Luvknit PS31H 20,000mAh Power Bank, 15W, Built-In Cables & Wireless Charging

For a camping weekend, day trip, or power outage, the Luvknit PS31H keeps a substantial backup battery and several charging options in one portable pack. Its 20,000mAh capacity and 15W output provide backup power for phones and other compatible devices.

Three built-in cables—USB-C, Lightning, and Micro-USB—help you connect common devices without packing separate charging cords. A wireless charging pad and standard USB output add more ways to charge.

Need a light for the campsite or an emergency? The built-in flashlight adds Strong, Strobe, and SOS modes to the same pack.

At a glance

The PS31H combines a 20,000mAh rechargeable lithium-polymer battery with 15W maximum output. The built-in USB-C, Lightning, and Micro-USB cables cover several common connection types, while the wireless charging pad and USB output give you additional charging options. It is designed to charge up to five or six devices simultaneously, making it useful when several people need to top up their devices on a trip.

Solar charging is intended for emergency outdoor top-ups, not as the primary way to recharge the bank. Sunlight charging is very slow, so charge the power bank using a wall adapter and cable before heading out. The included carabiner and instruction manual round out the listed components.

Usage tips

For first use, charge the unit with a 5V/2A wall charger for at least 6–8 hours to activate the cells. Before camping or travel, fully charge it from a wall outlet rather than relying on the solar panel. Outdoors, use solar charging as a supplemental emergency option when an outlet is unavailable.

To turn on or off the flashlight, press and hold the power button for 3–5 seconds. A single click cycles through Strong, Strobe, and SOS. The unit is described as weather-resistant against light splashes, but it is not fully waterproof, keep it out of heavy rain and do not submerge it.

Everyday use

The built-in connectors are handy when you want to leave separate charging cables at home, while wireless charging offers another way to power a compatible device. For a group at a campsite or beach, the combination of cables, USB output, and wireless charging makes it easier to share one power bank rather than carry a separate pack for each person. Its flashlight can also serve as a compact backup light around camp or during an outage.

Buyers often appreciate its portability for travel and emergency use, while feedback on solar charging, charging speed, and durability is mixed. That makes the intended role clear: use it as a pre-charged portable battery, with the solar panel reserved for an outdoor top-up when needed.

What to clarify

Can sunlight be the main way to recharge it? No. Solar charging is intended for emergency top-ups and is very slow. Fully charge the power bank from a wall outlet before a trip.

Which charging connections are built in? It has USB-C, Lightning, and Micro-USB cables, plus a standard USB output and a wireless charging pad. The product is described as compatible with phones, tablets, cameras, smartwatches, speakers, and Bluetooth headphones.

How do the flashlight modes work? Press and hold the power button for 3–5 seconds to switch the light on or off. Click once to cycle through Strong, Strobe, and SOS.

Buying verdict

The Luvknit PS31H suits trips and emergency kits where one rechargeable pack needs to serve multiple devices and double as a light. Its built-in cables, wireless charging, 20,000mAh capacity, and 15W output make it a practical choice for keeping everyday electronics powered away from an outlet, with solar reserved for backup top-ups.