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59 Posted 27 December 2022
Charmast 30000mAh 20W Powerbank - £26.39 sold by Charmast UK @ Amazon
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Charmast Power Bank 30000mAh, 20W Power Delivery QC 3.0 USB C Battery Pack Quick Charge Portable Charger 2 Inputs & 3 Outputs with LED Display Compatible with Samsung Huawei iPhone iPad etc.
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- 🌟【30000mAh High Capacity】The enormous 30000mAh capacity power bank charges iPhone 12/11 about 6.5 times, Samsung Galaxy S9/S10 about 5.5 times.
- 🌟【QC 3.0 and PD Quick Charge】With 20W Power Delivery 3.0 USB C port, plus dual QC 3.0 USB outputs, this battery back provides 4 times faster than regular charging on the market. Note: If using the fast charging, the cables and the devices must support QC & PD.
- 🌟【2 Inputs & 3 iSmart Outputs】 Supports 2 high-speed charging input ports, Micro USB / Type-C and 3 USB Smart identification output ports (1 USB C and 2 USB A). Optional 3 outputs can charges up to 3 devices simultaneously. 2 inputs for your different charging needs.
- 🌟【LED Display】With intelligent LED display can clearly understand the battery remaining power to prevent it from running out of power.
- 🌟【Package Contents】 Charmast 30000mAh power bank (17.1 * 7.15 * 2.5cm), USB C-USB A Cable (20cm), 1 * Mesh Pouch; Warranty Card; Charmast certificate.
More details at AmazonCommunity Updates
Edited by innocent, 27 December 2022
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59 Comments
sorted byWh = (mAh x V) / 1000. The problem is that Charmast doesn't mention the voltage anywhere on the product page to be able to calculate this. Assuming it is 5V, then the Wh number is 150. Usually, this is also mentioned on the powerbank (my 20000 Iniu one says 74).
Ryan Air allows up to 160, BA is 100 (with approval required if it is more than that but up to 160 only). easyJet seems to allow up to 160. As always, please ask the airline before booking tickets.
For me, there's often a bit too much obsessing about exactly how quick these things will charge and what the exact capacity is.
It will vary in every single use case, so all I want to be assured of, is that you're getting roughly the amount of charges it says you will and that you can get a decent amount of juice in your phone, relatively quickly.
By way of experiment I just plugged it in to my Huawei P30 pro which I brought with me for Christmas to the family house which doesn't have plugs near the beds. It's just topped up from 18% to 44% in 21 mins from the USB-A connector with a generic A-C cable. So in real world terms that's about a 25% top up in less than half an hour and that's exactly what I want from a PB. Just give me enough juice, relatively quickly, to power my GPS, Strava, etc if it's lower than I would like just before I head off.
The battery went from 66% to 62% on the read out. I've been topping up like this over the last week from fully charged. The USB-C output is much quicker.
It's sturdy (and heavy) and loses very little power whilst powered off.
Doesn't do anything hugely exciting but it's been rock solid for me so far and charges my portable devices absolutely fine. (edited)
I've seen it at £20 in the past.
However this brand does buy fake Amazon reviews
I could power my car with it