performance issues. Additionally, buyers have access to dispute resolution and IPR protection through the supplier’s platform, ensuring peace of mind with every purchase.
Installation Guide (Simple 4-Step Process)
Installing the SL-693 is straightforward, even for those with limited technical experience:
Final Verdict: Who Should Buy This Charger?
The 3-Port PD30W QC3.0 Waterproof USB Car Charger (Model SL-693) is a must-have for:
With its combination of fast charging, waterproof durability, dual voltage support, and built-in voltmeter, this charger delivers real value that goes beyond basic power delivery. Backed by a 2-year warranty and a supplier with a 100% positive export history to countries like the UAE, Canada, and Bulgaria, you can trust the SL-693 to perform reliably in even the toughest conditions. For anyone tired of subpar car chargers that fail when you need them most, this is the solution you’ve been waiting for.