Tag Archives: testing

Great AA Alkaline Battery Test – Addendum: 25mA Constant Current Tests

For those following along, they’d probably realize by now that I have left the country and are officially on holiday in the slightly-warmer-than-average-for-this-time-of-year Hong Kong. I had originally planned to make this post before I left home, but things got … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 20 – Final)

It’s Boxing Day, and while a lot of people are outside partaking in the shopping frenzy of underwhelming discounts, I’m firmly sitting at home plodding away at some data analysis to deliver this last part of the power bank endurance … Continue reading

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Great AA Alkaline Battery Test – Pt 4: Cell Physical Characteristics

After the rather interesting results in the previous section, I was curious as to who actually manufactured the cells for the lesser known brands, and whether that could be determined just by examining the physical characteristics of the cells. Given … Continue reading

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Great AA Alkaline Battery Test – Pt 3: The Results

If you’ve made it this far, congratulations, you’ve earned the right to read the results! If not, you could be doing yourself a big disservice and not understanding the true intricacies that underlie the subject of battery testing and the … Continue reading

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Great AA Alkaline Battery Test – Pt 2: The Contenders

Welcome to the second installment in the Great AA Alkaline Battery Test series, where the contenders for testing are presented. This post is one of the most image heavy posts I have ever delivered, so apologies if my webserver falls … Continue reading

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Great AA Alkaline Battery Test – Pt 1: Battery Testing Fundamentals

Regular readers would probably know that I have a love of batteries, and their associated test equipment. Maybe it was the fact that they were expensive, but pervasive, and my enjoyment as a child relied quite heavily on batteries to … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 19)

This is one of those ongoing experiments which just seems to keep dragging on and on. Initially, I thought I’d torture a relatively unknown power bank by cycling it over and over on the test rig, expecting to see it … Continue reading

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Video Compression: x264 CRF Generational Loss Testing

Having been involved in some way with video capture and editing from the late 90’s onwards, something we have always been taught is to avoid lossy formats for capture and editing due to the problem of generational loss. Put simply, … Continue reading

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Telstra FaxStream TestFax Professional (aka FOLDS-B) Test

A while back, I did a number of experiments involving VoIP and faxing, which made use of Telstra’s FOLDS test. Because of a number of intricacies, voice-band data and VoIP generally do not (reliably) work together unless configured very carefully … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 18)

This is one of my ongoing experiments to see how a rather no name power bank ages with charge/discharge cycles, and it’s been quite surprising all the way. This is the 18th installment, meaning that we have reached a total … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 17)

In this long ongoing experiment, I attempt to see just how a “no name” power bank stands up to repeated cycling. My expectations were fairly low at the outset, but it seems I’ve been proved completely wrong, as now I’m … Continue reading

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Video Codec Tests: x264 CRF vs enc_qsv CQ vs x265 CRF in Handbrake 0.10.5

After my earlier attempt to do some codec comparisons, I realized that something went grossly wrong with the “difficult case” clip. Specifically, it was an interlaced video clip which I wanted to use, and I naturally assumed that interlaced encoding … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 16)

As far as experiments go, this is probably the longest and least exciting experiments of them all. It started years ago when I wanted to see just how long some randomly branded Chinese lithium-polymer cell based power bank would last, … Continue reading

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Video Compression Testing: x264 vs x265 CRF in Handbrake 0.10.5

Having played around with video since I had a few multimedia CD-ROMs and a BT878-based TV tuner card, video compression is one area that has amazed me. I watched as early “simple” compression efforts such as Cinepak and Indeo bought … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 15)

Welcome to the fifteenth installment of this relatively unexciting experiment to see how long a modestly sized “unknown-name” Chinese Li-Poly power bank would last under continual cycling. Those who have been following along will know just what this means – … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 14)

Almost two years ago, I started an experiment to see just how well a random no-name power bank would survive under repeated cycling, and to chart its “demise”. While I had some notion that it might have failed early due … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 13)

This is one of my longest running experiments – an experiment to see how well one particular power bank handles repetitive cycling, just to see how the lithium polymer cell and the electronics handle cycles. This is the 13th part … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 12)

This is another quick update on my power-bank torture experiment that’s been ongoing since September 2014. Another 50 cycles have been accrued, for a total of 600 since the experiment began, or 615 cycles since the power bank was manufactured. … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 11)

It’s been ages since I last posted about the fate of this power bank. When I last posted, we were up to 500 cycles in the experiment, and 516 in total from new, and the unit was doing very well. … Continue reading

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Review: Meizu HD50 Hi-Fi On-Ear Headphones

When it comes to portable audio, users are increasingly enjoying their music on-the-go from portable music players and their mobile phones. While some of these products are bundled with included earbuds which seem to serve some people well enough, an … Continue reading

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Q&A: How Fast are 2X Floppy Drives in Reality?

This post comes about because of a question from Matson on a very early post of mine about USB Floppy Drives. He wants to know how fast 2x drives are in reality, as there are no hard numbers floating about. … Continue reading

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Teardown, Accuracy Testing: LP7663 Kill-a-Watt-clone Power Usage Meter

Sometimes when I mention an idea, I will quickly become fixated on it and try to flesh it out as best as I can. Just yesterday, I was mentioning about how low-cost power usage meters can mislead, and today, I’m … Continue reading

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Experiment: LG D686 Battery Charging Investigation

Earlier, in my article about modifying a USB charger doctor as a USB current shunt, I elaborated on the possibility of microcycling occurring in the battery of my mobile phone due to the irregular current profile after the phone had … Continue reading

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Experiment: ZIP Defect Lists & Software-Enabled Write Protection

With my last post testing the write-protection with just one cartridge, we didn’t demonstrate any PLIST changes. While I took the GLIST changes as indicating the lists being both “fluid”, more concrete proof was desired in case one of the … Continue reading

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Tech Flashback: More ZIP Defect Tests & Trouble In Paradise Utility

Once you get started on something, often times, you realize there are things still left to be done. Indeed, this post comes about because of my previous experiments inspired by Matson’s comments, and this time, he came up with another … Continue reading

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Review: Orico USB 3.0 5-bay RAID HDD Enclosure (9558RU3) – Part 2

Welcome to the second part of the review on the Orico USB 3.0 5-bay RAID HDD Enclosure where we continue with actual performance tests and usage experiences. Performance Testing The drive itself presented as a single drive as I was … Continue reading

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Review: Orico USB 3.0 5-bay RAID HDD Enclosure (9558RU3) – Part 1

If you ever do anything that involves high-rate data acquisition, a copious amount of relatively high speed storage is often a costly requirement. Having just recently upgraded my 4x4Tb array to 4x6Tb, this displaced four drives for use elsewhere. Two … Continue reading

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Experiment: Circular Quay Timelapse (14 Aug 15)

Around three weeks ago, on a Friday, I was feeling a little bored at home, so I decided to take advantage of the good weather and head out to do some experimental time-lapse photography. After all, I did have a … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 10)

Experiments never stop around here, and I’m pleased to present the tenth installment in this series of posts about the capacity degradation of a lithium-polymer based power bank as a function of charge-discharge cycle. This tenth part represents another increase … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 9)

Posts have been getting a little thin from time to time because of the crazy amount of work I’ve got, and also the fact that I’ve spent the past week or so battling numerous illnesses. Anyway, today I’ve finally felt … Continue reading

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