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Your purchase will lead to the planting of mangrove trees in Kenya.
We contribute a % of each sale towards tree planting because reforestation efforts revive natural habitats, improve coral reef health, support local livelihoods, and aid in the fight against climate change by extracting CO2 from the air.
Trees are planted by EarthLungs Reforestation Foundation & Veritree in partnership with the goodapi.com.
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We strive to ship all available items within 24 hours of your order. However, dispatch times may vary during weekends or holidays.
We hope you'll love your UDPower products, but if something isn't quite right, you can return it within 30 days as long as it's in good working condition. We provide a return label and support local returns throughout the U.S. for easy and fast service.
All UDPOWER power station products come with a 5-year warranty for your peace of mind. Please check the warranty policy for more details.
We offer free shipping to the 48 contiguous states. This offer does not apply to Alaska, Hawaii, Puerto Rico, Guam, or other U.S. territories.
Travel Light. Power Everything. Your Camping & Short Trip Essential.
Compact and reliable, C400 keeps your devices charged and appliances running during camping trips. Perfect for off-grid energy needs.
At 8.3 × 5.2 × 7.3 in—about 30% smaller than similar models—and only 6.88 lbs, C400 fits the spaces you already use and carries comfortably in one hand. It slides into daypacks and trunk organizers, then moves with you from car to trail to campsite without slowing you down.
An ergonomic handle shapes to a natural grip so you can carry with confidence over distance. The balanced hold helps reduce pressure points and finger strain, keeping your pace steady from trunk to trail to tent.
0% Power Loss When Turned Off.
Long-term storage without self-discharge.
8.27"L x 5.12"W x 7.09"H
(210 × 130 × 180 mm)
256Wh
UL2743, PSE, FCC, ROHS, UN38.3
Approximately 6.88 lbs (3.12 kg)
Car Socket(SAE J563) 12-13.6V, 10A, Total 136W Max
12-13.6V, 10A, Total 136W Max
Pure Sine Wave, 120V, 60Hz, 400W Total (Surge 800W)
5V-3A, 9V-2A, Total 18W
5V-3A, 9V-3A, 12V-3A,
15V-3A, 20V-3.25A,
PPS: 3.3-21.0V, 3A, Total 100W (65W + 35W)
800W
400A, 1500A Peak (For 12V vehicles only)
PD 65W Max
165W Max (Adapter + USB-C)
150W Max
11V
28V
LFP (Lithium Iron Phosphate)
80%+ capacity after 3000 cycles
-4℉ ~ 113℉ (-20℃ ~ 45℃)
32℉ ~ 104℉ (0℃ ~ 40℃)
32℉ ~ 104℉ (0℃ ~ 40℃)
① Handle
② LCD Screen
③ Power Indicator
④ Main power Switch / Screen Switch
⑤ Light Switch
⑥ Light
⑦ Eco Mode Slide Switch
⑧ DC Output switch
⑨ AC Output switch
⑩ 35W USB-C Port
⑪ 65W USB-C Port
⑫ AC Output Socket
⑬ Charging Input Port / Solar Charging Port
⑭ DC5521 Output Port (2pcs)
⑮ 18W USB-A Port
⑯ 12V Car Charger Outlet
⑰ Car Jump Starter/ EC5 Port
The C400 features a 256 Wh LiFePO₄ battery with a 400 W rated output and up to 800 W peak output in UD‑TURBO mode. It’s capable of powering most laptops, portable fridges, CPAP machines, and other small appliances.
Weighing just 6.88 lbs (about 3.2 kg), the C400 is lightweight and compact—about the size of a small backpack—making it easy to carry for weekend camping, day trips, or RV travel.
The C400 supports AC wall outlet, USB‑C PD, 12 V car socket, and solar panel charging. With dual‑input fast charging up to 165 W, it can charge from 0% to 80% in about 1.5 hours.
Yes. The C400 supports up to 150 W solar input, ideal for pairing with 100 W–120 W portable solar panels. In good sunlight, it can replenish a significant amount of power during the day for extended off‑grid use.
Yes. The built‑in jump starter delivers up to 400 A peak current to start 12 V car, motorcycle, or RV batteries. It includes reverse polarity protection and multiple safety safeguards.
The C400 can run or charge most of your essential camping gear — from mini fridges, CPAP machines, portable fans, and lights, to drones, cameras, laptops, and smartphones.
It offers multiple AC, DC, USB, and a dedicated car socket, so you can keep several devices powered at once, whether you’re at a campsite, in your RV, or on a road trip.
The LiFePO₄ battery supports 3,000–4,000 cycles (80% capacity retention), lasting up to 10+ years. It meets UL, FCC, and other safety certifications and includes overload, short‑circuit, and temperature protection.
Yes. Operating temperature range:
This makes it suitable for most camping conditions across the U.S.
Users report it can power a portable fridge, projector, speakers, and phones for several hours with charge left over. It’s quiet, sturdy, and performs well in dusty or slightly damp environments.
Yes. It supports pass‑through charging, allowing you to power devices while the C400 itself is charging. For best battery health, avoid heavy loads in high‑temperature conditions.
UDPOWER offers a 30‑day return policy and a 5‑year warranty. Warranty service and fast shipping are available within the continental U.S.
Perfect for weekend camping, short road trips, day hikes, RV travel, and emergency backup. It can power lights, cooking gear, CPAP machines, portable fans, and entertainment devices.
