VINSIC 20,000mAh Power Bank Review

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The Vinsic 20,000mAh Power Bank is one seriously chunky power bank, and it needs to be given the huge size of the battery.

The power bank comes with a cloth bag to store it in as well as a USB charging cable that is used to charge the power bank and can also be used to charge your mobile or tablet. Note this is a standard USB cable that’s used by Android/Windows mobiles, if you’re an Apple iUser you’ll need to provide your own charging cable.

There is a little readout to show how much charge is left in the power bank, you’ll get a good number of charges out of this (how many will depend on your mobile/tablet battery size).  In the review video below you’ll see a HTC M9 was topped up from 27% to 34% after a 10 minute charge.

VINSIC 20000mAh Smart Identification

Due to the enormous size of the battery this takes a loooong time to charge up, you’ll need to leave this charge at least over night, if not for most of a day as well if charging from close to empty.

The glossy case is something of a fingerprint magnet and it’s very heavy compared to other power banks I’ve tried, but it also provide a huge amount of power to charge your devices so is perfect for those worried about being away from a plug socket for a few days.

Available from Amazon UK: http://amzn.to/29NMf3s and Amazon USA: http://amzn.to/29SJZZ8

VINSIC 20000mAh Power Bank Video Review

SHENGRUI Power Bank, 26800mAh Portable Charger, High Capacity External Battery Pack with AUTO IC, Dual Charging Ports, Type C Portable Phone Charger Compatible with iPhone, Samsung, Tablets and More

£23.99  in stock
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as of 01/12/2020 5:50 am


  • ▶ [26800 mAh High Capacity Power Bank] SHENGRUI 26800mAh Portable charger with high capacity enable charge iPhone 7 around 9 times, iPad Air 2 times, Samsung Galaxy S7 almost 7 times. No Need to Worry About Battery Die issues when go Hiking, Picnic or Long-time Travel.
  • ▶ [High-Speed Portable Phone Charger] Power Banks had 2 USB Output Ports are Equipped with Auto-IC Technology, Which can Detect Connected Different Devices to Deliver the Optimum, High-Speed Charge (up to 2.4A) to Almost any Device, You Can Charge up to Three Devices at the Same time, Saving you time.
  • ▶ [Safety Protection Charger Bank] Power Banks for Mobile Phones Advanced Li-Polymer Battery Technology with Built-in Multi-Protection System Protect the Power Bank against over Current and Short Circuit. It'll Automatically Turn itself off When Short Circuit or Overloading Occurs.
  • ▶ [Premium Material Design Charging Pack] The Portable Phone Charger Supply is Designed with Environmentally Friendly Materials, and the Power Bank Will not Cause Harm to the Environment and People, Lightweight and Easy to Carry.
  • ▶ [Customer Service] 24-hour Mail Service and 1-Year Product Warranty Policy.

Power Banks 30000 mAh High cost Safety Metal Shell concise fashion With LED Display 2x USB Ports Mini Flashlight Portable Phone Charger Quick Charge Mobile Phones Tablet etc.(Grey_30000mAh)

£19.99  in stock
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  • Metal case can resist external damage effectively and improve the safety 10 times than plastic case
  • The unique and LED torch is very practical for outdoor lighting, Most products don't have or only with a very small LED lamp
  • Input 3 ports + Double USB ports outputs enable to charge 2 devices at the same time,works on mobile phone tablet mini speaker DV etc.Charge power bank with input 3 ports Type-c / Lightning / Micro USB
  • Hight capacity 30000 mAh simple appearance design is portable and beautiful and fashionable .Long-term outdoor use of multi-equipment
  • Package power bank and Micro USB Charging cable .Friendly Service help you..

30W Power Delivery Power Bank, imuto 20000mAh PD USB C Portable Charger with 3 Quick Charge USB outputs Compatible with New Macbook/MacBook Air, iPhone 11 Pro Max X XS 8, Samsung S10+, iPad Pro & More

£31.99  in stock
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  • 【30W USB-C Power Delivery】Supports high-speed charging for USB Type-C PD enabled devices (New Macbook, Macbook Air, Nintendo Switch, iPhone X, most Android phones, tablets, and more).
  • 【3-USB Outputs with iM-Power Technology】Comes with iM-Power technology which it can automatically detect and adjusts the output level based on the connected device you're charging, and automatically pick up the optimal charging solution for your devices. Not only does it provide a USB Type-C Port as both an input and output, but it also includes 3 standard USB outputs(5V/2.4A).
  • 【Fast Recharged And Multiple Smart Safety Protection System】Fully recharged in about 4-5 hours by a PD adapter and Built-in safeguards keeps your devices safer from over-charging, over-voltage, over-current and short circuit.
  • 【20000 mAh Capacity with Unrivaled compatibility 】20000mAh portable charger can hold up enough power for prolonged periods of use, even vacations and business trips. It can charge iPhone 11 about 4.4 times, Samsung Galaxy S10 about 4 times, iPad(new) about 1.5 times, iPad mini(new) about 2.6 times, Nintendo Switch about 3.1 times, New Macbook about 1.5 times.
  • 【What You Get】LEO SL200PD External Battery Pack*1, USB C to USB C cable*1, USB A to USB C cable*1,Travel waterproof pouch, User guide and our 18 month warranty and friendly customer service.

Mark J Draper is a self-confessed gadget lover who forged a career in the telecommunication and utility industry while maintaining a hobby of writing and filming reviews that are published on YouTube and Reviewify.co.uk.

1 Comment
  1. I recently bought a similar model: Vinsic VSPB303. The main difference is that one of the USB ports is QC3.0, and there is a USB Type C connector.
    Thing is, it charges my Huawei P9 Plus only twice, after which the bank indicator shows 8% charge left. Per online specs, the P9+ has a 3400mAh battery. Assuming a very bad charge efficiency of 70%, math shows that the battery capacity is near 1000mAh, and not 20000mAh.
    I therefore want to take a look under the hood to check out the battery. However, I can’t get it open without using dangerous force.
    Is there a teardown of this power bank somewhere? I can’t seem to find a teardown other than for the Slim, which is very different.

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