DULLA 20000mAh Portable Charger - Ultra High Capacity Power Bank (3.4A Output, Dual ports, 2.1A Input, Li-polymer Battery Banks) for iPhone, iPad & Samsung Galaxy & More (gold)

Great price and the product has worked really well for me so far. It's a little heavy but a good size, slightly bigger than my mobile itself so easily portable. I really like the design too and the quality seems really good. Just a word of warning - you can't use it to charge your laptop, you can only charge up the charger via your laptop. I'm not good with tec and didn't realise this before buying so was slightly disappointed when I tried to use it with my laptop!

Yes of course its not tiny as it holds enough power to charge your iPhone 7 times! It’s a bit bigger and thicker than my iPhone 7 but I carry it around happily every day. It feels sturdy and solid, looks pretty beautiful and has excellent performance. What more could we ask for?! Fab product and highly recommended

Does what it should but is heavier that the previous battery pack we had even though it’s the same power.

Had this for a while now and it never runs out unexpectedly or had any issues. Takes a while to charge it up but great for long journeys, when plugs aren’t easily accessible for a while.

Seller affirms that this powerbank has 20000mAh and 74Wh/3.7V.That is not true!!!You could make sure of it just by looking inside of this powerbank where we could find two parallel connected 3.7V batteries with capacity 9000mAh 33.3Wh each. By easy arithmetics we get 9000mAh+9000mAh=18000mAh BUT NOT 20000mAh!!! and 33.3Wh+33.3Wh=66.6Wh BUT NOT 74Wh.Furthermore incide in electronics uced IC IP5306 which could provide ONLY 2.4A on all outputs SUMMARY BUT NOT 3.4A as in description. Thats why many users simply burned this IC trying to connect to USB outputs more than 2.4A summary load.

It's too heavy and charges really slow.

Honestly, it is amazing. The quality of the product is very good, not only this but the company are great. I had a problem and they solved it for me with in a day. The battery has the largest capacity for the best price. I Would recommend greatly.

It started off brilliant, keeping my phone at 100% while playing PoGo and using Calcy IV at the same time. There was no damage done to it, I didn't drop it on the floor or anything of the like, so I don't know why it's no longer keeping my phone charged at all. My phone battery is now going down, albeit much slower than usual, but it's still going down. I keep the Dulla fully charged and changed the cable, as the supplied cable kept losing connection, yet even with a brand new cable, my phone is no longer being kept fully charged and so I'm gonna have to return this because it's not doing the job.It's a shame as it started brilliant and within just a few days, this is happening and it's such a shame.