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Author Topic: Single Eltek charger unit that does 116V 2000W  (Read 2106 times)

Doctorbass

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Single Eltek charger unit that does 116V 2000W
« on: October 06, 2017, 08:41:03 PM »

Hi guys i have found great source of power supply that can directly charge at 2000W at 116V.  I MUST SHARE THAT TO YOU!

Those can be programmed like the Eltek flatpakc S 1800W and Flatpack 2 2000W but you DONT NEED TO USE 2 IN SERIE... these Eltek Valere 241115.805  can direcylt supply the FULL VOLTAGE for your Zero!

at 115$ USD+ shipping  these are a very grat find for 2000W.

You put 3 of these for about 500$ and get 6000W charging and 30A level II charging!

http://www.ebay.com/itm/Eltek-Valere-241115-805/172862832654?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908131621%26meid%3D2194e023a7f14f2a98e467b0bbd2e3d3%26pid%3D100678%26rk%3D2%26rkt%3D15%26sd%3D263201541221&_trksid=p2481888.c100678.m3607&_trkparms=pageci%253A491ba898-aaa3-11e7-b73a-74dbd180fd32%257Cparentrq%253Af21ac45115e0abc052957deafffaefee%257Ciid%253A1

Doc
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grandpa

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Re: Single Eltek charger unit that does 116V 2000W
« Reply #1 on: October 06, 2017, 09:16:16 PM »

Interresting !

Be careful, in your link, products are indicated as "used"
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Starpower

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Re: Single Eltek charger unit that does 116V 2000W
« Reply #2 on: October 06, 2017, 10:30:10 PM »

From the spec sheet it looked to me that it is derated at input voltages below 185Vac. At 116Vac it appears to be closer to 1200W output. Am I missing something?
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Doctorbass

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Re: Single Eltek charger unit that does 116V 2000W
« Reply #3 on: October 06, 2017, 10:36:02 PM »

From the spec sheet it looked to me that it is derated at input voltages below 185Vac. At 116Vac it appears to be closer to 1200W output. Am I missing something?

Yes those work on 120V as well as 240V.. but for quick charging you better use 240V ;)

Doc
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Doctorbass

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Re: Single Eltek charger unit that does 116V 2000W
« Reply #4 on: October 06, 2017, 10:37:53 PM »

Interresting !

Be careful, in your link, products are indicated as "used"

You are right those are used.. but those are tough equipment ( spec mention Very high MTBF > 350 000 hours!!)  and i know no one that ever had any problem with used server power supply from now.. I buy used power supply since 10 years and everyone worked fine. ;)

But thanks for reminding... I thik this is an amazing deal anyway!

Doc

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Doctorbass

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Re: Single Eltek charger unit that does 116V 2000W
« Reply #5 on: October 06, 2017, 10:41:27 PM »

Spec say: s capable of taking both AC and DC input voltages of from 85 to 300V

that mean if you want tou can use one of tehse to charge your Zero from ANOTHER ZERO.. as these can take DC at the input as low as 85Vdc 8)

http://www.rectifier.co.za/ac-dc%20power%20supplies/eltek/pdf/2000%20HE%20WOR.pdf

Doc
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hubert

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Re: Single Eltek charger unit that does 116V 2000W
« Reply #6 on: October 06, 2017, 11:05:48 PM »

The label shows 110-125.

Does it mean it can't get below 110V output? Then it would not be very useful to charge a Zero whose battery can be as low as 90V. Unless there is a trick like CAN bus programming to some other limit voltages...
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wijnand71

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Re: Single Eltek charger unit that does 116V 2000W
« Reply #7 on: October 07, 2017, 12:23:08 AM »

Ha, Yes saw them a while ago on the Eltek site. I will stick with a couple of Eltek's 1800's in series due to the higher power rate vs formfactor though.

But maybe they can be programmed in the same way as a "normal" flatpack can be set to a different default Voltage level?
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Doug S

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Re: Single Eltek charger unit that does 116V 2000W
« Reply #8 on: October 07, 2017, 01:28:33 AM »

Does it mean it can't get below 110V output?

No. That just means that the SETPOINT can't be lower than 110V. This would seem to be a Constant Power/Constant Voltage (CP/CV) supply, which means it'll drive the output until it reaches either the voltage setpoint or 2000 watts, whichever comes first. So for a fairly depleted Zero, at say 90V, it'll hit its power limit at 22.2 amps, and will hold that power output until it hits the voltage setpoint (at, say, 116V, at which point the charging current will have dropped to 17.2 amps). Then it will hold 116V until the battery absorbs all the coulombs it can, and is fully charged. Because the power supply behaves this way, they can also easily be paralleled: Each power supply will provide 2000 watts into the load, again until the setpoint is reached, without affecting any of the other supplies. Power supplies for rack equipment are designed this way so you can use one or as many as you need to power the equipment in the rack.
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Doctorbass

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Re: Single Eltek charger unit that does 116V 2000W
« Reply #9 on: October 07, 2017, 01:37:45 AM »

Bwt the purpose these are made for is to chage battery ;)

These can go as low as 89.2Vdc  and as high as 171.6Vdc. These are flatpack 2 so these are well documented for DIY projects and programming

I bought 3 at 90$ offer for each and it was accepted 8)

This will complete my 3x SCv2 for a total of 16kw charging power ;D


Doc
« Last Edit: October 07, 2017, 01:39:19 AM by Doctorbass »
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Doctorbass

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Re: Single Eltek charger unit that does 116V 2000W
« Reply #10 on: October 07, 2017, 01:51:00 AM »

For those that have electric car and would like to tweak the charging power.. here is a version that support from 300VDC to 400Vdc at 2500W output... be careful these voltage are lethal... in fact.. way more lethal than 116V...


http://www.ebay.com/itm/Eltek-241119-825-rectifier/172657054416?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20140107095009%26meid%3Dda559ca63f614d319d0b9a96143b644e%26pid%3D100040%26rk%3D2%26rkt%3D4%26sd%3D172657054416&_trksid=p2046732.c100040.m2060

Doc
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willbrunner

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Re: Single Eltek charger unit that does 116V 2000W
« Reply #11 on: October 07, 2017, 02:31:43 AM »

Thanks for the tip, Doc.  I bought one and will try it out on my FX.  Will keep you all posted.
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willbrunner

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Re: Single Eltek charger unit that does 116V 2000W
« Reply #12 on: October 15, 2017, 12:25:54 PM »

Mine arrived yesterday.  I designed a backplane PCB and ordered on OSHPark.  I will share the design if it works.
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Doctorbass

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Re: Single Eltek charger unit that does 116V 2000W
« Reply #13 on: October 15, 2017, 09:54:18 PM »

Mine arrived yesterday.  I designed a backplane PCB and ordered on OSHPark.  I will share the design if it works.

Awsome.! I might be interested if you build more of these pcb .

Mine should arrive soon

Doc
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originalspacerob

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Re: Single Eltek charger unit that does 116V 2000W
« Reply #14 on: October 16, 2017, 08:24:41 AM »

Just sent in a bid and seeing if they will accept it. Will see what happens. Will be fun to see where this goes. Thanks for sharing Doc. Just found tour youtube channel. Great information.


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