PINNED ZXD2400 Old + New 0-60V 0-50A Power Supply & Charger

[Burgerman]

So your mass, im lincs, so whos is the other one, wiltshire?

[sparkerted]

I'm Wilts, I already have a Tom lithium powerchair but getting spares and looking at doing lithium to the Dietz

[Burgerman]

So your the one!

[sparkerted]

Yes. I suppose I aught to contact Amy and order some cells

[Burgerman]

Yes since they take about 5 years to arrive by sea through a war zone! Then UK customs for a month.

[emilevirus]

I just received mine. It won't go past 25A. Any idea why?

[Burgerman]

25A?
No idea. Unless you are running on US electricity.

[Burgerman]

Are you in southern USA? Looked at IP adress.

While these run fine on your 120V they will operate are half the possible power.
To get the full 50A capability you need 240V AC. Why is this?
Because high output like 60V x 50A = 3000 watts. And thats the output. So it needs 3,300 watts from the wall @ 90% efficiency to do that full 50A power.

And while that 3.3kW works fine on a 240V AC system as used in most of the world (and in my bedroom for e.g), it cant do that on a 120V socket. Since 3.2kW would be a huge 27.5vAmps from your AC wall outlet.

People tell me that 240V IS possible in most US homes and so you would need to do this and add a 240V outlet to get maximum output.

[emilevirus]

Yep, that's what I thought so I made myself a 240v outlet but still limited.

[Burgerman]

I have 2 of these zxd things already, use them at 50A charge all the time.

So yours should have no problem at 240V doing the same.

So not sure what is happening. One option. It can be either 0-60V, 0-50A or 0-120V, 0-25A.

Are you sure your 240V is actually 240? Or 230?

Here we have a supposed 230V. When I masure it its generally 252 to 255V but thats close enought. Someplaces in the US have 120 and 240, others 208V. But 208 should still allow full power I think. Better ask shirley.

[shirley_hkg]

Photo of the screen helps.

[shirley_hkg]

Here shows input volt and output limit.

[Burgerman]

Good idea. Post a picture.

[ex-Gooserider]

So your mass, im lincs, so whos is the other one, wiltshire?

UPS tracking says I'm supposed to be getting it today between 2-6PM, so it should be waiting for me when I get home...

Will see what shows up!

ex-Gooserider

[Burgerman]

I expec about 10 days plus a week customs. Then 2 days local delivery.

Right now it says:
https://www.royalmail.com/track-your-it ... 18433434GB

Which isnt much use...

[shirley_hkg]

ex-Gooserider,
have you received the 2 wandering JST leads ?

[Burgerman]

Arrived, no leads at all? But I didnt really expect any.


Here it is.
Note I set it to 50 Amps, 28.80V to charge a set of lead bricks AGMs.

I swapped the knob for a nicer solid alloy one! Aliexpress...

Its a thing of beauty! Perfect super compact attention to detail for an unbeatable price and 3kw capable! 10 out of 10 and quite quiet.

What the pics dont show is the instant help in blue, along the very bottom of the display as you turn the knob.

[Burgerman]

Yep, that's what I thought so I made myself a 240v outlet but still limited.

See above, set to 50Amps.

[shirley_hkg]

Arrived, .

Bravo.

9 days , and nothing with a dent.

Did you get taxed ?

[Burgerman]

Nope!


I did a quick manual voltage calibration, added 00.39% to make it identical (+/- 0.05V) to the fluke 289 at 2.50V, 12.0V, 24.0V, 48.0V, 60.0V.

And tested current from the wall at idle. 8 watts. in 3 stage lead charger mode. And 16 watts set as power supply and at 28V no current draw. 18 watts when at float on my chair.

Since you can set it to turn off at when current drops anyway its irrelivant really.

Anderson!

Anderson and XLRfor powerchair charging

And set to charge gel here:
Volts 28.8
Amps 12 because thats the XLR maximum.
0.03A set INCORRECTLY!!! to send it from absorption/CV to float. (Should be set 0.30A here... Do as I say not as in image!)
Float set to 27.00V.

Also removed every screw and added some grease.

[sparkerted]

Mine arrived this morning, I got what I ordered. no taxes. not tried it yet. Thank you very much.

[emilevirus]

Yep, that's what I thought so I made myself a 240v outlet but still limited.

See above, set to 50Amps.

I got the older version with XT90 at the back.

[shirley_hkg]

[shirley_hkg]

I got the older version with XT90 at the back.

It's not older version , but it's in stock case, not fency aluminum outfit as above.

[emilevirus]

Next time I charge my batteries I'll post a picture

[Burgerman]

Post a few.
Inc the menu ones as the power output amps, or watts, or volts can be set as a max and minimum there too.

Yours is exacty the same internally, only difference is that some of us paid extra for a fancy alloy case.

[Burgerman]

Someone asked if it was isolated.
Between neg output and neutral is 35k ohms.
Between neg out and case or AC plug earth is 82k ohms.

So yes.

[Burgerman]

If in SUPPLY mode or in LEAD ACID mode you can set say 28.2V, 12A then it will do exactly that.

In supply Mode (TOP OF DISPLAY) it will keep doing this indefinitely. That may be all you need or want. Especially if you want a power supply or to do a top up at higher power during the day.

In LEAD ACID mode, (TOP OF DISPLAY) it will then do the following:

If you choose lead battery charger it then adds a current setting that you set to 00.20A, for e.g. which is the end of the CC/CV stage. My battery does reach this point in around 8 hours if used during the day. Not every battery will. Set yours to something that it does reach after 8 hours. Setting this to 00.3A should be safe for most batts. But it may go to float too early. Less is better if it eventually goes that low inside your 8 hours.

Then finally you want say 27.2V float, you must set this to 27.25V. Because in float on this charger it charges to the figure you set, then turns off and waits for voltage to fall to 0.1V less, then restarts. Repeatedly. So average this. Set it 0.05V higher than you wanted.

[shirley_hkg]

Six ZXD and 4 PowerLab 8 arrived their destinations save and sound.

Hallelujah .

AAAh …and a pair of rims too.

Merry Christmas.

[Burgerman]

Thanks for mine. 9 days! All good.

And I really like the way that the new screen and interface works. Iys all very intuitive. PROVIDED that you understand how a battery charges, and provided that you know what Bulk, CC, absorption, CV, and the place that voltage and end current etc all are. And how these fit together and the relationship between all these things. I do.

But I think many will be confused. So if thats the case feel free to ask!

Right now for e.g I am charging my NHS provided chair, the Dietz Sango Advanced. Charger is sat on the cushion, below.
This has R-net, and MOVE brand 76Ah gel batteries. Use same settings for all gel batteries around this size.

I am using the following settings.
Volts, 28.20V (for most cycles. 28.6V every 7th to 10th one to ensure a controlled overcharge).
Current 12A (Because of the limits of the XLR charge port, I would choose 25A if connecting via Andeson)
Float, 27.00V (I would choose 26.80V if leaving "on" after charge for a long period)
Terminate Absorption, go to float 0.3A (This works great on the MOVE battery. Set this to whatever 7 to 8 hours absorption current reads so it then goes to float. Start at say 00.4A and adjust as needed.
Time (WHITE) 6.00 (6 hours, and set this to "on" if float at 27.0. And "off" if set to long term float 26.8V)

For normal AGM batteries change just the CV/ABSORPTION Voltage. From 28.2 to 29.0V.
For odyssey, optima other pure lead low impedance batts, set Amps to 40A (if Anderson) and CV voltage to 29V.

Disregard Ohms... You cannot read battery resistance like this! It will tell you the resistance of lithium. Not lead.
And ignore settings in this pic.