XT30 Vs. JST Vs. PH2.0 Connectors Comparison
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- čas přidán 4. 01. 2019
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Thank you for this video! The data is always great to see versus a subjective feel. Definitely a thumbs up!
Great tests and comparisons, dude! 😊
Nice to see a video comparing connectors. I know there has always been talk about it back in the tiny whoop days. You could also conclude the PH connector is underrated. Improving that would be nice
Awesome job charting that! I'll probably stick to the 2.0 connectors though so i can run 1s inside
Phew!!! thanks Gal, I have just changed all my JST connectors to XT30 it took me a very very long time.
Its good to know my effort was worth it. Always useful :)
Yes - it surely seems like you didn't waster your time :-)
How are you going to charge them? Parallel board? one by one? It is a pain to charge those tiny whoop batteries one by one since I fly like 12 packs per session...
Very informative! Thanks Gal! 👍😎
Just about to upgrade my mobular 7 to xt30. So great timing.
Going back to your flight footage on the previous video I saw that during 100% punch out the current reached over 13A, would you consider trying this test with a 10-12 A load? I think that maybe 5A isn't quite enough to be representative of max amp load for the trashcan. I'd be very curious to see if a bigger difference could be seen between ph2.0 and xt30.
Yep :-)
czcams.com/video/fsQGbGF5auw/video.html
I just change to xt30 on my mobula7 1s config, voltage sag is significant improved.
Thank you for the video.
Great to hear!
This is exactly what I was looking for. The voltage sag is significant on my Mobula 7, and I want to convert to either the XT30 or the JST RCY but had concerns that the XT30 would be too heavy for it. But it's essentially only 2 grams more, which I guess hasn't been an issue for you.
Hi! How do you think will Trashcan manage to carry 650mah batteries in either 1S an 2S connections?..
I have a 2S 350mAh lipo only with a JST XH2.5 connector. No extra cable with connector. It is from my Omphobby M1 Heli. Works great on the Heli. How does the XH2.5 compare in this test? 🤔
Great test. Thanks for answering this burning question.
My pleasure Shane :-)
A must do to my Mobula 7!
hey Gal! I'm interested to know if I could adapt a 1s battery with ph2.0 connector into an xt30, kind of like you had your test leads, just in case I want to fly these smaller quads indoors at 1s for competitive reasons (there are some local clubs that run 1s events) I may gain 1.85g but I don't feel like that's too much more of a load on a single 1s battery? What are your thoughts? I've already seen another channel run some other 2s whoops with the xt30 and have kind of decided that its probably the way I would want to go.
Sure - you can make a PH2.0 to XT30 adapter. Having said that - if you are frequently 1s batteries - just stick to the PH2.0 connector :-)
Let me be the 100th comment, saying thank you for the video! Exactly what I was looking for. It was very helpful.
My concern has been whether adding the XT30 to the Mobula 7 (essentially adding 1-1/2 grams) would be too much for the drone. I'm new to drones so I'm learning.
Can you do the test again with the new connectors bt2.0 and et2.0/gnb27 vs xt30 connected to the battery as the jst was? I was thinking that maybe this two connectors are worth replacing the xt30 in 2s batteries .
Thanks in advance. Keep up the great content
Thanks for the suggestion. I was planning to make an updated video but never got the time to do it :-/
I might post an updated test in the future though.
Very great work you did in this video, thumbs up!
Thanks Yoda!
excellent. thank you!! cheers 🍻
Gal, nice video. I am thinking of getting a toothpick class 2-3s drone with an XT30 connector. However I have a large number of 1s whoop batteries with PH2.0 connector. Do you foresee any issues if I make an adapter with an XT30 male plug to (3) PH2.0 female plugs wired in series? I am ok with some efficiency loss if I don't have to buy new batteries :)
Thanks.
Sure, you can do that but I do suggest in the meantime while you fly to get new 2/3s batteries with the appropriate connectors as you will encounter efficiency loss issues and your flight time will be shortened.
I'm a complete novice here so read this comment with some skepticism. I would also have no problems with creating an adapter to go from a PH2.0 to an XT30. But I think you'll be less happy with the results. I'm sure it would likely take a Long time to change over your batteries but you could try changing over a couple to XT30 connectors to see how it goes.
Good luck!
Just a quick question, how are you going to charge the spliced 2s battery that uses that xt30 connector is it ok to not have a ballance lead? I want to do the same with a bunch of 1s bats I have thanks
You are correct, it's much better to use a balance connector but it's possible to charge the battery without it (with some chargers).
Hi Gal, great. very good comparaison, it's why I use XT30 Connector for 2S whoops. ! 👍
thank you for share the test
I have et115 v1 with 2s. So is it better to change to xt30 conector ?? I have jst. Will I have a bit longer fly time ??
My pleasure. Yes, I think that it will be better with an XT30 connector.
@@KremerFPV thank you and have a nice day
Great video! Just what's needed right now. Something to note reading the comments... TWO (not one) PH 2.0 connectors have more resistance than just ONE JST which is interesting as JST lists the common 2.5mm JST RCY connector used here as a 3A max connector too. So the JST should have been used in place of the PH 2.0 IMO but it's still not rated high enough. Also JST connectors come in different quality grades not listed on JST's website that increase the amp rating (over double I believe) but to my knowledge only the cheap version are used commercially so the new BETA FPV BT 2.0 connector seems the best way to go right now. My experience shows the cheap version JST connector gets warm enough to be hard to separate on a U807 using a Nano-Tech 750mah 35C 1S (lower amp draw) so at 0.58 grams (both male and female) I'll be ordering some BT 2.0's for all my 1S high C rated batteries and hope a standard micro connector for 2S high C batteries emerges as that's what is needed now as well as longer flight times on small builds.
That's good to know. Thank you!
Apart from weight, is there any downside to soldering on both the xt30 and ph2 connectors together on the quad to have the choice? Looms like it has enough power to take the extra weight anyway
I think that a better way would be to make an adapter of XT30 to PH2.0 and then use it when you want to use a 1S battery. The pads are pretty small and I don't advice to use two connectors at once.
Great comparison
Huh, the differences were definitely less than I expected, but as you say this was only 5A load so it would be more the higher the amperage. Do those GnB 450s fit on the trashcan? Excellent test though thank you!
Thanks Charles. I re-tested it in this video: czcams.com/video/fsQGbGF5auw/video.html
Yes - the GNB450 fit.
Does the length of the cable between connector and battery not have any effect ? e.g shorter it, is the better the performance ?
It should have a very minimal effect when dealing with such short wires. Of course if the wire length would be a couple of meters it will have a big effect :-)
This video seems to confirm what some other testing has shown; the XT30 makes a lower resistance connection than either the PH 2.0 or the JST. Hence the increase in volts and amps, and thus watts. Could you provide us with some information about your test setup or a link to a video which describes it? Thank you.
What information are you missing?
I mention the AWG of the wires in this video: czcams.com/video/fsQGbGF5auw/video.html
Great information! 👍
I have a question, I have some lipo batteries but they are jst plug so I want to know if I can change it by a tx30 plug just by cutting the end and welding the new plug, hope you can help me. The batteries are 3s 1000mah 30c
Yes, it's pretty easy. Just be careful not to short the two wires together.
Can you fly 1s with the XT30 like you can with the JST connectors with one closed off?
If you mean that you can connect both connectors to the battery pad - the answer it yes.
How do you charge your modified 2s batteries now that there is an xt60 with no balance lead?
I only did it for the sake of testing these batteries and even though it's not ideal, you can also charge your batteries without the balance connector.
Would love if the BT2.0 connector was tested. Was that the solid pin PH2.0 connector?
I plan to test it soon. As far as I can remember it was a solid PH 2.0 connector.
Since getting a UK65 I noticed that the PH2.0 connection got quite hot (easily visible with a thermal imager), it turns out the PH2.0 plug on the craft has pins made from flat metal folded over length ways into a U shape.
I replaced the UK65's lead, using one I made with a board mounting PH2.0 connector because it has solid metal pins. Now the connection doesn't get hot like it used to.
I've been wondering what the amp capability is between the folded metal pins PH2.0 and the solid metal pins version.
Officially the manufacturer of PH2.0 (JST) rated it for 2A. But as you see in this test 5A doesnt show huge losses, but they are there. I bet the folded pins are
Cool, this is very useful. great work!!
Thanks!
Great comparison video
Thanks Raymond.
Any tutorial how to do the modifications on the battery
I recommend to just buy compatible batteries. I only changed the connectors of the batteries for the sake of testing them.
Good info, great video, added to my favs.
Thanks buddy!
Great comparison and great video. I only have 1S micros running so far and there it is not worth the effort. I am not sure, if I would do it with 2S whoops, because the difference is marginal and you have to mod every battery you buy. So not what I want to do, just for only 3% extra power. I am pretty sure, nobody wíll notice the difference while flying, if he does not know, which setup he flies. Would be a nice topic for a video, to make such a test. Just use 2 trashcans. One stock and one modded and do not show the pilot which one he is flying. Make several runs and let the pilot guess which one he is flying in every run. Somtimes just change battery and sometimes swap the quad. Let a dice decide, just to be sure to have some randomness.
Thanks for the suggestions. The difference is actually not that marginal. Check out my new video: czcams.com/video/fsQGbGF5auw/video.html
I have the original TH1 on 1S and have had several problems including proper charging that traced back to the PH 2.0 connectors being worn out which is a real issue with the PH 2.0 as it is NOT a battery connector and was designed for 2A max 30 AWG low amperage circuit board connections so with repeated insertions it's not designed for it soon loses its tight fit and ability to carry sufficient current. I was shocked at how much more power and flight time I picked up just from replacing the PH 2.0 on the TH (not the battery's connector warn out as well) which people say maxes out at 4.5A but was designed for 2A and loses current capacity fast.
On a small 1S whoop I would use BETA FPV's new BT2.0 9A (15A burst) 0.58 gram 1mm bullet connector and hope it becomes the standard for high C rated 1S batteries unless someone comes out with a better connector which gets old as we only need one standard connector for battery manufactures to use. The XT30 on 2S works but the balance lead adds too much weight so it should replace the main power lead so a new connector for 2S batteries is needed with it's own connection cable to work on all chargers
Hard to believe a common important part needed for a micro quad is holding back so many quads performance! BETA FPV's BT2.0 can support 9A continuous current and 15A burst so for now 2 BT2.0s on two 1S 300 GMBs seems to be the best battery setup for 2S micro builds like the Tinyhawk but there is added weight using a duel battery setup so hopefully Emax reads these comments and responds with a new battery/connector setup for single 2S batteries. But I hear you about soldering on new connectors when the battery manufacture could have done it for little added expense... but they must use whatever connector people use so the hobby is back to developing another standard connector people chose developed for high powered micro quads.
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In your opinion, is it worth upgrading to JST instead of XT30 on a 1s 600mah toothpick build? I mean JST is lighter, and it doesn’t require soldering, which might degrade the battery due to the heat when soldering , and I have tons of JST connecter laying around 🤣
Is it worth saving 1-2 grams of weight in exchange of 2-3% of efficiency?
It's actually downgrading haha. You can use BT 2.0 connectors but if you have a lot of JST connectors and you must use them, go ahead :-)
can you please redo this test with a small capacitor added to the xt30?
Sure - I will test it and report the difference if I will find one. Thanks for the suggestion.
Thank you. Very useful.
I am glad I could help Michael :-)
What type of thrust stand do you have
czcams.com/video/f9T82W5p84k/video.html
Was the 2ph pigtail 24 or 26awg?
24
Nice one Gal
Thanks!
Where do you buy that thrust meter?
czcams.com/video/f9T82W5p84k/video.html
@@KremerFPV thanks
I had xt30 on my m7 before and yes the battery bay sux as u have to modify it but i got 3.5mins best with 300mah 2s nanotech 45c so 3.5mins was disappointing. I switch back to 2x 2s ph2.0 with solid pin connector and 20awg wires. I can get 4mins+ with 260mah 1s betafpv hv lipos. For the trashcan xt30 is a good idea because it has a bigger motor and the battery bad doesnt need mods.
Yes - I totally agree - the Mobula 7 is not XT30 user friendly as the Trashcan.
Can someone tell me if JST-PHR is the same as JST-PH2.0?
I don't think so (but I am not sure).
technically these are all "JST" connectors.. the red one is actually a JST SYP or RCY connector, the White one a JST PH connector and of course the JST XT30 connector.
Differences seem pretty small. IMO doesn't seem worth the effort or added weight.
I agree, although if I already had some 2S XT30 batteries around I'd consider it. Most of us probably have a lot more 1S whoop batteries though. Not to mention, 2 grams is a lot in the whoop world, although for 2S probably less meaningful.
What you will feel when flying is neither Volts nor Amps but Watts that go through the motors, which is voltage times current so the two increases multiply. In the first test that would be 9% more which is certainly noticable. And from reports of people modding their Mobula7 to XT30 the improvement seems to be substential concerning battery sag, maximum power and flight times.
I think the amp load measured here (5A) is around hovering/cruising speed. 100% was over 13A current so I would bet the difference is much bigger at 100% throttle.
New test with higher Amperes: czcams.com/video/fsQGbGF5auw/video.html
@@Gosuminer Yes... agree. I've experienced a drastic increase in power and flight time just from replacing the male side PH 2.0 on a Tinyhawk without even using new female PH 2.0 connectors on the battery side which shows me the PH 2.0 should be put in the garbage bin as all my PH 2.0 battery connectors are warn too (but batteries still good) and the PH 2.0 just doesn't last used as a battery connector. High electrical resistance is hard on lipo batteries and saw this problem with the original Blade Nano QX using 6mm brushed motors where after 8 or 9 charges the PH 1.2 mm connector used was already loose and LVC time was reduced making the battery appear bad until you check the voltage to see how early amperage drops due to a weak battery connection.
Ordering some of the 0.58g BETA FPV BT 2.0 1mm bullet connectors to try out but sure don't appreciate having to solder on battery connectors so hopefully GMB and other battery manufactures start using the BT 2.0 in place of the garbage PH 2.0 causing more issues than people realize.
Solid pins or folded?
Actually a very good question, no one has asked this yet!
Charles Warwick do you have solid pins and folded? This would be a great video.
@@YeaItsSlo I haven't got mine yet. Still waiting... The last eachine product I got, US65, had folded pins.
Charles Warwick even betafpv ships with folded pins so I’m willing to bet these were folded as well.
Folded. Thanks for asking it :-)
JST wires are longer than XT30 in your test. Such compare was unfair.
It really is a matter of scale. Bigger and more powerfull motors need more power.
am I missing something, or you really testes different connectors with different batteries? You just measure the difference between particular batteries, no connecters. The lost of current resistance of the connector is negligible. Why nobody commented such an obvious fact?
Different connectors - same batteries.
@@KremerFPV but on 0:42 you clearly have all 3 configuration solded already. What do I miss?