A bit of a Review – Kit: High Power 20,800 mAh Dual USB Emergency Charger

So.  I don’t do this sort of thing very often.  Never, in fact.

I was asked to review a bit of tech on my blog here.  Specifically, MobileZap saw my blog and asked me to review “a good bit of kit” – a 20,800 mAh USB Emergency Charter.  I said sure – as long as you know it will be an honest review.  To their credit they were happy with that proviso.

Unfortunately, this leaves me with a bit of a bind – at the time of writing, at least, I understand I get to keep the bit of kit they sent me, which is a nice fillip.  Sort of repays some of the blog expenses.  But, if I write a review slamming the thing, they might ask for it back (sending these things back in Australia actually presents a problem – see later).  But if I write a review praising the thing, my legion of blog-fans (hi Mum!) will accuse me of being a bigger sell out than Metallica.  So, I’m going to stick with the honest review and see where that takes us.

Before we start

Obviously, I’ve written this review at the request of MobileZap.  Who I’ve never heard from before, and may never hear from again :).   My experience was about usual.  The item was packed well and was despatched reasonably quickly – about a week to arrive, I think.

Still, I googled the name. If you read the online reviews, there’s a bit of a mixed-bag of experiences with this online retailer.  On ProductReview at the moment they’re about 3.2 stars out of 5.  The negative posts relate to non-delivery or late-delivery of items that, though were marked as in-stock, weren’t.  Overall, these comments seem in line with a lot of these electronic online retailers.

I suppose I will temper that by saying that someone who feels gypped by a product will tell everyone they see (including ProductReview) whilst someone who ‘gets what they expected’ rarely does put up a positive comment.  In that context the comments and ratings on ProductReview are at least about average.  Still, you can get this product somewhere else if it takes your fancy, I’m sure.  They do have a good range at MobileZap, including iPad Air accessories (something they seem particularly proud of on their website).

Let’s take a look at this Emergency Charger

So, what is an Emergency Charger?  On the MobileZap website it looks like this:

And frankly, when I opened up the package at an Australia Post parcel locker (great service by the way), this is what I had.  A fairly heavy, smooth shiny black device.  By heavy, I mean it’s got a good heft about it.  It weighs 443 grams – which is pretty much a pound (sorry, I’m a metric baby).  More than you’d like to put in a pocket but perfectly portable in a man-bag or such like.

So.  To the review.  What matters?  Portability (weight and power source), looks (style), and fit-for-purpose (does it do what it says on the tin?).  In the traditional manner, I’ll talk about its pros and cons, as well as overall value, only after that discussion.


Upon opening, there’s a USB cable with a connector on one end, three connectors that fit onto the connector, and the charger itself.  That’s it.

Regarding portability – that weight is pretty much fine for what it is.  Yes it’s a pound, give or take, but it’s rectangular and about two centimetres high.  If you were out and about with a shoulder bag you won’t notice it too much – just slip it in there.  It won’t go in your pocket but it’s quite portable.  I believe there are smaller options if that matters to you.

Regarding the power source – by which I mean, can you power it up anywhere?  The answer is pretty much yes.  It’s USB-powered (which takes forever to charge up) so you can trickle charge it from your laptop or a standard USB charger (one of those ones that your mobile phone and/or tablet probably uses.  This good bit of kit does come with an adapter that connects to the USB for charging it up – and you’ll need to keep track of them.  The three adapters are a Micro USB, Mini USB and a 30 pin (old-style Apple) charging adapters.  You could use any USB cable with those adapters permanently affixed, I’ll warrant.  It certainly works for an iPad with a Lightning connector – just use your original cable.

I’d still like it if the product included a small bag or something to keep these adapters together.  Otherwise there will be tears at charging time.  I just put mine in a small zip lock bag, as shown in Exhibit A:

For some reason my photo’s not quite as good as MobileZap’s.  Still, from this photo you can also get an idea of how big it is – for comparison I’ve put a AA battery there.  It’s about 17cm long x 7cm wide x 2cm high.  While we’re talking about things that are missing from the case, it would be nice if it had its own charger.  Yes, they’re a dime a dozen but a dedicated one would be nice.  Particularly I’ve found that if I use a low-amp phone charger it takes ages (like, 24 hours) to charge this sucker up.  But you can just charge it using pretty much any USB port, and without the charger I guess that keeps the costs down and it’s one less thing to lose.  Buy one on ebay if you must.

Overall this charger is really quite portable.  If it is too hefty, there are smaller ones.


Looks-wise – hmm.  I’m an accountant, so not the harbinger of high fashion.  It’s basic black, so it’s unobtrusive.  Easily lost at the bottom of a dark bag I guess, but realistically that’s not an issue.  It isn’t garish and it’s pretty unobtrusive.  The finish is fine, there’s no pointy bits to catch on anything, and the joins are visible but no gaps.  It’s built well and feels like it’s built well.  That heft gives it a nice feeling of quality, and in an emergency you could use it to fend off an attacker in a dark alley – as it’s shiny black, they’ll never know what hit them.

It seems to be a fairly generic power-kit made in China, so there are no obtrusive logos.  It simply has a power-specifications label on the underside of the item.


And now the biggie – does it do what it says on the tin?

Let’s be frank.  I’d never gone looking for such a thing, partly because I didn’t know they existed, and partly because I didn’t know I needed it.  I do have battery cases that my phone clips into – it then goes from being Slim & Fashionable Phone of 2012 (HTC One) to DorkPad.  Those power cases from Mugen are pretty handy, but this is handier in more situations.  It really does shine as a portable charger for someone on the go, particularly with the ludicrously poor battery life phones still have.  I didn’t take it with me one afternoon and after an hour or two of Facebooking and texting back-and-forth, I wished I had.  My phone went dead, and that’s unhappy-time. It’s one of those life-skills of the 21st century – keep your phone charged.

The battery is mammoth.  Let me get my rave on a bit.  It has 20,800 mAh.  My One XL has 1,800 mAh.  I literally charged this pack up and one week later was still charging my phone from it.  I charged the phone four times from low power (<20%) to 100%, attached it several times when I wanted a perma-wifi hotspot, and the charger was still half-charged.  My biggest gripe about my phone is its lack of battery life – and if I use it for a wifi spot when I am out with my laptop or ipad, I can count on needing to charge it up again pretty soon.  Sigh.

I’ll note that the claim on MobileZap’s website is ’12 recharges of an iPhone 5S’ (which has 1560 mAh).  I think 12 is a bit optimistic (because some of the energy will be lost as heat and battery discharge), but maybe you’d get there.

With this charger I would be able to have literally hours of wifi hot spot (just got to watch that Telstra charge for going over my 1.5gb data limit).

I should note that there are two ‘out’ USB ports.  One is 5v, 2.1amps (that’ll be for your tablets and such), and the other is 5v, 1 amp (for your phone).  There’s also a button on the top – press it, and presto, you’re charging the connected device.  You can charge two things at once this way (a tablet and a phone).  Don’t try and charge a phone from the 2.1amp socket, though – my phone didn’t like that very much.

I guess that this ‘rave’ does highlight a problem with this charger.  It’s big – and because it’s big, I have a ridiculous amount of power to keep my phone running.  Perhaps I’d prefer to have something slightly smaller with less weight.

Still and all.   I can charge my phone and/or ipad wherever I am, without needing to find a power point (useful for international as well as inter-state travel).  The number of times I’ve been inter-state and at the end of the day discovered I’ve got very little charge left.  And since this will allow me to use the wifi hotspot with my laptop without worrying about having no phone, the charger is a definite plus.  It’s definitely fit for purpose.

I can think of a number of good applications for this.  For instance – in the car with children running out of power for devices (yes I can charge from the cigarette lighter but that’s not always that reliable). On the bus while playing Angry Birds when coming home from uni. Or, while camping.  Or, it can be slipped into my motorcycle pack so that if I do have a breakdown I can charge up my phone.

Don’t laugh – it happens!

A good buy?

Or, in a more mundane manner I can travel around the place and just use my phone with impunity – unless I’m away from powerpoints for several days, I’m good to go.

So.  Is it worth it?  At the time of writing, this ‘good bit of kit’ is up for $68.49 on the MobileZap website.  Shipping is $4.50 for standard slow-boat-from-China all the way up to $17.95 for standard and $24.95 for express delivery.  Still the good side of $100 (just).  I’d say it’s well worth it.  I’ve spent more than that in a taxi for a trip away.

So if you are the sort of person who is regularly away from your desk, this could be your new best friend.  If charging devices is not a challenge for you, maybe it’s not worth it.  I think that for me it probably is good value, even weighing up the pros and cons.


  • Good weight, very portable
  • Looks the goods – unobtrusive and professional
  • Definitely fit for purpose – with the caveats noted below.  You should get a few decent charge–from-empty charges for your phone at least, and you can use it to power your phone while it’s acting as a wifi hotspot without worrying about losing power.


  • Those little connector bits should have a little bag to keep them all together – maybe they do in standard orders, but mine didn’t.  The lack of a Lightning connector seems to be an oversight.
  • Similarly – a dedicated charger would be a nice-to-have
  • Precisely because it’s so big, maybe you’d prefer a smaller and less weighty version.  Still it’s pretty light.


  • For < $100, it’s right proper worth it, if you’re away from a power source regularly.

Overall I hope you found this review interesting.  The charger is certainly a ‘good bit of kit’, with a few relatively minor issues.


Now, there needs to be a post-script to this review, and this relates to the issue of lithium batteries with Australia Post. I googled the product ID and as best I can tell this thing has a lithium battery in it – which is what I would expect.

It seems to be well-documented but you cannot legally send a lithium battery through Australia Post.  Mobile Zap can send you a lithium battery by post, because it’s being sent from China and is thus under their rules.  China doesn’t seem to consider it a dangerous good.  So, Australia Post will deliver the package from China, but they won’t let you send it back.  You have to use a specialist  courier – who are always going to be more expensive.

Yes it’s a silly situation, but there it is.  The upshot is, there is a problem with the charger, or you want your money back, you’re going to have a bad time.  Of course you can do what everyone does, which is go outside the post office and declare it as non-dangerous.  Australia Post can’t open the parcel to inspect it – so they rely on your declaration.  If that’s what you do, that’s between you and your moral code. Legally, you can’t send it back.

This issue seems to be a result of international cooperation gone bad – frankly I can’t understand how it’s not safe to send a battery by post when I can carry it on-board as a passenger.  But there you go.

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A letter to my blog

Dear Blog

It has been some time since we last spoke. To let you know, I have taken up motorcycling. It is mostly an attractive pastime – except I know that on Saturday we spent four hours by the side of the road trying to fix a motorbike (the 2.5 year old one, not the 30 year old one – being mine). A picture of my motorcycle is shown below. It is a 1980 Honda CX500 and it’s been very reliable overall, and lots of fun to pull it altogether. Since the photo below was taken I have taken off the Ventura Gearsack at the back, and replaced the indicators with standard ones. I’ll find a new photo to send you soon.

Last week I was in Wellington – here’s a bad photo of me and Wellington’s parliament house from that trip:

I was over there to speak to Audit New Zealand as part of my phd research. If you’re not careful, I’ll tell you all about my phd… oh wait, I already did that.

Finally, today it was my pleasure to speak to an audit delegation from China with my Supervisor, Professor Peter Green. I’m sure you’re glad I have no photos of that experience – I will say though it was interesting presenting a quite technical presentation to a non-English speaking audience and waiting for the interpreter to translate. I could tell those of the delegation that could speak English – they laughed at my jokes before the interpreter had translated them.

Oh, and I got to go to the Ashes last week, for the opening day of the test. Here’s a video of Peter Siddle getting his hat trick (caution: strong language – not mine!):

That’s something for the bucket list – seeing a hat trick live in the Ashes at the Gabba.


Micheal Axelsen

PS: I have a mammoth blog post I’ll copy over to here that I wrote for CPA Australia. My favourite visual metaphor: “There are dangers to think about though when it comes to telecommuting. Maybe not the same dangers as skydiving into an apiary wearing only beachwear and honey-scented deodorant, but there are challenges to think about such as team cohesion, security, and that all-elusive ‘work-life balance’.”

Analogue Organiser in a digital world

Yes I am still here and yes I still blog.

It’s been very busy since I passed confirmation; in the past month I’ve been to Perth, Canberra, Sydney, Brisbane (although that’s my home town) and Melbourne – all in the name of furthering my research.

I thought I’d document what I was doing for my organiser these days. I find my most personally productive time is when I keep lists of things and just keep crossing them off. Earlier in the year I had a to-do list book that I lived and died by – and that was very good. I was very productive, and it was just as well as I had to be.

However the book was a bit unwieldy. So I borrowed an idea from teh internetz and started to keep my to-dos on index cards. Yes it’s scratchy, yes it’s lots of pieces of paper and manually rewriting things, but it forces me to engage with my task list and deal with it instead of copy-dumping and getting 300 things that I am never going to do on it.

So let’s take a look at my analogue solution:

Notice how I bought a 2010 leatherette diary for about $10 and tossed away the ‘diary’ bit. A rubber band keeps everything in place.

In this photo you can see how I cleverly laminated my business card into the inside pocket (OK, it’s covered by sticky tape). In the pockets are yellow index cards (7 x 10cm or so). Yellow index cards are for projects, which is where tasks go when they aren’t scheduled for a specific bringup date. These cards go in the middle of the pile (there’s a someday/maybe card, an errands card, a reference card with some coded PINs – not financial ones!). The white cards are the bringup cards by date order, and I just write on a day when I need to do a task. When that day is done I cross items off the list or move it to the next card (or bringup date). As I have spare white cards I can do this wherever I like.

A benefit of analogue is no boot up time!

When I’ve finished with the tasks (they’re ‘completed’, ‘abandoned’, ‘delegated’ or ‘moved to another list’) I can tick both sides of the card and move it to the back of the pile. Every week I remove the previous week -1’s cards and put them in an index card holder. That way I have an analogue record of everything I’ve done and when I did it, and I have the previous week’s record of tasks done easily at hand – the prior work is all filed away chronologically. As project cards fill up or get completed, they go into the index box as well – alphabetically and by date completed.

The bulldog clip keeps the cards all together, and the benefit is I can have my pencil easily tucked away. Nobody’s laughed at this arrangement yet, at least not as much as they laugh when they see me reading Twilight…

In a pinch I can always take notes with a few of the index cards – they’re only a few dollars for 250 or so. So an instant folio.

The practice I am working on (but not being very successful at) is reviewing the buff index cards for my projects once a week and assigning them to bringups so I don’t forget them. But it’s getting better.

I have tried Thinking Rock quite a bit over the years, and it’s very good for reporting – excellent – and portability. However it encourages me to fiddle, because there’s so much tweaking to be done. And frankly I need to just do stuff. I don’t need more delaying tactics.

So what I use is a bastardisation of GTD, sure, but it generally works for me. However, it does tend to make you focus on the adrenaline rush of crossing something off the list rather than doing the important stuff, but at least stuff is being done and it usually makes it to a list if it’s important in my case. I still find that every now and again you have to ignore the to-dos and focus on the ‘big picture’ stuff if you want to achieve anything, so I try and schedule a block of the day to a major project (or even a whole day) and don’t do anything bar the barest minimum administrivia that I need to do.

So, that’s my blog post on how I keep my to-dos. Riveting, ain’t it.