DC Chargers vs. AC/DC Chargers

DC Chargers vs. AC/DC Chargers

Post by Timothy E. Ma » Wed, 28 Aug 1996 04:00:00



I am looking to buy a new charger and was wondering which one to buy.  I
have a friend that says DC chargers work better then AC/DC chargers....Is
this correct!

Please tell me the difference!!

Tim    
---
Tim May                  /   DC Systems, Oakbrook Terrace, IL

NAISSO-Chicago Webmaster /   1996 Impala SS "XTNCTSS"
http://www.enteract.com/cutem/~impala

 
 
 

DC Chargers vs. AC/DC Chargers

Post by James A. Colli » Wed, 28 Aug 1996 04:00:00




Quote:
>I am looking to buy a new charger and was wondering which one to buy.  I
>have a friend that says DC chargers work better then AC/DC chargers....Is
>this correct!

>Please tell me the difference!!

The difference is that with DC Chargers, you have to buy a DC Power
supply as well (unless you want to hook it up to your car battery).
AC/DC you don't.  You just plug it into the wall and go.  AC/DC
Chargers are a bit more expensive since they come with the DC power
supply internally.  However, they are certainly more convenient than
DC only chargers.  As for whether one is better than the other I can't
really say for sure.  My guess is that they are the same.  I use the
Tekin 112C (which is an AC/DC charger) and I sure do win a lot over
guys that use DC chargers.

                                                James

 
 
 

DC Chargers vs. AC/DC Chargers

Post by Matt Rank » Wed, 28 Aug 1996 04:00:00



: I am looking to buy a new charger and was wondering which one to buy.  I
: have a friend that says DC chargers work better then AC/DC chargers....Is
: this correct!

: Please tell me the difference!!

: Tim  

Tim, first think about where you will be using the charger, if you will be
running mostly at home or at a track with AC power, then an Ac/DC should
be just fine.  However, if you will mainly be running where there is no
available AC power, definately get a DC only charger.  In my experience,
the AC/DC chargers work well only when using AC power, when hooked to a DC
power source, they are slow and very unreliable.

If you have the money, the best combo is to have one AC charger and one DC
charger.

 
 
 

DC Chargers vs. AC/DC Chargers

Post by Chris Bradle » Wed, 28 Aug 1996 04:00:00


Quote:



> >I am looking to buy a new charger and was wondering which one to buy.  I
> >have a friend that says DC chargers work better then AC/DC chargers....Is
> >this correct!

> >Please tell me the difference!!

> The difference is that with DC Chargers, you have to buy a DC Power
> supply as well (unless you want to hook it up to your car battery).
> AC/DC you don't.  You just plug it into the wall and go.  AC/DC
> Chargers are a bit more expensive since they come with the DC power
> supply internally.  However, they are certainly more convenient than
> DC only chargers.  As for whether one is better than the other I can't
> really say for sure.  My guess is that they are the same.  I use the
> Tekin 112C (which is an AC/DC charger) and I sure do win a lot over
> guys that use DC chargers.

>                                                 JamesHe is right there is no difference but cost, and you don't have to lug a

power supply around.  I wish I had one!

Chris

 
 
 

DC Chargers vs. AC/DC Chargers

Post by Brion So » Thu, 29 Aug 1996 04:00:00



Quote:


> : I am looking to buy a new charger and was wondering which one to buy.  I
> : have a friend that says DC chargers work better then AC/DC chargers....Is
> : this correct!

> : Please tell me the difference!!

> : Tim  

> Tim, first think about where you will be using the charger, if you will be
> running mostly at home or at a track with AC power, then an Ac/DC should
> be just fine.  However, if you will mainly be running where there is no
> available AC power, definately get a DC only charger.  In my experience,
> the AC/DC chargers work well only when using AC power, when hooked to a DC
> power source, they are slow and very unreliable.

> If you have the money, the best combo is to have one AC charger and one DC
> charger.

The only difference is that you will no longer have the extra weight if
you go to a track with only DC power, But on the other hand you will have
to carry more weight to the tracks with AC power.

The Power supply you buy separately is usually better than the one that
comes in the charger. Is this difference in quality worth the extra $$$$.
That decision is yours.

The charging AC to DC is no different from a dedicated DC to an AC/DC
charger. (at least this is true of all tekin products) Tekin just puts the
guts from their DC only chargers into a bigger case with a transformer (I
know this because I took my 112C apart, did you know that thing has 3
fuses).  notice all of the chargers that are AC/DC they have a DC only
counterpart.

Thanks,

Brion Sohn

------------------
"the main thing to remember when being chased by a Black Rhino is,
 while they are great on the straight-a-ways they can't corner worth
 beans."
96 Nissan Pathfinder

"Power Is Nothing Without Control" - Pirelli Tire co.

 
 
 

DC Chargers vs. AC/DC Chargers

Post by Brian Simmond » Sat, 31 Aug 1996 04:00:00


DC Chargers will only run of DC Power source(that is a car battery for
example). Now as for AC/DC charger thay can run off both DC(car battery
ussauly 12 volt car battery) and AC(wall socket power). Now the advantges
of haveing a chrager which can except DC is that you can take a small
battery for it to plug into there for being trully portable. The
advantges of having a charger that works on AC is that you can run it at
home without having to drain out you big car batterys. The advantges of
having both is that you have the choice. So chargers are either DC only,
AC only or AC/DC(both). Now most top line chargers are expensive to built
so to keep the price down they use DC becuase DC power is what the all
charges use. Now if these good chargers were to run on AC as well they
wounld have to include a AC to DC convertor(in other words they will ahve
to have a convertor to take in AC power and trun it into DC). This 1.
Cost 2. Causes the cost of the chargers to rise 3.Most need a somooth
supply of DC power meanning they need a good AC to DC convertor which
costs 4. The charger is bigger and heavier. So what the big commpanys do
are make the charger DC only so they can invest the money on performance
and keep the charger light and small. Now if you buy a DC charger for
often they are the best, and you want to run you DC only cahrger from a
wall unit you will need to but a AC to DC convertor. But one arould 5-7
amps is fine. This si a sperte convertor which your chargers can connect
to and run off. Ring Tower Hobbies at 1-800-637-6050 for technincal help.
I recommand that is you have the money buy"Compettion Electronics 3400
Turbo Thirty w/Turbo Flex($369.99)" that only if you want the best if you
are looking for a good budget model get the "Hi-Tec/RCD CG-325 w/Battery
cycler ($69.99)"There are good charger but they are both DC only so you
will want to run off AC as well so you need to get a AC to DC Convertor.
For a AC to DC convertor the cheapest that works well is a "Pyramid 7 amp
reg. supply($34.96)" this will run your charger fine. Well there you go
happy racing!

John Simmonds
--------------------------------------------------
"Where you are in life is, Where you are standing"
--------------------------------------------------

 
 
 

DC Chargers vs. AC/DC Chargers

Post by Dave Findl » Sun, 01 Sep 1996 04:00:00


Something else to consider.  I you race, you will eventually need a power
supply for other things (dyno, truers, etc).  Buying a DC charger and a good
30-amp power supply might actually save you money and hassle later.  (I wish
somebody had told me this when I started.)

Finster

 
 
 

DC Chargers vs. AC/DC Chargers

Post by James Colli » Sun, 01 Sep 1996 04:00:00


Quote:

>Something else to consider.  I you race, you will eventually need a power
>supply for other things (dyno, truers, etc).  Buying a DC charger and a good
>30-amp power supply might actually save you money and hassle later.  (I wish
>somebody had told me this when I started.)

True.  However, that stuff costs.  Even if you race, you might never
need those things.  I win fairly consistently at my track and I have
never used dynos or the like (although I have a com lathe I use every
so often.  Then I borrow my friend's variable power supply)... :)

                                                James

 
 
 

DC Chargers vs. AC/DC Chargers

Post by Jeffrey R. Gilliga » Mon, 02 Sep 1996 04:00:00


Quote:

> >Something else to consider.  I you race, you will eventually need a power
> >supply for other things (dyno, truers, etc).  Buying a DC charger and a good
> >30-amp power supply might actually save you money and hassle later.  (I wish
> >somebody had told me this when I started.)

Until recently, most of the AC or AC/DC chargers were inferior in
quality compared to the DC only chargers.  Most of the AC-AC/DC chargers
were of the timer variety, not a good way to keep batteries in good
condition.  Some of the common AC-AC/DC manufacturers like Pro-Tech made
peak detection chargers, but these were not much better at keeping
batteries alive than the timer chargers.

Now, there are several AC-AC/DC chargers that work well.  At the top of
the list would be the Tekin BC112C.  Class also makes a nice AC charger.

ALL chargers actually run from DC, if you purchase a charger that will
work on AC current, you are also purchasing a power supply with it.  It
is only powerful enough to run the charger though.

My opinion is to buy a 15-30 amp power supply and a high quality DC
charger.  This will give you the flexibility of AC or DC operability.
The cost of a 15 amp power supply and a decent charger will be very
close in price to an AC-AC/DC charger.

--

WWW:   http:\\www.iwaynet.net\~jgilligan

 
 
 

DC Chargers vs. AC/DC Chargers

Post by Brion So » Mon, 02 Sep 1996 04:00:00


 > ALL chargers actually run from DC, if you purchase a charger that will

Quote:
> work on AC current, you are also purchasing a power supply with it.  It
> is only powerful enough to run the charger though.

> My opinion is to buy a 15-30 amp power supply and a high quality DC
> charger.  This will give you the flexibility of AC or DC operability.
> The cost of a 15 amp power supply and a decent charger will be very
> close in price to an AC-AC/DC charger.

> --

> WWW:   http:\\www.iwaynet.net\~jgilligan

The only charger that I know of that comes with a higher amprage power
supply is the Tekin 112C, It has a 12AMP supply.  It's normally ment to
run a second 112A or the Discharger, but I be you could hook something
else up to it instead.

Thanks,

Brion Sohn

------------------
"the main thing to remember when being chased by a Black Rhino is,
 while they are great on the straight-a-ways they can't corner worth
 beans."
96 Nissan Pathfinder

"Power Is Nothing Without Control" - Pirelli Tire co.

 
 
 

DC Chargers vs. AC/DC Chargers

Post by Brion So » Tue, 03 Sep 1996 04:00:00



Quote:

> I notice that the Tekin DC100L charger only charges one pack of battery
at a time,
> and there is an adjustable amperage knob. Most of the time, when
charging I set the
> amperage to a 5AMP setting. But I was wondering if I could solder
another pair of
> wires at the chargers terminals and charge 2 packs at a time, while I
turn up the
> amperage to 10AMPs. Isn't it the same? That's on the basis that both the
packs are
> similiar.

> Then again, how will the charger tell which pack has peak when the 2
packs are
> different?

> Does anyone have any suggestions?

> Ivan


No, because the Voltage would be different If you want to do that you must
have a charger that will charge 12 Batteries at a time.  If your charger
can't you will probably blow a fuse and or your charger itself.

Thanks,

Brion Sohn

------------------
"the main thing to remember when being chased by a Black Rhino is,
 while they are great on the straight-a-ways they can't corner worth
 beans."
96 Nissan Pathfinder

"Power Is Nothing Without Control" - Pirelli Tire co.

 
 
 

DC Chargers vs. AC/DC Chargers

Post by Ivan Teo Cheng Tie » Wed, 04 Sep 1996 04:00:00


I notice that the Tekin DC100L charger only charges one pack of battery at a time,
and there is an adjustable amperage knob. Most of the time, when charging I set the
amperage to a 5AMP setting. But I was wondering if I could solder another pair of
wires at the chargers terminals and charge 2 packs at a time, while I turn up the
amperage to 10AMPs. Isn't it the same? That's on the basis that both the packs are
similiar.

Then again, how will the charger tell which pack has peak when the 2 packs are
different?

Does anyone have any suggestions?

Ivan

 
 
 

DC Chargers vs. AC/DC Chargers

Post by Jeff Th » Wed, 04 Sep 1996 04:00:00



Quote:

>I notice that the Tekin DC100L charger only charges one pack of battery at a
time,
>and there is an adjustable amperage knob. Most of the time, when charging I
set the
>amperage to a 5AMP setting. But I was wondering if I could solder another pair
of
>wires at the chargers terminals and charge 2 packs at a time, while I turn up
the
>amperage to 10AMPs. Isn't it the same? That's on the basis that both the packs
are
>similiar.

No, it's not. The pack with less resistance will probably charge at a higher
rate.

Quote:
>Then again, how will the charger tell which pack has peak when the 2 packs are
>different?

You can't. First of all, the voltage will be so unstable that'll it probably
false peak. The charger will stop when one pack is peaked, but the other is
cooked, because the peak point of both packs are very lightly not the same.

Quote:
>Does anyone have any suggestions?

Don't do it!