Schauer 48v charger

[2oldman]

Dang, nothing is going right with my 48v upgrade project.

The Cotek inverter went back because I couldn't get the AC connection plate off to hard wire it.

Now, my brand-new Schauer 48vdc charger shows 0 volts output on my perfectly good VOM -measured without being connected to batteries. The manual does not say anything about not doing that.. it just says 'the charger should not be used as a power supply for an extended period of time.' I don't think less than a minute qualifies for that.

I checked incoming AC and it's good, both on inverter and Honda generator. There are 4 internal fuses which are also good. Yes, when checking the output the VOM setting is for VDC (not AC).

I emailed the company but it's Friday and it's late back east. Anyone know anything about this?

[2oldman]

Boon Docker wrote:
Sounds like a pretty nice system.

Yah, thanks. Looking forward to it - and smaller wire!

I'll definitely have to be extra careful - 48v can bite!

[Boon_Docker]

Sounds like a pretty nice system.

[2oldman]

Boon Docker wrote:
i quess we will never know.

Hehe.. sorry, just waiting for my inverter to arrive. Should be here Tuesday. Company confirms I must have at least 20 volts on the terminals for it to work.

[MrWizard]

He has had a 24v system for quite sometime
He decided he wanted to go to a 48v system
Increase volts decrease amps and get a larger capacity inverter

[Boon_Docker]

2oldman wrote:
I asked about putting 2 24s in series before buying the Schauer. Iota said no,not with the 24v smart charger I have.

I will hook up 48v of battery and report back. Thanks.

I quess we will never know.

[2oldman]

From a few months ago:

Introduction post

[azrving]

Your profile says 24 volts. What's the 48 volt charger for. Tell us more.

[2oldman]

RoyB wrote:
Where are you going to get 48VDC from..

Check my profile.

[MEXICOWANDERER]

NO! NO! NO!





WORST CASE SCENARIO

[Boon_Docker]

2oldman wrote:

Gdetrailer wrote:
Is it a "smart" charger?

Yes it is. Supposedly will never overcharge, and has both a flooded and AGM setting.

I would readily agree with you, except for the part in the manual about not using it as a power supply for a long time. With that in consideration, does that change anything?

Quote from manual:
Can be used as a power supply or as a DC UPS ( Uninterruptible DC Power Supply ) when used with a battery.

So, looks like it needs to connected to a battery to operate.

[2oldman]

I asked about putting 2 24s in series before buying the Schauer. Iota said no,not with the 24v smart charger I have.

I will hook up 48v of battery and report back. Thanks.

[Gdetrailer]

smkettner wrote:

2oldman wrote:

Gdetrailer wrote:
Is it a "smart" charger?

Yes it is. Supposedly will never overcharge, and has both a flooded and AGM setting.

I would readily agree with you, except for the part in the manual about not using it as a power supply for a long time. With that in consideration, does that change anything?

Do you have a 24v converter? I would get identical and let them run in series.

Otherwise I would get a 48 volt IOTA.

48 Volt models also available. Call 888-828-1893

Specifically designed to run with or without a battery as a power supply.
Don't forget the IQ controller.

Care needs to be taken when considering putting SWITCHING power supplies in series.. Some power supplies connect the DC "negative" to the AC SAFETY GROUND.. Attempt to run one wired that way in series will result in lots of smoke escaping from your power supplies..

[Gdetrailer]

2oldman wrote:

Gdetrailer wrote:
Is it a "smart" charger?

Yes it is. Supposedly will never overcharge, and has both a flooded and AGM setting.

I would readily agree with you, except for the part in the manual about not using it as a power supply for a long time. With that in consideration, does that change anything?

That is marketing double speak for don't rely on this to operate 24/7 in "power supply" mode without batteries attached..

Connect a battery bank to it and report back..

[MEXICOWANDERER]

An itty bitty power relay that does not see power therefore remains open circuit can ruin your whole day. I ran into Schauer products with a 3-amp diode on the relay coil input that is supposed to be protection against reversed polarity.

But that was when Brontosauri were square dancing with Triceratops so it might be long ago outmoded info.