Powerbanks tested with DHO800/900 - Page 1
Forum section: electronics / testgear

author: Proxy64
author_rank: Regular Contributor
timestamp: January 06, 2024, 07:16:00 am
content: Powerbanks tested with DHO800/900It could be interesting to share our experiences with DHO800/900 powered by a powerbank.I begin by a failed !Anker 737 24,000mAh (powercore 24k) FAILED !This powerbank is well rated on many reviews, but sadly my Rigol DHO804 powerred by this powerbank does not complete boot correctly. Yes it power up and begin to boot, but failed to run the app, something wrong happend at about 30s, just when the power needed grow up, from about 12-18W to more than 30W.Tested with the provided 140W cable and many others.When I have a moment I would use the PD listener function of the FNB58 to investigate.But for now my workaround, is to use the FNB58 to trigger 15V/3A, it works as this.Autonomy tested with a load of 37W 2h15min (in fact the average load being less than 37W)This powerbankFNB58 PD trigger functionInterresting to note, that 12V is missing on the powerbank datasheet but in fact it is available

author: Silver_Is_Money
author_rank: Regular Contributor
timestamp: January 06, 2024, 01:58:41 pm
content: Has anyone come across a powerbank that fully works without issue? What is the requirement?

author: Proxy64
author_rank: Regular Contributor
timestamp: January 08, 2024, 04:34:52 am
content: Here result of the PD listener.Just plug the power supply (power led green then red, auto boot off).Provided LiteON adaptorAnker 737, there is one more option (6. programmable power source) it ask for this one !

author: Silver_Is_Money
author_rank: Regular Contributor
timestamp: January 08, 2024, 03:41:46 pm
content: Quote from: Proxy64 on January 08, 2024, 04:34:52 amSo the Anker 737 will work. Correct?

author: idolclub
author_rank: Regular Contributor
timestamp: January 08, 2024, 06:12:03 pm
content: Rigol DHO800 / 900 can work with ZMI PowerPack No. 20 Model QB826G (210W / 25000mAh).

author: zrq
author_rank: Frequent Contributor
timestamp: January 08, 2024, 06:24:30 pm
content: My several years old Xiaomi powerbank 3 20000 mAh works with the DHO914S. I think one should look for the 50W ones.

author: Proxy64
author_rank: Regular Contributor
timestamp: January 09, 2024, 12:52:26 am
content: Quote from: Silver_Is_Money on January 08, 2024, 03:41:46 pmNo the DHO doesn’t work with the Anker 737 !

author: Silver_Is_Money
author_rank: Regular Contributor
timestamp: January 09, 2024, 01:14:26 am
content: Quote from: Proxy64 on January 09, 2024, 12:52:26 amHow about this powerbank?https://www.amazon.com/Charging-50000mAh-Portable-Compatible-External/dp/B0CHJRW5K5/ref=sr_1_3?crid=12WDPKYL1Z6O5&keywords=power+bank+fast+charging+50000mah%2C+65w+laptop+portable+charger&qid=1704762752&sprefix=Power+Bank+Fast+Charging+50000mAh%2C+65W+Laptop+Portable+Charger%2Caps%2C455&sr=8-3

author: DaneLaw
author_rank: Frequent Contributor
timestamp: January 09, 2024, 01:36:51 am
content: Quote from: Proxy64 on January 06, 2024, 07:16:00 amI doubt the Anker 737 supports PD12v as none of the protocol triggers I tested with can activate 12v in power delivery regi on these 140w Anker powerbanks.When you test for PD-listner on your 737, how do you hook up your Anker737 to the FNB58?Fx a description or a picture of your setup.?These are the protocols, I get greenlit from the Ankers737 PD protocol inventory.

author: Proxy64
author_rank: Regular Contributor
timestamp: January 09, 2024, 03:55:42 am
content: Quote from: DaneLaw on January 09, 2024, 01:36:51 amYes that why I noticed that on my initial post.I saw some reviews with the 12V missing, I saw many complaints from Mavick users about the missing 12V.So maybe they have made an update, maybe it’s only software, I don’t know!But below a picture, I trigged for 12V/3A and as you can see on the dummy load screen, it’s really 12V sinking 1A for test.

author: Proxy64
author_rank: Regular Contributor
timestamp: January 09, 2024, 04:25:23 am
content: Quote from: DaneLaw on January 09, 2024, 01:36:51 amFNB powered by microusb (connected to the Macbook)PD switch ONEnter in Listener functionConnect the Anker737 then the scope

author: Proxy64
author_rank: Regular Contributor
timestamp: January 09, 2024, 04:32:05 am
content: According to this video Shargeek 100 (Storm2) should workshttps://www.youtube.com/watch?si=ufldtgFa_a2auhS4&v=TXL916et9_Y&feature=youtu.be

author: Proxy64
author_rank: Regular Contributor
timestamp: January 09, 2024, 06:33:36 am
content: Quote from: Silver_Is_Money on January 09, 2024, 01:14:26 amI don’t know this one and they don’t provide informations about supported protocols,but I would say:Stay away from mysterious China brand with big promesses, often they don’t have the capacity annouced on marketing flyer. Brand like Baseus, Liteon, Shaargeek, Anker and many others you will find online reviews.For the issue with the Anker and the DHO, probably better to avoid PD3.1 maybe the scope has an issue with this, maybe.

author: Demon Xanth
author_rank: Contributor
timestamp: January 09, 2024, 07:12:05 am
content: Baseus PD65 pack worked without issue for me.

author: DaneLaw
author_rank: Frequent Contributor
timestamp: January 10, 2024, 04:13:40 am
content: Quote from: Proxy64 on January 09, 2024, 03:55:42 amHave you tested the actual output of the 737 to check what voltage it is delivering from the bank to the FNB58 fx with a USB meter in between and its not some fluke in the FNB58 that / bulks it down, Anker is pretty is pretty clear cut, the A1289 does not support 12V PD, and no revisions of the A1289 should have that protocol support, according to them.Reached out to see if the A1289 is pushed under different fimware revisions or upgradeable.QuoteIt seems its a conclusion that Anker have taken when Apple dont support 12vPD as Anker tries to be pretty hardtied into Apples ecosystem..

author: DaneLaw
author_rank: Frequent Contributor
timestamp: January 10, 2024, 04:52:34 am
content: Quote from: Proxy64 on January 06, 2024, 07:16:00 amIt is a shame if your Anker737 dont work with your Rigol, as the Anker737 (Powercore24 A1289) does seem to work with the newer Rigol products, but it could be they changed something from the older Rigol products to the newer Rigol models.

author: Proxy64
author_rank: Regular Contributor
timestamp: January 11, 2024, 04:48:03 am
content: Quote from: DaneLaw on January 10, 2024, 04:13:40 amHere what we can read on the Anker support about Mavick charger issue due to the missing 12V:Therefore, our engineer will improve our power bank and add the charging ability at 12V in the near future, which should help to be better compatible with the DJI Mini 3 Pro.Maybe communication between Anker services is like Boeing communicationhttps://ankertechnologycompanyltd.my.site.com/ankerenexternal/s/article/Why-does-the-UVP-warning-appear-on-the-Anker-737-PowerBank-s-screen-when-charging-a-DJI-Mini-3-ProQuote from: DaneLaw on January 10, 2024, 04:13:40 amNo there is no misunderstanding about the result of the PD negotiations!No the FNB58 will not add missing sources capatibilities, no it doesn’t have bulk converter inside it’s not his job.Compare your PD listener result with mine post #10, if you think my fnb58 add 12V capatibility, why yours doesn’t post#9 ?

author: DaneLaw
author_rank: Frequent Contributor
timestamp: January 11, 2024, 10:34:04 am
content: Quote from: Proxy64 on January 11, 2024, 04:48:03 amLet's see what Anker responds, as you're quoting a technician from Anker support that was under the clear-cut belief that no variants of A1289/Anker737 had 12V PD implemented, but Anker got quite a portfolio of products, so there is a chance they (fx western orientated support technician) simply aint up to date if there are changes. and perhaps regional..Not to mention, it could also be relevant to get an idea of what serie-nr or production stats new revisions took place - but as I exampled to you above, my unit doesn't carry PD 12v from its native TypeC PD sockets, so that should be written in stone by now, PD-listener screenshot or not - and likely the same with most units here in the West.Been an issue for some since the Anker 737 came out a year or two back and seems to go hand in hand with Apple's lack of 12V PD.https://www.astroworldcreations.com/blog/powering-your-rig-with-usb-power-deliveryYou seem to be in Thailand, and your Anker737 still got screencover on it, so I reckon you likely just got it... where did you purchase it from, local in Thailand, or CN import like Aliexpress etc?Here in Europe, the 737 looks to be on the verge of being discontinued and not in stock, seemed they were cleared at a reduced price.https://www.anker.com/eu-en/products/a1289?ref=naviMenu&variant=42109767549118Anker refers to newer models, like the Prime series..in the USA they also seem to be clearing stock of older 737 units with a -40% to 45% reduction 159/149 down to 91UShttps://www.anker.com/products/a1289?variant=41974285041814Or maybe they are simply clearing stock, of older revisions..Quote from: Proxy64 on January 11, 2024, 04:48:03 amOfcourse it does.. FNB58 are able to add missing ablelities , it will even give you 12V PD on powerbank units that don't have it- as explained my unit doesn't support 12V PD (like most units) but the FNB58 can in fact recreate a 12V PD protocol, even from a socket that aren't intended for any PD support, like USB-A, - the FNB58 does it by converting the Qualcomm fast-charge into 12V PD power delivery signal.So 12V PD products can trigger and run on 12v PD signal from the Anker737, but it's limited to sub 30W (12v/2.5A) its called "QC to PD converting", and its limited to the older power delivery standard PD 2.0.Alongside the FNB58 offers the ability to regulate the voltage down to your heart's desire by giving access to different voltage adjustment protocols that both Qualcomm & Power Delivery have, alongside other vendors' semicharge protocols.Anyway - as mentioned, it's a shame with your new power bank, and its doesn't work with your new Rigol scope as it's a nice power bank..as you can see above' my unit (Anker737) does in fact work with Rigol's new TypeC products and it doesn't make a 12v dip, it stays continuously at 15v from scratch to boot, so maybe you can put your hat on the tiny "hope" that Rigol can change it thru future firmware..

author: Proxy64
author_rank: Regular Contributor
timestamp: January 11, 2024, 11:38:13 am
content: Quote from: DaneLaw on January 11, 2024, 10:34:04 amSorry, no it doesn’t, you are confusing PD trigger function and QC to PD converter function, in this case it make a protocol exchange between QC and PD, so if you have an output QC 12V it will convert the protocol to give an PD 12V output (it make change only on the protocol layer).As you said, anyway, yes I think you are right about localization, I live in Thailand and I got it directly from an authorized seller in China, that should explain th difference.I don’t mind about the issue with the dho800, because I don’t buy it especially for that and if I need it I can use it with the fnb58 trigged on 15V/3A in this way it works. Really a good Swiss Army knife this FNB58

author: DaneLaw
author_rank: Frequent Contributor
timestamp: January 11, 2024, 12:31:54 pm
content: Quote from: Proxy64 on January 11, 2024, 11:38:13 amNot sure what your meaning? "makes only changes on the protocol layer".. of course, what else, should it do?"FNB58 will not add missing capabilities" when it in fact does that... it adds a 12v PD standard to fx a power bank that doesn't have it, and from a USB-A socket that never will have PD-officially.When you can use the FNB58 to convert the QC/Qualcomm charge protocol into a Power delivery protocol (PD) you suddenly can use 12v PD products from a power bank that simply doesn't have 12V PD support.. that is, in fact, adding "features" the item didn't have or supported.Not to mention having 12V PD Power delivery from a USB-A socket, also a feature that is added by FNB58 that you're not gonna obtain natively since PD is centered around TypeC sockets, not to mention getting 3x PD outputs on a unit that only supports 2x PD out, so the FNB58 is certainly adding new featuresThese two protocols come from two competing backlands.. QC is Qualcomm's own charging protocol (Qualcomm is the corp behind Snap Dragon SoC, Aptx etc) while Power delivery  is from USB-IF (Implementers Forum) a consortium of technology companies where the board reflects representatives from a lot of big dogs on campus.. fx Apple, HP, Intel, Microsoft, Renesas, STMicroelectronics, Texas Instruments etc. (USB-IF is generally classified as a non-profit organization)Qualcomm is certainly not to fund of Power Delivery (PD) as they feel big tech for years been stigmatizing their Quick Charge standard (QC) - which they certainly have but for good reasons.https://arstechnica.com/gadgets/2016/11/google-threatens-qualcomm-quick-charge-with-android-incompatibility/Quote from: Proxy64 on January 11, 2024, 11:38:13 amThere you go, stay locked in 15v PD, so it could look like it's the 12V dip on your DHO800 bootup phase that is messing it up.That would be a shame if it's that new 12V PD feature that seems to be implemented on your new Anker737 from CN, that is choking & undermining a direct use-case, which is very unlikely as I have no problems with PD3.0 powerbanks that include. 12v PD, it will not dip to 12V,, it stays in 15v from start to bootEither way, you got it to work with your Anker737, even though it sounds far from ideal to have to trigger with FNB58 every time, but if it works when you got it triggered in 15V3A with FNB58 then just get a locked 15V PD decoy cable or make the cable yourself, then you won't have to trigger with FNB58, and can run your new power bank directly with your scope.

author: Proxy64
author_rank: Regular Contributor
timestamp: January 16, 2024, 10:39:26 am
content: Today I got an email from Anker:We want to inform you that, after confirming with our backend team, we have implemented an improvement to our 737 power bank. The latest version now includes an additional charging tier of 12V/3A, designed to provide you with more versatility and efficiency in your charging needs.

author: ytterligare
author_rank: Regular Contributor
timestamp: January 20, 2024, 07:54:15 pm
content: Quote from: Proxy64 on January 16, 2024, 10:39:26 am"…so please throw your "old" 737 in the trash bin as we were too lazy to shell out a firmware update and please buy a new one, in the hope that the one you get belongs to the new release batch…otherwise, throw it again and repeat” : if you’re lucky, within three or four times you’ll end up with a market worth product…"

author: Houseman
author_rank: Regular Contributor
timestamp: February 08, 2024, 08:43:42 pm
content: I confirm that powerbank INIU BI-B63 clamed as PD 100W 25000mAh does not complete Rigol's boot.Fan goes on but after a while DHO shuts down.Asked for refund.

author: al777
author_rank: Contributor
timestamp: February 11, 2024, 07:59:11 pm
content: I can confirm thatEssager PB187 65W "15000mAh"does work for DHO924S. No tests done in terms of how long it will last and what it does to the noise floor - my fully-floating sessions were fairly short and on fairly large signals.

author: Houseman
author_rank: Regular Contributor
timestamp: February 13, 2024, 10:18:54 am
content: Quote from: DaneLaw on January 10, 2024, 04:52:34 amI can CONFIRM that even if new generationIT DOES NOT WORKwith RIGOL DHO914.Even 140W Seires 7 Generation 2 these beefy PB does freeze the Rigol at startup since cannot go beyond 20W. EITHER plugged in C1 and in C2 jacks. See attachDO NOT BUY IT.I am asking before claiming for refund if Anker will release a new firmware for this item...

author: DaneLaw
author_rank: Frequent Contributor
timestamp: February 14, 2024, 03:03:34 am
content: Quote from: Houseman on February 13, 2024, 10:18:54 amNot sure what Rigol had in mind with their DHOxxx line, and could look like they placed themself between two chairs 12V PD & 15V PDAs mentioned newer products from Rigol, using the same form factor, works on all the high current powerbanks I got access to.An example of the start-up cycle stays constantly in 15v PD.You can obviously decoy trigger a locked 15V PD, then it should work according to the info on page1.What I do with my Micsig scope that doesnt have native PD, so can use most of these PD powerbanks with that unit.

author: Proxy64
author_rank: Regular Contributor
timestamp: February 14, 2024, 03:17:33 am
content: @Houseman you can use a board like this one, to trig 15V/3AMaybe there is version with USB-C male to USB-C female, I don’t know.And you know, I don’t think Anker is guilty in this case with the Rigol DHO800/900https://www.aliexpress.com/item/1005006445099579.html?spm=a2g0o.productlist.main.3.6e495d53bv2LjW&algo_pvid=3a6a6fd9-8e3f-4010-960e-0ff2517fb9c0&algo_exp_id=3a6a6fd9-8e3f-4010-960e-0ff2517fb9c0-1&pdp_npi=4%40dis%21THB%21120.29%2136.07%21%21%2123.38%217.01%21%402103297517078804100556610e3c2e%2112000037191871056%21sea%21TH%21121161211%21&curPageLogUid=oWh0sN5vfrCx&utparam-url=scene%3Asearch%7Cquery_from%3A

author: Proxy64
author_rank: Regular Contributor
timestamp: February 14, 2024, 04:28:23 am
content: Here a test with a PD trigger board to use an Anker powerbank to power a DHO800/900.https://youtu.be/CBg0HLug-W4?si=Qaa56oDNEBTkxZSLedit: Note that the FNB58 is only here to display the voltage and power.

author: Proxy64
author_rank: Regular Contributor
timestamp: February 15, 2024, 01:33:10 pm
content: Based on to this video Shargeek Storm2 workshttps://youtu.be/TXL916et9_Y?si=ufldtgFa_a2auhS4

author: Houseman
author_rank: Regular Contributor
timestamp: February 16, 2024, 04:48:13 pm
content: Thank You all. Would like to know a way to measure how much noise in injected into the rigol via power supply with this setup.And why the power supply provides 12V instead of 15V provided by the powerbank

author: ebastler
author_rank: Super Contributor
timestamp: February 16, 2024, 05:33:51 pm
content: Quote from: Houseman on February 16, 2024, 04:48:13 pmWhere "the power supply" means which power supply??Only the very early power supplies shipped with beta units (and maybe to early Chinese customers) were of the cheap fixed 12V type described in the user manual. All DHO800/900 scopes shipped to the Western world should come with proper supplies which negotiate the voltage via the USB PD protocol, and should negotiate 15V.Rigol have just neglected to update the user manual. Or did you actually measure 12V being used with your scope's power supply?

author: Demon Xanth
author_rank: Contributor
timestamp: February 16, 2024, 09:18:08 pm
content: Baesus 140W powerbank DOES NOT workworkson the C2 output, but not the C1 input/output. Very curious.Edit:The C2 and USB-A outlets cut out due to lack of current, the C1 seems to have a handshaking issue. The 65W works fine though.

author: shapirus
author_rank: Super Contributor
timestamp: February 17, 2024, 07:19:55 pm
content: This one works too:The PSU here is a69W Ugreen. The battery is a 3s LiPo.Curiously, just like the Baseus mentioned in the previous post, it doesn't work (or the scope doesn't work) on port USB-C1. The other two, USB-C2 and type A, work fine.update: I checked the specs, and now it's obvious: the specs state 20W max on port C1, 60W max on port C2. But then again, it says max 22.5W on port USB-A, and the scope works fine powered from that port.

author: Houseman
author_rank: Regular Contributor
timestamp: February 19, 2024, 11:13:21 am
content: Nice!.Isn't it a little bit undervoltage powered?I see 11,1V instead of minimum 12VHow long does it last?Regards

author: Houseman
author_rank: Regular Contributor
timestamp: February 19, 2024, 11:14:44 am
content: Ah, ok got it now.It is not just a cigar plug.How long does it last?

author: shapirus
author_rank: Super Contributor
timestamp: February 19, 2024, 11:30:03 am
content: Quote from: Houseman on February 19, 2024, 11:14:44 amBut it is. It's a plain automotive 12V USB power supply designed for the cigarette lighter socket, only of the fancier ones -- higher power and with support of PD, QC and all the type C paraphernalia.Quote from: Houseman on February 19, 2024, 11:14:44 amHaven't measured. Will be equal to: battery energy capacity * DC/DC converter efficiency * wires and connectors loss factor / scope power. Very rougly, that's a 50 Wh battery, let's assume 80% conversion efficiency, then at 35 W consumption it's going to last 50 Wh * 0.8 / 35 W ~= 1.14 h.Speaking of min voltage, it seems to work fine at (currently) ~11V, and there's really no reason for it not to: there's a plain switching buck-boost converter inside, and they typically have a wide range of acceptable input voltages. I will test it later with a lab PSU to see how low a voltage it can accept on the input.

author: jsobell
author_rank: Contributor
timestamp: February 22, 2024, 10:54:42 am
content: I can confirm that the INIU 25000mAh unit works fine -https://www.amazon.com.au/dp/B08VDJP7WNI timed it, and it gives almost exactly two hours out of a 100% charge.That's not overly impressive, as at 3A draw it mathematically should be over 7 hours, and even allowing for losses it would be nice to have more than 25% of the power delivered.But, if two hours is sufficient, then this model works fine and is nice and cheap.I've also ordered a 40,000mAh unit to test, and I'll post if it works or not. It's a bit of a minefield choosing the packs, as some are only 5V, and many split their current over several ports, rather than a single one with 15V@3A as we require.

author: shapirus
author_rank: Super Contributor
timestamp: February 22, 2024, 11:11:50 am
content: Quote from: jsobell on February 22, 2024, 10:54:42 amNo that's actually good enough. It's 25000 mAhat 3.7 V-- the usual disgusting trick of the powerbank manufacturers who don't specify capacity at the actual battery voltage, or, better, energy capacity. Always use energy -- measured in Wh -- to estimate the battery run time. This makes the battery 25 Ah * 3.7 V = ~92 Wh, and at 35 W power draw it theoretically means slightly over 2.6 hours. Apply the conversion losses and the chinese Ah derating, and 2 hours run time doesn't look bad at all.

author: jsobell
author_rank: Contributor
timestamp: February 23, 2024, 03:47:10 am
content: Quote from: Houseman on February 08, 2024, 08:43:42 pmInteresting, I have the same one and have no issues running the scope.I can use it in either output socket (45W or 100W) and I get about 110mins out of a full charge.The pack is rated to 3A@15V, which meets the requirements.

author: jsobell
author_rank: Contributor
timestamp: February 23, 2024, 07:41:33 am
content: Quote from: shapirus on February 22, 2024, 11:11:50 amThat is interesting, and I see what you mean. I guess it's a tricky one to specify accurately, as you can only specify the battery capacity as it supports so many voltages. It is a bit disappointing though!The good thing about this particular pack is that it also works in pass-through, so you can leave it connected and charge it (quite slowly) while running the scope.I'm just running a test on a 40000mAh pack to see how that fares, but it doesn't support pass-through, so may not be worth the extra hassle. It reports 2.3-2.4A of current draw at 15V, so on that basis (40Ah * 3.7V = 148W) it's got over 4 hours of running.I'll post up the actual running time once the scope diesJ.

author: shapirus
author_rank: Super Contributor
timestamp: February 23, 2024, 10:11:19 am
content: Quote from: jsobell on February 23, 2024, 07:41:33 amThis is exactly the reason why specifying not charge, but energy capacity, in Watt-hours, and conversion efficiency at different output voltages, is the right and universal way of doing it. Having these two, the customer can adequately compare different powerbanks and estimate how long they are going to last in a particular scenario.Quote from: jsobell on February 23, 2024, 07:41:33 amMake sure you make no mistake in units calculation to avoid misunderstanding the concepts of power, current, charge, and energy. Multiplying Ah and Volts won't yield Watts:1 A = 1 C / 1 s [current, aka charge over time]1 W = 1 J/s [power, aka energy over time]1 A * 1 V = 1W1 A*h = 1 A * 1 h = 1 A * 3600 s = 3600 C 1 W*h = 1 A*h * 1 V = 1 W * 1 h = 1 W * 3600 s = 3600 W*s = 3600 J

author: LonnieU
author_rank: Newbie
timestamp: February 25, 2024, 02:16:11 am
content: I purchased a Baseus Model BS-30KP365 for a USB Soldering Iron and for other general purpose usage awhile back.https://www.amazon.com/s?k=B08JV4W4NYRan my DHO924 for an hour and 45 minutes today and it took the pack fully charged down to 56 percent. Negotiated for 15vdc and ran 2.1-2.2 amps.

author: jsobell
author_rank: Contributor
timestamp: February 28, 2024, 10:45:07 am
content: Quote from: jsobell on February 23, 2024, 07:41:33 amYes, I get almost exactly 4 hours of running from the ROMOSS 65W 40,000 mAh pack.The only thing I'm not keen on is that it only has a single USB-C ports, so it doesn't support pass-through and you can't leave it connected to recharge when the scope is powered off.

author: jim_griff
author_rank: Regular Contributor
timestamp: May 09, 2024, 02:32:31 am
content: For those who are curious, youCANindeed hook up your Rigol DHO800 directly to a battery. I've tested between 11V and 15V on the bench PSU connected to a USB-C cable and the scope powers up fine. It draws roughly between 3.1A and 2.8A depending on input voltage.I haven't tested in-depth to see if there are any long-term issues when running at lower voltages, but the fact it powers up shows there is no USB PD negotiation going on, so no trigger board is necessary to "trick" it into working.I'm going to build a 3S LiPo pack with in-line fuse and BMS protection to run mine when out and about. Don't see the point of inefficiencies in power banks, unless there is a solid requirement for it to constantly have 15V on the scope's USB-C power input. Maybe I'll figure out some issues later down the line! However, the scope has many Vregs inside it anyway which are serving all the necessary voltages, so I don't see any point regulating the input to 'precisely' 15V.

author: aXit
author_rank: Contributor
timestamp: May 09, 2024, 03:22:27 am
content: What's the UVLO behaviour of the scope for voltages under 11V? 3.66V per cell could be less than 50% capacity used, depending on the exact chemistry.

author: ebastler
author_rank: Super Contributor
timestamp: May 09, 2024, 06:24:55 am
content: Quote from: jim_griff on May 09, 2024, 02:32:31 amIt's known that the scope works without PD negotiation, since the original power supply (shipped with the very first units only) was a cheap fixed 12V type. The user manual, in section 4.3.2, still describes that supply and specifies a 12V/4A power requirement for the scope.

author: shapirus
author_rank: Super Contributor
timestamp: May 09, 2024, 08:00:59 am
content: I would guess that it should work fine down to 10V or maybe even less. Everything gets converted to lower voltages anyway, the highest probably being the fan power rail at its 8V.If that is so, then the only remaining concern should be the somewhat increased current (compared to 15V and 12V) that the tracks going from the USB socket to the switching converters will have to carry. But unless they are super thin, that shouldn't be an issue.

author: csuhi17
author_rank: Frequent Contributor
timestamp: May 09, 2024, 08:14:14 am
content: I would mainly be interested in the maximum voltage it can withstand.

author: jim_griff
author_rank: Regular Contributor
timestamp: May 10, 2024, 01:26:25 am
content: I've had it down to 9.3V here (3.1V per 18650 LiIon cell). Was still functioning properly, but I wanted to stop the test there as I didn't want to damage the cells I was using.With 2500mAh cells (a suspect figure for cheapo cells), I managed to run it for approx. 15 mins, give or take a few mins. Didn't set a timer. When recharging from 3.1V to to 4.15V, the cells each took in an average of 1350mAh.In terms of the maximum voltage the scope can withstand, I haven't tested haha! I was thinking about testing a 4S LiIon battery (16.8V max), but the scope is a lot of money to put on the line for a simple battery test. Since it works at 12V and quite a bit below, I'm not so happy to test it up to 16.8V.

author: shapirus
author_rank: Super Contributor
timestamp: May 10, 2024, 08:03:26 am
content: So a 3s LiPo or 4s LiFePo4 or a lead-acid all seem to be a good fit. That's good.

author: jim_griff
author_rank: Regular Contributor
timestamp: May 10, 2024, 02:56:28 pm
content: Confirmed working with DHO-804:INIU® Power Bank - BI-B64Amazon £71.99 (with the included discount voucher and using free delivery).It's only 55% charged, but seems to claim it would last another 2.2 hours running at 32W. Seems legit.

author: merkatorix
author_rank: Newbie
timestamp: September 16, 2024, 06:53:51 pm
content: I can confirm the INIU BI-B64 working with the DHO924S. (However, I'm not sure if it will run much longer than 3 hours, but you can recharge it while using the 45W output for the oscilloscope. Note: I don't understand the 45W+18W=24W print on the power bank)There might be visibly less common mode noise when using a power bank.P.S.: Thanks to the previous post; otherwise, I would not have tried this power bank.

author: SP3TA
author_rank: Newbie
timestamp: October 08, 2025, 04:40:58 pm
content: PN#: Baseus PPADM65-SChecked last night - 1.5h of runtime from 80% (displayed) SoC till power-off.Internal display shows current consumption 2.2-2.3A@15V after DAQ init (and ~1.3A before famous relay clicks) which sums up to 50Wh of energy at output and corroborates specs (74Wh battery, >75% energy conversion efficiency).