Category Archives: Power Bank

Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 4)

In this ongoing experiment which started back in late September here, I’ve been diligently putting a powerbank through controlled charge-discharge cycling while measuring the effective capacity based on a methodology I developed to measure the real capacity of power banks. … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 3)

This is a rather long-term experiment that started a while ago to try and graph the aging of a power bank’s Lithium Polymer cell. Up to the last part, a total of 100 cycles was run for the experiment, which … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 2)

The endurance test for this power bank started back here, with the last update providing the data for the first 50 test runs (total of 66 cycles since new). Now, another 50 cycles have been completed, for a total of … Continue reading

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Review, Teardown: P.Power (or Generic Unbranded) 12000mAh Power Bank

Back in January 2013 (which seems a long time ago), before I started all of this powerbank testing, as someone who was none-the-wiser, I bought one of my friends a pair of “generic” unbranded power banks. The cost was about … Continue reading

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Review, Teardown: *Fake* Xiaomi (Mi) NDY-02-AD Silver 10400mAh Power Bank

It might seem that I’ve been singing the praises of Xiaomi/Mi power banks lately, and that’s because they’re very good products. However, the journey to obtain the product is often fraught with more difficulty than expected. In my case, when … Continue reading

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Review, Teardown: Xiaomi (Mi) NDY-02-AD Gold 10400mAh Power Bank

This post comes to you thanks to a generous reader from Germany (thanks Tobias!), who decided to contribute a power bank for testing. Unfortunately, the reader didn’t tell me what it was before it was dispatched, and it turns out … Continue reading

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Review, Teardown: Xiaomi (Mi) NDY-02-AD Silver 10400mAh Power Bank

On an earlier post about power bank endurance and modification, Joy Test made a recommendation in the comments for me to test a Xiaomi, otherwise known as Mi, branded power bank. This is a Chinese manufacturer, which is most widely … Continue reading

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Power Bank Endurance Test – Hillo Power Jin Gangxia

After the trouble with endurance of the Orzly power bank which utilized Li-Poly cells of unknown reputation, I became quite suspicious of many unbranded or unknown Li-Poly based power banks. Unfortunately, as endurance tests require manual cycling of power banks, … Continue reading

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Further Investigation: Power Bank Endurance Issues and Modification

Through many tests of power banks, there seems to be many metrics by which they can be judged and their performance determined. While I have focused on capacity as the first metric, and determined some power banks to be outright … Continue reading

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Exploration: Improving Power Bank Ripple Performance

Those who have been following along in my power bank testing articles will note that the vast majority that I have looked at have hardly been impressive. Some things seem rather fixed – for example, the voltage regulation which is … Continue reading

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Review, Teardown: World Solution Technology (WST) A28 8000mAh Power Bank

This will be the last of a long series of power bank related posts, at least for a while. You have no idea how glad I am, since testing easily will drive you nuts. Without further ado, the last power … Continue reading

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Review, Teardown: Wonderful Life Because of You 8400mAh(?) Power Bank

Just like the tree that keeps on giving, the power bank rabbit hole goes quite deep. This one is a pretty “generic” looking set, to the point that I didn’t know what to call it. No clear indication of capacity … Continue reading

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Review, Teardown: Power on the go! 6000mAh Power Bank

If you haven’t already guessed it, testing power banks gets a little tiring after a while. But it doesn’t matter, because I might as well do it while I still have some motivation to keep going – this one’s thanks … Continue reading

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Review, Teardown: Lanu Power LP-401B 4400mAh Power Bank

Here comes another power bank thanks to an anonymous donor. This particular power bank is a Lanu Power LP-401B 4400mAh power bank, packaged in the same package with the words “Quality Assurance” as the LP-406B reviewed earlier. As a result, … Continue reading

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Review, Teardown: Moko Technology MK555 8000mAh Power Bank

Thanks to the anonymous donor, here’s another power bank subjected to the “Gough” treatment. This one, like many others, comes in a very “generic” colour cardboard box packaging with a clear plastic window. The power bank and its included pouch … Continue reading

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Review, Teardown: “Quality Assurance” LP-406B 5200mAh White Power Bank

The next cab off the rank is this relatively generic looking power bank. Packed in a cardboard glossy colour box with window, there’s no trace of any manufacturer on it – merely the words “quality assurance”. I suppose I’ll use … Continue reading

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Review, Teardown: Lipstick Battery LED 3000mAh Silver Power Bank

The power bank testing and reviewing continues, courtesy of the anonymous donor. Testing and reviewing is a fairly involved process, easily taking up two weeks to complete. It is hoped that by testing these “anonymously” supplied power banks, we would … Continue reading

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Teardown & Test: Hillo Power Jin Gangxia Series Power Bank

Another power bank that has come in for testing is this one from Hillo Power. It came from a very nice brown-ish cardboard box. Unfortunately, the capacity is unknown. The box is mostly marked in Chinese except for the side … Continue reading

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Tested: Two Naked Power Bank Internals (5600mAh, 4400mAh)

In some of my previous power bank postings, people have expressed interest in knowing which power banks are good and which power banks aren’t. Further to that, I did invite readers to donate power banks for testing. Thanks to one … Continue reading

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Powerbank Testing: A New Test Rig & Powerbank Endurance

It seems like powerbanks are the “essential” product for any digital road-warrior, and reviews of power banks on this site has seen wide readership. While initially concerned with capacity alone, I have also branched out to testing the level of … Continue reading

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Exposed: Power Bank Ripple – Devices at Risk?

One of the most popular articles on my site are those related to power banks – specifically, those related to the eBay unbranded 5000mAh and 30,000mAh power banks, as well as the Comsol 11000mAh, PowerMonkey 3500mAh and the Orzly 4050mAh … Continue reading

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Review, Teardown: Orzly Portable Power Bank (Black) 4050mAh

Update: It appears that there may be problems with endurance of the batteries used within this power bank. As a result, I can not recommend its purchase anymore. UPDATE 2: Further investigation of the endurance problem confirms rapid degradation in … Continue reading

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Review & Testing: Powertraveller Powermonkey Discovery 3500mAh Power Bank

As part of the last “gift voucher that needed spending”, I picked up a Powertraveller Powermonkey Discovery 3500mAh power bank. I didn’t really need one, but nothing else really interested me from the particular shop (which will go unnamed). The … Continue reading

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Review & Testing: Comsol 11000mAh Dual Output Power Bank

This post actually came about because I was chatting with Robert about a few electronics and computing related things when he mentioned that he owned a power bank himself. Knowing from past experience that some power banks are really not … Continue reading

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Follow-up: USB Power Bank Tested and Repacked (5000mAh, 30000mAh)

I did some quick teardowns of the 5000mAh and 30000mAh power banks previously, and I found that the 5000mAh power bank seemed to be genuine, but the 30000mAh power bank is a bit unknown. One reader reported disappointing performance from … Continue reading

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Review: Unbranded 30000mAh 2 Port USB Power Bank

UPDATED: Please also see follow-up here. Updated AGAIN: Need some more persuading? See Ripple Analysis here. You may be putting your devices at risk! Earlier, I tore apart one of my old-faithful USB battery packs. In search of some more … Continue reading

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Teardown: Unbranded 5000mAh USB Charger Pack/Power Bank

It’s a common hesitation – does my phone or tablet have enough charge to last the day? Quite inevitably, power users tend to find that the latest and greatest still just don’t have enough for the exceptionally long days. As … Continue reading

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