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Old 01-16-2020, 04:03 PM   #1
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2002 30' Classic S/O
Melbourne Beach , Florida
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This is why you replace older converters

I was going through my Airstream briefcase today and cleaning out old brochures and data when I found the owners manual for the Magnatek 7400 Series Battery Charger/Converter that I just replaced.

Here is what it says about voltage output:
Maximum voltage(*) - 13.8 volts at maximum load
Minimum voltage - 13.6 volts at maximum load

For both cases, I would imagine the voltage might might be higher at lower loads.

For the maximum voltage, the (*) note says 13.5 volts after the optional 13 hour timer expires.

1. I guess you could rationalize calling the converter with the option a 2-stage converter.

2. Does anyone think Airstream elected the option for the timer when purchasing the converters?

3. Even if the timer option is provided, 13.5 volts is too high for a float voltage.

I replaced mine with a Progressive Dynamics PD-9260. I did the same thing 5 years ago on my Safari 25.

Al
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2002 Classic 30 Slideout
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2001 Safari 25 RB Twin (Gone, but not forgotten)
WBCCI 1322, TAC FL-39, AIR 82265

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Old 01-16-2020, 04:33 PM   #2
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2005 28' Classic
Nicholasville , Kentucky
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Quote:
Originally Posted by Al and Missy View Post
I was going through my Airstream briefcase today and cleaning out old brochures and data when I found the owners manual for the Magnatek 7400 Series Battery Charger/Converter that I just replaced.

Here is what it says about voltage output:
Maximum voltage(*) - 13.8 volts at maximum load
Minimum voltage - 13.6 volts at maximum load

For both cases, I would imagine the voltage might might be higher at lower loads.

For the maximum voltage, the (*) note says 13.5 volts after the optional 13 hour timer expires.

1. I guess you could rationalize calling the converter with the option a 2-stage converter.

2. Does anyone think Airstream elected the option for the timer when purchasing the converters?

3. Even if the timer option is provided, 13.5 volts is too high for a float voltage.

I replaced mine with a Progressive Dynamics PD-9260. I did the same thing 5 years ago on my Safari 25.

Al


Al,

We have a 2005 Classic and Iím ready to change out my converter. Any warnings on removal and installation of the PD-9260?
I have ordered the Boondocker 4 stage converter BD-1260-CL?

Wondering if I need change this?

Kenny
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Old 01-16-2020, 08:07 PM   #3
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Quote:
Originally Posted by KYShelby View Post
Al,

We have a 2005 Classic and Iím ready to change out my converter. Any warnings on removal and installation of the PD-9260?
I have ordered the Boondocker 4 stage converter BD-1260-CL?

Wondering if I need change this?

Kenny
PM'd you.
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Al, K5TAN and Missy, N4RGO
2002 Classic 30 Slideout
S/OS #004
2013 Dodge 2500 Laramie 4x4 Megacab Cummins
2001 Safari 25 RB Twin (Gone, but not forgotten)
WBCCI 1322, TAC FL-39, AIR 82265

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Old 01-16-2020, 08:29 PM   #4
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Quote:
Originally Posted by KYShelby View Post
Al,

We have a 2005 Classic and I’m ready to change out my converter. Any warnings on removal and installation of the PD-9260?
I have ordered the Boondocker 4 stage converter BD-1260-CL?

Wondering if I need change this?

Kenny
The Boondocker 60 amp is what I have had in both of my trailers for about 5 years. No issues so far. The lead acid battery in my Safari is 4+ years old and still going. I really like the Boondocker!
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Old 01-17-2020, 05:45 AM   #5
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A pd9260 is a very good unit. It is not what Airstream uses. I would not replace it.
Quote:
Originally Posted by KYShelby View Post
Al,

We have a 2005 Classic and Iím ready to change out my converter. Any warnings on removal and installation of the PD-9260?
I have ordered the Boondocker 4 stage converter BD-1260-CL?

Wondering if I need change this?

Kenny
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Old 01-17-2020, 12:11 PM   #6
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1964 30' Sovereign
Ione , CA
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We bought our 1964 Airstream Sovereign 30' in June. Prior refurbisher had put in a new Interstate deep cycle marine battery and said everything was fine with the Univolt converter (that model was only used by Airstream in trailers in 1964...gee wonder why they switched?) :-(

Short version, when left plugged in the Univolt overcharged ('fried' for the non-technical) the Interstate battery. So we replaced the converter and plugged in a new Optima marine battery. All good now :-)
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Old 01-17-2020, 01:21 PM   #7
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Originally Posted by azflycaster View Post
A pd9260 is a very good unit. It is not what Airstream uses. I would not replace it.
I don't think anyone is thinking about replacing a PD9260. I think the question I was asked was whether to continue with a Boondocker or to change an order and get the PD. In short the answer I PM'd was buyer's choice. Plusses and minuses to each. I happen to like the PD9260.

Al
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2002 Classic 30 Slideout
S/OS #004
2013 Dodge 2500 Laramie 4x4 Megacab Cummins
2001 Safari 25 RB Twin (Gone, but not forgotten)
WBCCI 1322, TAC FL-39, AIR 82265

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