Charmast External Battery 10,000 mAh with 4 Integrated Cables, Portable Battery, USB C, Thin Power Bank with 6 Outputs and 3 Inputs for iPhone 12 13 11 Samsung S21 S22
£44.32
Price: S$44.32
(as of May 17, 2026 13:27:43 UTC – Details)
From the brand
Charmast focus is on portable chargers, available worldwide.
Our goal is to ensure your phone stays powered on consistently, delivering a safer and more powerful charging experience.
Built-in Cables Power Bank
20W Built-in Cables Power Bank
Mini Fast Charging Power Bank
Power Bank 10400mAh
iPhone Mini Portable Charger
Magnetic Charger with cables
High Capacity Power Bank
⚡【Power Bank with Built in Cable X 4】This power bank equipped with 3 different type cables cover almost all the Micro USB/USB C/iPhone users needs.And 1 USB A port for recharging the power bank itself.With it’s own cables, there is no more cable mess and charge in a more convenient way.
⚡【6 Outputs & 3 Input Ways】Built-in 3 output cables + 3 standard USB A outputs.Wide compatibility meet different devices charging needs.Recharging the power bank itself simply by it’s own built-in USB A cable or through Micro USB/USB C Input.
⚡【Charges 6 Devices Simultaneously】With it’s built-in 3 output cables(Micro USB+USB C+iPhone connector) and 2 standard USB A outputs also 1 USB C ouput,it allow charge 6 devices max at the same time. 【High Capacity】This power bank can charge your iPhone 11 2 times, iPhone 11 Pro 2 times, iPhone 11 Pro Max 2 times, Huawei P20 2 times etc. Enough capacity for daily use, journey or travelling etc.
⚡【Accurate LED Digital Display】The slim portable charger built-in advanced smart digital display technology, power display accuracy is up to 100% which ensures you know the remaining power clearly.
⚡【Smart E 3.0 Charging Technology】All outputs adopted the Smart E 3.0 charging technology, automatically identify your devices and deliver its maximum efficiency. Smart E and VoltageBoost combine to deliver the fastest possible charge.
13 reviews for Charmast External Battery 10,000 mAh with 4 Integrated Cables, Portable Battery, USB C, Thin Power Bank with 6 Outputs and 3 Inputs for iPhone 12 13 11 Samsung S21 S22
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£44.32
HH –
Great Everyday Power Bank
I picked up this Charmast power bank for daily use, and overall I’m very pleased with it. The standout feature is the built-in cables. It includes multiple connectors USB-C, Lightning, and Micro-USB directly on the unit, so there’s no need to carry extra cables. This makes it incredibly convenient for travel, work, or keeping in a bag for emergencies.The 10000mAh battery capacity is solid for its size and weight. The LED display is another nice touch, showing the remaining battery percentage clearly so there’s no guessing how much power is left.ProsBuilt-in cables reduce clutter and make charging on the go much easierLED screen clearly displays remaining battery levelCompact and lightweight; fits easily into pockets or small bagsCan charge multiple devices at once with up to six outputsConsThe 10000mAh capacity is good, but not ideal for frequent tablet charging or powering multiple devices repeatedlyCharging speed isn’t as fast as premium power banks, though it’s perfectly fine for everyday useOverall:A practical, affordable portable charger that delivers exactly what you need without extra accessories.Excellent value for the price.
Amazon Customer –
Great charger
Great little charger love that it has all the different ports attached the only thing is the cables are not retractable and quite short but don’t effect the charging quality great for travelling or when out and aboutCharges phone quick enough a little slower to recharge pack but not a major problem for me
Kentigern –
Excellent initially. Replaced FOC by seller when lightning cable started to fail at 7 months
Excellent product initially: my favourite powerbank for days out and holidays due to the built in cables, amount of charge held, and the speed of charging my iphone. Sadly the lightning cable stopped working consistently after 7 months. Pleased to report the seller replaced the power bank and the new one works fine thus far.
sue strangleman –
Great idea, tucks away the cables when no in use so no damage in handbags!
Love this! I really like the fact that I have all the connections I need on one handy gadget. I like the fact that the cables tuck onto the main frame of the charger, so nothing gets damaged. Hold charge well and has recharged two things at once with still some puff left after a full charge
Debra Marston –
A great power bank
The power bank is of good quality and charges up quite quickly.It has plenty of built in cables so you can attach other phones or devices that require a battery on the go.It’s not heavy and I like the colour of it.Has a display so that you can check its charge.Doesn’t overheat and so useful.Good value for money too.
Andrew Oliver –
The All-in-One Power Solution You Actually Need
If you’re like me, your “tech bag” is usually a nightmare of tangled cords and different wall adapters. I bought the Charmasr 10,000mAh Power Bank specifically to end that chaos, and after using it for a while, it has genuinely simplified my daily carry.The standout feature is easily the built-in cables and USB plug. It’s rare to find a battery pack that doesn’t require you to bring a separate “recharging” cable.No more cable searching. It has built-in USB-C, Micro-USB, and Lightning cables. I’ve used it to charge my iPhone, my Kindle, and my friend’s Android all at once. Built-in Wall Plug – When the power bank itself runs low, you just fold out the prongs and plug it directly into any wall outlet. No extra bricks or USB cables are needed to juice it back up. The Perfect Size – Despite having all those cables tucked into the sides, it’s still remarkably slim. It’s about the size of a smartphone, so it fits in a jacket pocket or a small bag without adding much bulk.For a 10,000mAh unit, the charging speed is impressive. It supports fast charging, so I’m not tethered to it for hours to get my phone back to a usable percentage. The LED digital display is also a huge plus it gives you an exact percentage rather than just four vague blinking lights, so you know exactly how much “gas” is left in the tank. Pros• All-in-One Design: Cables and wall plug are integrated. • Versatile: Can charge up to 5 devices simultaneously. • Travel-Friendly: Slim enough for airplanes and fits perfectly in a tech pouch.• Texture: It has a nice 3D textured finish that makes it easy to grip and less likely to slide off a table. Cons• The built-in cables are a bit short, so you have to keep your device right next to the power bank while charging.This is the ultimate grab and go charger. Whether I’m commuting to work or heading out for a weekend trip, I love the peace of mind knowing that as long as I have this one device, I have everything I need to stay powered up.
Hannah –
Highly recommend
This is my second one of these so I’ve got a back up when I forget to charge my other one. Highly recommend, these are faultless. Compact, got all the cables for multiple people to use and holds 2/3 full charges for a phone. Does take a long time to charge up to 100 but that’s understandable. Love the pale blue colour I got this time round. Had my other black one in my bag everyday so it is very durable to travel around with.
theresa –
Fantastic power bank
Fantastic power bank, brought it last year (2025) used it a few times, fully charged it and then it was used yesterday, it was still fully charged, so about 6 months of not being used and it was still 100% charged, we also love the fact that it has different connections for a range of phones, tablets etc, well worth the money, and it comes with a pouch to store it, highly recommend
Mrs. S. D. R. –
So far so good – having owned it for roughly a fortnight. I’ve had one of these before and it seems to work pretty well. Hopefully there will be no issues with it in the long run.
Celine Dergham –
Charge assez vite et jusqu’à presque 2 fois.
Yanira guerrero –
Bien
Emiel –
Erg handig, laad erg snel een lege iphone op
Kenza Dhifaoui –
انصح فيهجيد جدا جودة ممتازة سريع الشحن