CyberPower CPS400AI

Overview

The CyberPower CPS400AI is a mobile power inverter that converts your vehicle’s DC power into 120V AC power, providing up to 400 watts of continuous output with an 800-watt surge capacity. Designed for on-the-go use, it allows you to charge or run laptops, portable DVD players, cameras, and other small electronics while traveling, camping, or working remotely. Its compact size and versatile connection options make it a practical choice for powering devices where standard outlets are unavailable.

Key features

• Converts 10.5–15.5V DC from your vehicle into reliable 120V AC power for everyday electronics
• Two AC outlets enable simultaneous charging or operation of multiple devices like laptops and small appliances
• USB port with 1A output provides convenient charging for smartphones and tablets without extra adapters
• Built-in surge protection safeguards connected devices from power spikes and electrical damage
• Automatic shutdown prevents battery drain and overheating, enhancing safety and preserving vehicle power
• Ground Fault Circuit Interrupter protects users from electrical hazards during use
• Compact and portable design with a 6.1 x 4.7 x 2-inch form factor fits easily in travel bags or vehicle compartments
• Flexible connection options include a vehicle lighter socket plug for quick setup and battery clamps for stable, higher power connections
• Two-year limited warranty offers added assurance of durability and performance

Key specs

• Input voltage: 10.5–15.5V DC
• Output voltage: 120V AC
• Continuous power output: 400 watts
• Surge power capacity: 800 watts
• AC outlets: 2
• USB port output: 1A
• Dimensions: 6.1 x 4.7 x 2 inches
• Connection methods: vehicle lighter socket plug and battery clamps
• Warranty: two-year limited

Connectivity and compatibility

This inverter connects easily to most vehicles through the standard lighter socket, making it ready to use in cars, trucks, and RVs without additional tools. For situations requiring a more stable or higher power connection, the included battery clamps attach directly to the vehicle’s battery terminals. The two AC outlets support a wide range of small electronics, while the USB port is compatible with most smartphones and tablets, providing versatile charging options for your devices on the road.

Ideal uses and environments

The CPS400AI is well suited for travelers, remote workers, and outdoor enthusiasts who need dependable power for laptops, cameras, and other small electronics away from traditional outlets. Its compact size and multiple connection options make it a strong choice for road trips, camping, tailgating, or emergency backup power. The built-in safety features ensure peace of mind when using sensitive devices in mobile or off-grid environments.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

Learn more

Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

Learn more