The first power bank looks really nice, but I will take it a bit easy with ordering more stuff for review. I already have a lot of items on the way and in queue.
These power banks are definitely on the expensive side, I must admit I would like one. I am not going to buy one this month and probably not next month either, I have way to much “junk” in queue and I have used a bit much money recently (Bench DMM’s and other test equipment are not cheap).
But when my current queue is running low I may return to that list again and maybe order one of them.
That looks exactly like the Prufen Smart Cable from last year’s KickStarter project. There is a slightly updated version of it with auto-timer off (I think that’s the main difference of the revised version released this year). I think it’s available only in Singapore or ordered online from there (I believe the creator is a Singaporean).
I have that item. It’s not a QC2.0/3.0 converter, I think they term it as “QC2.0/3.0 trigger”.
If connected to a USB charger/adapter that only outputs 5v, then placing the trigger between the USB meter, it will only register the same 5v.
It only “triggers” QC2 or QC3 modes if the charger/adapter supports QC2/3. I tried it on a Mi PLM05ZM (Mi 20000mAh v2 power bank) and also a TronSmart W3PTA (so far those are my current chargers that support QC2/3). The left button on the picture changes between QC2 (5-9-12v) and QC3 (5-20v continuous?) mode. While the middle and right button is for “up” and “down” (if QC2, that triggers 5v -> 9v -> 12v; if QC3, I think it steps the voltage up/down). Since I only have 12v QuickCharge support for my 2 QC chargers, I haven’t tested the trigger for 20v (QC3 has 20v, but very few support it at the moment).
I saw a video by Mr. DodgeReviews of a QC2/3 converter which seems to actually convert the voltage from 5v to 9v to 12v (even when used with a regular USB charger that outputs only 5v), but it’s another item…
I think he means my (very eary) vid on the Juwei J7-I, same thing that HKJ has reviewed.
[quote=HKJ]
About €50 in ebay including shipping, no match on google shopping.
[/quote]
Way too high a price for such limited functionality.
I could spend that kind of money on a YZXStudio or ZKEtech meter that offers a lot more for the money, but not on this.
The Prufen Smart Cable (my guess is it was licensed to “intos.de” above) price as indicated here: http://prufen.com/shop/ is US$19.90 + $6.90 shipping (flat rate for most countries I think).
Banggood also has this exact same model at a slightly lower price (due to flash deal/promo)
I think in Amazon, it is usually associated with the ‘DROK’ brand of meters, but I’m can’t be sure which one of the DROK models corresponds to this highest model.
A few USB PD modules that look interesting, to me, at least.
These two both have and DC barrel-jack input and a USB PD USB-C output. They advertise power capabilities over the USB port that are appropriate to the input voltage, and buck it down to what the connected device requests. It looks like it can do 60W or better. Useful for re-using DC power bricks or a DIY USB-PD battery pack.
This one basically just does protocol conversion between QuickCharge 2 / 3 and USB-PD and relies on the QuickCharge supply to provide the requested output voltage:
I'm not sure how practical it is to test them, given the complexities of USB-PD, and the value of the equipment at risk when powered by this sort of thing, but they are interesting, and potentially very useful.