Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsiTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
The Baseus EnerFill FC11 20,000mAh 45W power bank is a good fit if you want a high-capacity battery with two built-in USB-C cables and the option to connect up to four devices. Its key trade-off is that 45W is the advertised maximum, not a promise that every port—or every connected device—gets that much power at once. Check the model’s SKU and wattage before buying: another FC11 listing is rated at 22.5W.
Which Baseus EnerFill FC11 is this?
This article covers the 20,000mAh, 45W configuration identified by Baseus in the US and UK as SKU E0031100. Baseus’s US product listing and UK listing describe that model. The FC11 name is not enough to identify the specification: a Baseus Bangladesh listing describes an FC11 with the same 20,000mAh capacity but 22.5W maximum output.
- For the model discussed here, look for both 20,000mAh and 45W on the listing, and verify SKU E0031100 where shown.
- Do not assume another product named FC11 has the same output or configuration.
What do you get with the 20,000mAh 45W model?
Baseus lists two built-in USB-C cables, USB-A and USB-C connector types, and four ports. The company says the power bank can charge up to four devices. That combination is useful if you regularly carry several devices or would rather not pack a separate charging cable for every USB-C device.
Quick wins for a faster PC:
Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →Baseus publishes an approximate weight of 362g and dimensions of 1.26 × 4.37 × 2.67 inches. These are manufacturer specifications, not independent measurements. The product page does not provide a complete port-by-port output table, so it is not possible to establish from the listed details which port delivers what output under every combination of connected devices.
#1 Best Overall
- Ultra-Slim & Pocket-Ready Portable Charger: Designed for everyday carry, this compact power bank measures just 4.3 × 2.6 × 0.7 inches and weighs only 7 oz, making it easy to slip into a pocket or bag. Despite its slim profile, it packs a 10,000mAh high-capacity battery, delivering up to 1.8 full charges for iPhone 17. Ideal for commuting, work, and travel.
- 45W High-Speed Charging: Delivering up to 45W fast charging, this portable phone charger keeps your devices energized in no time. It boosts an iPhone 17 Pro to 67%, and a Samsung S25 Ultra to 60% in just 30 minutes. With 30W rapid input, the portable power bank also recharges quickly and supports pass-through charging for ultimate convenience.
- Dual Built-in USB-C Cables: Experience clean, clutter-free charging with two integrated USB-C cables that eliminate the need for extra cables. Both cables of the USB-C power bank have been tested to withstand over 10,000 pulls and bends. Power up your devices instantly and lastingly by this portable charger USB-C, or share a cable with someone else when needed.
- Four-in-One Charging Convenience: Charge four devices simultaneously in emergencies with a combination of built-in USB-C1 cable, built-in USB-C2 cable, USB-C port, and USB-A port. This all-in-one iPhone portable charger supports smartphones, tablets, earbuds, drones, gaming consoles, and other USB-powered devices.
- Cool, Safe & Travel-Ready: Engineered with Baseus NTC temperature control, the power bank for iPhone maintains cool operation even during high-speed charging. Multiple safety protections guard against overcurrent, overvoltage, overheating, over-discharge, and short circuits. With airline-approved capacity and a compact build, it’s a dependable portable battery pack and travel companion for flights, road trips, and daily use.
Built-in cables and charging multiple devices
Baseus’s product copy says: “The Baseus EnerFill FC11 Power Bank delivers 45W high-speed charging for up to 4 devices simultaneously — phone, tablet, laptop, and earbuds, all at once.” That is the manufacturer’s marketing description of device compatibility and simultaneous charging; it does not establish that each device receives 45W, or that four devices charge at full speed concurrently. Baseus also says charging may slow when multiple devices are connected and after a device reaches about 80%.
Is 45W enough for your devices?
Whether the advertised maximum suits you depends on the devices you intend to charge. Compare their charging requirements with the power bank’s output, and consider how you use it: a phone and earbuds place different demands on a power bank than a laptop. Because Baseus does not provide a full port-by-port output table on the cited listing, do not assume that every port can supply the maximum 45W.
Rank #2
- 1️⃣ 100W PD Fast Charging: The laptop power bank can fast charge your phone and laptop with a speed up to 100W. A 30-min charge can give your iPhone 17 Pro 68% battery and your MacBook Air 50%. Perfect for busy mornings, flights, or last-minute prep — plug in and get going fast.
- 2️⃣ Built-in Dual USB-C Cables: Forget tangled cords or missing cables! This portable laptop charger comes with two built-in USB-C cables, so you can power up instantly wherever you are. The durable dual-braided design adds flexibility and strength, while cables double as a handy carrying strap, making this charger an ideal travel essential for on-the-go charging.
- 3️⃣ High Capacity Multi-Port Charging: Power that lasts, without the bulk. The 20000mah laptop portable charger with cables can charge an iPhone 17 Pro up to 4 times or an iPad Pro twice. No more battery anxiety even on your extended business trip.
- 4️⃣ Pass-through Charging: Stay powered up without missing a beat. The pass through power bank allows you to use your device while charging. It also lets you charge the power bank while using it to charge other devices. There's no downtime or waiting — just seamless power for work, gaming, or streaming.
- 5️⃣ Real-Time Display Info: This 20000mah USB C battery bank is equipped with a smart digital display that provides real-time charging information at a glance. Stay informed about the battery level so you always know when to recharge the power bank and never get caught off guard by a low battery again.
Capacity also needs careful interpretation. The 20,000mAh figure is the manufacturer-listed battery capacity; it does not tell you how much energy will ultimately reach a connected device. The available product information does not establish independently measured usable capacity or a dependable number of phone, tablet, or laptop charges. Those results vary by device and charging conditions, so a specific charge count cannot be stated from the listed capacity alone.
When is this power bank a good buy?
Consider it if you want
- A 20,000mAh power bank with a manufacturer-advertised maximum output of 45W.
- Two built-in USB-C cables and USB-A/USB-C connector options in one unit.
- The ability to connect up to four devices, while accepting that output may slow when charging multiple devices.
Compare alternatives if
- Your laptop or other device needs more output than this model advertises, or you need a clearly specified output for each port and combination of ports.
- You are choosing mainly by weight or dimensions; compare the manufacturer’s figures with other models using the same measurement basis.
- You need a known charge count, independently tested usable capacity, sustained output, or thermal-performance results. The cited product information does not establish those outcomes.
Baseus’s power-bank category guidance recommends 20,000–30,000mAh and 65–100W for longer trips. The FC11 20,000mAh 45W model meets the capacity range but falls below that wattage guidance. This is Baseus’s general recommendation, not a universal rule: choose output according to the devices you will charge and the way you expect to use the bank.
Rank #3
- 🔋 【Slim & Travel-Friendly Design】: Designed for business travelers, this flat & compact portable charger power bank fits easily in your laptop bag or briefcase without bulk. Take it to flights (FAA-compliant) and meetings without hassle.
- 🔋 【100W PD Fast Charging】: This laptop power bank charges a MacBook Pro to 50% in 30 minutes with 100W USB-C PD. It also powers phones, tablets, and Headphones via dual USB-C and dual USB-A ports. Dominate back-to-back meetings or 12-hour flights without hunting for an outlet.
- 🔋 【20000mAh High-Capacity】: Stay powered anywhere with this TSA-approved power bank. Provides 3-4 iPhone 16 Pro charges or 70%+ battery for most 13-15"" laptops – ideal for NY-LA flights. Real-time power display helps manage devices through meetings or delays.
- 🔋 【Safety & Compatibility Assurance】: Advanced overcharge/overheat/short-circuit protection certified by UL/IEC and other authoritative reports ensure the safety of your device. The 100W power bank is compatible with MacBook Pro/Air, Galaxy series, iPhone 16/15/14/13/12 series, iPad, AirPods, Steam Deck and more.
- 💌【Baseus Promise to You】: You will receive 1* Baseus 20000mAh slim 100W power bank with display, 1* 100W USB-C cable, 1* user manual, 24-month warranty for worry-free ownership, lifelong 24/7 professional support, free returns or replacements for guaranteed satisfaction. It makes an ideal Christmas gift for your wife, husband, children, friends, or colleagues. Whether you need technical assistance or product guidance, our team is dedicated to delivering swift and satisfactory solutions for every inquiry.
Can you take the Baseus FC11 20,000mAh 45W on a plane?
Baseus markets the 45W product as airline-approved and says it has CCC certification. Those are manufacturer claims; the product pages do not independently verify acceptance by every airline or compliance with every jurisdiction’s rules. Check the current requirements for your airline and route before travelling rather than treating the marketing language as universal approval.
Quick Recap
What to check before ordering
- Match the configuration: confirm the listing says 20,000mAh and 45W, and look for SKU E0031100 where available.
- Check device compatibility: compare the advertised maximum with your phone, tablet, laptop, or other device’s charging needs. Do not infer a full port-by-port output schedule from the 45W headline.
- Decide whether the cables and port arrangement suit you: Baseus lists two built-in USB-C cables, USB-A and USB-C connector types, and four ports.
- Review current listing terms: availability, variants, warranty, returns, and package contents can differ by storefront and change over time. The cited product details do not establish that a particular wall adapter is included or required.
- For air travel, check current rules: confirm the requirements that apply to your airline and journey.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
