DC-DC Charger, 30A

Repcom Communications
Post Reply
User avatar
Family_Dog
Moderator
Moderator
Posts: 12765
Joined: Tue May 22, 2007 10:09 am
Town: Klerksdorp
Vehicle: Hilux DC SFA, Hilux 2.7 DC, Hilux 2.7 SC, Prado 95 VX
Real Name: Eric
Club VHF Licence: HC101
Location: Klerksdorp, NW
Contact:

Thu Dec 13, 2012 2:02 pm

We have been testing a Dc - DC Charger for the past month. Specs for the 30A unit, model SDC-1130, are as follows:
SDC instruction manual Waeco.pdf
(152.81 KiB) Downloaded 180 times
As an introduction to the product, we are offering this at a price of R2200 plus R85 for courier delivery in the main centres.

The conditions are:

1. Please test the unit thoroughly in accordance with the attached brochure and report back to me.
2. The unit is NOT waterproof and should be mounted where it will NOT ingest water. Such damage is not covered by Warranty.
3. The voltage output is user-selectable in accordance with the table in the attachment for the following voltages:
- 13.2; 13.5; 14.2; 14.6; 14.8v.
4. The unit should NOT be mounted on top of an existing battery, which may generate gas vapours while charging.
5. The unit should not be mounted close to any normally high-temperature positions.
6. Mount the unit away from any location where inflammable gases may accumulate, allowing for air-circulation for the internal fan.

The normal selling price for the SDC-1130 is R2520.00 but the Introductory offer is R2200 with free shipping.

I will post pictures of the unit later.


-F_D
Image

White Fang: 1999 2.7i DC Raider 4x4
Bull Dog: 1987 4Y-EFI 2.2 DC 4x4
Pra Dog: 1998 Prado VX 3.4
Hound Dog: 2000 2.7i SC 4x4


One Staffie, One Jack Russell, One Ring Neck Screecher, 17 Fish of questionable heritage


Image

User avatar
Family_Dog
Moderator
Moderator
Posts: 12765
Joined: Tue May 22, 2007 10:09 am
Town: Klerksdorp
Vehicle: Hilux DC SFA, Hilux 2.7 DC, Hilux 2.7 SC, Prado 95 VX
Real Name: Eric
Club VHF Licence: HC101
Location: Klerksdorp, NW
Contact:

Thu Dec 13, 2012 3:33 pm

OK< Some points to consider:

The Importer sent me the attached PDF file above, which is identical to the brochure supplied with the units we stock except the name of our units is "Motormate". I don't know who copied whom!!

I did some tests on both the 14.2v scale as well as the 14.6v scale. In both instances, the DC-DC Converter produced the relevant DC output at INPUT voltages ranging from 9.6v to 16.2v. The load was a Hella 60w 12v Spot light. I let the unit run for 15 minutes and the internal fan does not even switch on, guess it is meant more for tropical use and a 5A nominal load is far from a 30A load. At all times the unit was cool to the touch, but it must be borne in mind that these quick evaluation tests were performed under bench conditions and not in real life where the unit might be stuck in a hot engine bay.

In all cases the meter on the left measures the DC input to the unit while that on the right measures the voltage supplied to the globe.

Conclusion: With the limited testing I have done, I am quite confident the unit will perform as expected and I have high hopes for it.

Here are some pics - I am not by any means a ChrisF, please bear with the shaky handheld "mik 'n druk" snaps.

P1030544.JPG
9.44v Input, 14.25v Output.
(108.89 KiB) Downloaded 1564 times
P1030545.JPG
16.2v Input, 14.25v Output.
(109.61 KiB) Downloaded 1564 times
P1030536.JPG
Top view - the lens distorts the image
(90.29 KiB) Downloaded 1564 times
P1030539.JPG
Side view
(97.86 KiB) Downloaded 1564 times
P1030537.JPG
End view
(94.45 KiB) Downloaded 1564 times
P1030542.JPG
The busy end
(87.67 KiB) Downloaded 1564 times
P1030546.JPG
...and finally the "Load", a 1970s Hella Stainless Steel spot, irreplaceable gem! This was fitted with a 60w globe.
(102.19 KiB) Downloaded 1564 times

-F_D
Image

White Fang: 1999 2.7i DC Raider 4x4
Bull Dog: 1987 4Y-EFI 2.2 DC 4x4
Pra Dog: 1998 Prado VX 3.4
Hound Dog: 2000 2.7i SC 4x4


One Staffie, One Jack Russell, One Ring Neck Screecher, 17 Fish of questionable heritage


Image

User avatar
Cinco
Low Range 4WD
Low Range 4WD
Posts: 100
Joined: Mon May 21, 2012 4:56 pm
Town: Germiston
Vehicle: Hilux Vigo
Real Name: Ian
Club VHF Licence: HC243
Location: Johannesburg

Thu Dec 13, 2012 5:02 pm

Eric

Looks good.
I see this unit can be used both as a battery charger and a constant power supply.
Questions if I may:
1)As a constant power supply I presume the DC input cables would be connected to my Hilux's main battery and not the deep cycle battery?
2)As a battery charger , in order to charge my deep cycle battery, how would I wire it up?
3)How would I accomodate my solar panel?
4)Which of the battery types applies to a deep cycle batt?
5) Is the "External Control Wire" connected to the ACC point on your ignition switch so that it switches off with the ignition?
I currrently have a NL intelligent solenoid btween my main battery and the deep cycle and there is a regulator connected to the deep cycle battery and the SP.
I apologise for all the questions. :crazy: :crazy:
Thank you.
Wishing my life away till the next trip!

User avatar
Family_Dog
Moderator
Moderator
Posts: 12765
Joined: Tue May 22, 2007 10:09 am
Town: Klerksdorp
Vehicle: Hilux DC SFA, Hilux 2.7 DC, Hilux 2.7 SC, Prado 95 VX
Real Name: Eric
Club VHF Licence: HC101
Location: Klerksdorp, NW
Contact:

Thu Dec 13, 2012 10:20 pm

Ian,

1)As a constant power supply I presume the DC input cables would be connected to my Hilux's main battery and not the deep cycle battery?
Correct

2)As a battery charger , in order to charge my deep cycle battery, how would I wire it up?
Take the output of this unit directly to your DC battery, but have no other charging means connected to it simultaneously.

3)How would I accomodate my solar panel?
A solar panel has an off-load voltage output of some 19-22v, which is outside the scope of this charger. We were going to develop a dual input for the 6A charger but decided against it for reasons of keeping matters simple. A dedicated SP regulator is the answer.

4)Which of the battery types applies to a deep cycle batt?
That would be the higher voltage, around 14.2v, SLA (Sealed Lead Acid)

5) Is the "External Control Wire" connected to the ACC point on your ignition switch so that it switches off with the ignition?
Yes indeed, or even through means of an external toggle switch./b]

Remote on/off controls
The external lead wire on the rear panel is used for remote
switching with on-board voltage (e.g. ignition from the vehicle
engine or external switch). Note: The device power on/off switch
must be switched off after the external lead wire is connected.
I currrently have a NL intelligent solenoid btween my main battery and the deep cycle and there is a regulator connected to the deep cycle battery and the SP.

I would not use two different methods of charging the battery - only the one or the other. Charging a battery at 30A is hefty and the battery will really only take a matter of minutes at that rate before it is fully charged.

Hope this helps you...


-F_D
Image

White Fang: 1999 2.7i DC Raider 4x4
Bull Dog: 1987 4Y-EFI 2.2 DC 4x4
Pra Dog: 1998 Prado VX 3.4
Hound Dog: 2000 2.7i SC 4x4


One Staffie, One Jack Russell, One Ring Neck Screecher, 17 Fish of questionable heritage


Image

User avatar
CasKru
Moderator
Moderator
Posts: 24224
Joined: Tue Dec 04, 2007 11:52 am
Town: Benoni
Vehicle: '94 Hilux Raider 2.4i (22RE) DC 4x4
Real Name: Cassie
Club VHF Licence: B15
Location: Rynfield

Wed Jan 09, 2013 10:42 am

Sorry for asking but are the price on these units still on the introductory price?
To God be the glory

User avatar
Family_Dog
Moderator
Moderator
Posts: 12765
Joined: Tue May 22, 2007 10:09 am
Town: Klerksdorp
Vehicle: Hilux DC SFA, Hilux 2.7 DC, Hilux 2.7 SC, Prado 95 VX
Real Name: Eric
Club VHF Licence: HC101
Location: Klerksdorp, NW
Contact:

Wed Jan 09, 2013 10:58 am

Yep, while I still have the current stock, it is indeed. Let me know if you wish to test one - no obligation.


-F_D
Image

White Fang: 1999 2.7i DC Raider 4x4
Bull Dog: 1987 4Y-EFI 2.2 DC 4x4
Pra Dog: 1998 Prado VX 3.4
Hound Dog: 2000 2.7i SC 4x4


One Staffie, One Jack Russell, One Ring Neck Screecher, 17 Fish of questionable heritage


Image

User avatar
CasKru
Moderator
Moderator
Posts: 24224
Joined: Tue Dec 04, 2007 11:52 am
Town: Benoni
Vehicle: '94 Hilux Raider 2.4i (22RE) DC 4x4
Real Name: Cassie
Club VHF Licence: B15
Location: Rynfield

Wed Jan 09, 2013 11:04 am

I have difficulty in comprehending the use of such a device or I'm just being dumb. What would one typically use it for?

Always willing to be a test subject :thumbup: :thumbup: has worked well with the meds so far :twisted:
To God be the glory

User avatar
Family_Dog
Moderator
Moderator
Posts: 12765
Joined: Tue May 22, 2007 10:09 am
Town: Klerksdorp
Vehicle: Hilux DC SFA, Hilux 2.7 DC, Hilux 2.7 SC, Prado 95 VX
Real Name: Eric
Club VHF Licence: HC101
Location: Klerksdorp, NW
Contact:

Wed Jan 09, 2013 11:16 am

More useful to people who go touring for days/weeks on end. Roughly the same idea as the C-Tek dual charger except this one does not feature a solar panel input. We actually ordered 20A DC-DC Chargers but they were sold out and sent us the 30A unit instead.

Basically, I would like someone to test it under real-life conditions: Static testing on a bench is one thing, but I need more input, be it positive or negative. I received these units probably just too late for the Christmas tourists but if someone is going on a Botswana trip or similar, please do contact me if you would like to test the unit.

Pieter, is it not timne you went travelling again? :mrgreen:

-F_D
Image

White Fang: 1999 2.7i DC Raider 4x4
Bull Dog: 1987 4Y-EFI 2.2 DC 4x4
Pra Dog: 1998 Prado VX 3.4
Hound Dog: 2000 2.7i SC 4x4


One Staffie, One Jack Russell, One Ring Neck Screecher, 17 Fish of questionable heritage


Image

User avatar
ThysdJ
Moderator
Moderator
Posts: 16668
Joined: Wed Oct 24, 2007 7:31 am
Town: Brackenfell
Vehicle: 2010 Hilux D4D 3.0 D/C 4x4
Real Name: Thys
Club VHF Licence: HC102
Location: Brackenfell
Contact:

Wed Jan 09, 2013 1:14 pm

My next long trip is only in June, so if anybody can please do the tests before then, so that I can decide whether this is going to work for me.. :twisted: :twisted: :twisted:

I'll also get hold of a solar panel for that trip, because it seems like we are going to be out in the bush for long stretches at a time. :silent: :silent:
Thys de Jager
CEO and Refreshments Manager at Team Offroad.

2010 Hilux 3.0 D4D D/C 4x4 with GOMAD "Brood" Canopy. Tripod.
1997 Jeep Wrangler TJ 4.0 Sport. The original SFA. AGA... Gooi kole
email: thys@teamoffroad.co.za

Like Team Offroad on Facebook...

User avatar
george
Monster Truck
Monster Truck
Posts: 6604
Joined: Wed May 23, 2007 11:16 am
Town: Langebaan
Vehicle: Prado 90 VX 3.4 V6
Real Name: George
Club VHF Licence: HC107
Location: Langebaan
Contact:

Fri Feb 01, 2013 7:47 am

Hi Eric.

Just a few questions.
Currently I have a solenoid that connect my batteries with thick welding cables.
The way that I see it is that I do not need the welding cables and will replace that with thinner cables(4mm).
Do you run the input wires from a relay that will switch off if you switch off the car.
I have a SP with a Stecca controller. In my currant system the SP is connected permanently while I am driving and the controller picks up when the alternator is charging and then switch the Sp "off" or something like that.Basically I do not had to switch manually between SP and alti.
How will this work.Will there have to be a manual switch between the charger and SP.
Hope my questions make sense.

P.S Would have love to test it for you but my trip is over :thumbdown:
"The World is a book, and those who do not travel read only a page.-Saint Augustine"

User avatar
Family_Dog
Moderator
Moderator
Posts: 12765
Joined: Tue May 22, 2007 10:09 am
Town: Klerksdorp
Vehicle: Hilux DC SFA, Hilux 2.7 DC, Hilux 2.7 SC, Prado 95 VX
Real Name: Eric
Club VHF Licence: HC101
Location: Klerksdorp, NW
Contact:

Fri Feb 01, 2013 8:51 pm

George, you need to go on another trip so I can ship one to you to try. ;)

Regarding wiring: You could go with thinner cable than welding cable, but you would need slightly thicker than 4mm cabling., I guess at least 12-16mm wiring would be acceptable. Remember, there is always a voltage drop if you're running cabling from the alternator to the rear when the battery is in the canopy. Now, the average alternator charges at around 14.2v for a while and then reverts to around 13.8v, which is the norm for a high cycle battery. Charging a battery in the canopy could see an average voltage drop of around 0.5v or thereabouts, depending on the amount of current been drawn by the battery under charge. So the battery will never fully charge until the voltage rises to 13.8v for a high cycle battery at which time the charging current would be fairly low. But this is no good for any other kind of battery such as a deep cycle one that requires a charging voltage of 14.2v or a new Crystal type which requires a charging voltage of 14.8v. This is where the ADC-1130 comes into operation: Whatever the input voltage to it will be (between 10v - 16v), it will automatically keep the output voltage constant to the voltage which is user-selected.

The over-all current consumption in Amps would remain pretty much the same as it would be without the unit, so this will mean that while you could go slightly lighter on the cables as you are not overly concerned about voltage drop now because the unit is unaffected by this, the actual charge current would remain pretty much the same as it was before adding the SDC-1130. The unit is rated at 30 Amps, all this means is that it will handle a maximum load of 30A but the actual rate of charge will be lower as determined either by the battery on charge or even the current consumption of something like a fridge.

You would still use the SP controller, this in turn would feed the unit. The controller would fit in where the fuses are indicated in the attached sketch. This controller would then determine which input to use, as at present.
SDC1130-web.jpg
SDC1130-web.jpg (37.21 KiB) Viewed 3427 times

-F_D
Image

White Fang: 1999 2.7i DC Raider 4x4
Bull Dog: 1987 4Y-EFI 2.2 DC 4x4
Pra Dog: 1998 Prado VX 3.4
Hound Dog: 2000 2.7i SC 4x4


One Staffie, One Jack Russell, One Ring Neck Screecher, 17 Fish of questionable heritage


Image

User avatar
Maniac
Low Range 4WD
Low Range 4WD
Posts: 143
Joined: Tue Dec 18, 2007 5:24 pm
Town: Durbanville
Vehicle: 1993 Hilux SFADC
Real Name: Manie
Club VHF Licence: X25
Location: Durbanville

Sat Feb 02, 2013 8:57 pm

Mantech also sells these chargers in Cape Town....


Sent from my iPad using Tapatalk HD
93 D/C Hilux Not 4Y, 33" Bighorns, 29 MHz, OME 3" Lift
No Ditch Too Deep, No Hill Too High!!!

Liaan
Low Range 4WD
Low Range 4WD
Posts: 202
Joined: Thu Aug 28, 2008 5:56 pm
Town: Lichtenburg
Vehicle: 99 2.7 DC 4x4
Real Name: Liaan
Club VHF Licence: AC1

Fri Jul 05, 2013 12:28 pm

I am going to KTP and Mabuasehube end of August.

I am willing to test one and report back(and buy it if it works(that it would I am certain))

I can mount it inside my Patrols cabin(my duel batt is inside as well.)
Almal kry die voorreg om onnosel te wees, net jammer party maak misbruik daarvan


99 2.7 Raider 4x4 D/c
OME and some more...


Gebore in die BLOU BUL hoofstad

User avatar
Family_Dog
Moderator
Moderator
Posts: 12765
Joined: Tue May 22, 2007 10:09 am
Town: Klerksdorp
Vehicle: Hilux DC SFA, Hilux 2.7 DC, Hilux 2.7 SC, Prado 95 VX
Real Name: Eric
Club VHF Licence: HC101
Location: Klerksdorp, NW
Contact:

Fri Jul 05, 2013 6:54 pm

Liaan, there is a test unit out with Otto - Bosfebok here on the forum. He is returning the unit as he already had a NL system. As soon as I get it back, probably next week, you're welcome to try it out. Both Cassie & Otto have done extensive testing of these units so we know the ins & outs of them now.


-F_D
Image

White Fang: 1999 2.7i DC Raider 4x4
Bull Dog: 1987 4Y-EFI 2.2 DC 4x4
Pra Dog: 1998 Prado VX 3.4
Hound Dog: 2000 2.7i SC 4x4


One Staffie, One Jack Russell, One Ring Neck Screecher, 17 Fish of questionable heritage


Image

User avatar
Family_Dog
Moderator
Moderator
Posts: 12765
Joined: Tue May 22, 2007 10:09 am
Town: Klerksdorp
Vehicle: Hilux DC SFA, Hilux 2.7 DC, Hilux 2.7 SC, Prado 95 VX
Real Name: Eric
Club VHF Licence: HC101
Location: Klerksdorp, NW
Contact:

Mon Jul 08, 2013 3:14 pm

Liaan, Otto is posting the charger back to me on Wednesday, you can collect it anytime next week, say from Tuesday onwards.


-F_D
Image

White Fang: 1999 2.7i DC Raider 4x4
Bull Dog: 1987 4Y-EFI 2.2 DC 4x4
Pra Dog: 1998 Prado VX 3.4
Hound Dog: 2000 2.7i SC 4x4


One Staffie, One Jack Russell, One Ring Neck Screecher, 17 Fish of questionable heritage


Image

Post Reply

Return to “Repcom Communications”

  • Information
  • Who is online

    Users browsing this forum: No registered users