I have a WEN Power Pro Model 9000 16HP generator. It has a female
funny-looking plug on the side labelled
DC 12V 8.3A
I have never known what this plug is for, nor can I find any info on
it in the manual or via Google. Some has said it is for charging the
generator batery. Could it be so?
If so, what wud the necessary plug/wire thingee be called so's I can
order same. I never saw one in the original box - now long gone.
On Monday, October 13, 2014 4:03:43 PM UTC-4, firstname.lastname@example.org wrote:
It's likely a 12V 8.3A output that can be used for whatever you might need
12V for, eg a small air compressor that's meant to run off a car.
It's not to charge the battery of the generator, the generator charges it's
battery with it's own charging circuit.
No way for us to identify the plug without being able to see it. Did
you check the users manual?
Yes, it does say that. But battery charging is about all it is good
for! The circuit on page 30 shows an AC winding connected to a bridge
rectifier, which provides 120 Hz DC pulses to the outlet.
I think the statement on Page 19 may be a typo or mis-translation.
Other similar generators have 12 Volt outlets specifically for charging
automotive batteries. The "DC plug with wires" shown on page 5, has
The 12 Volt outlet may look like a 120 VAC outlet with prongs bent at an
angle to each other. That is what is on my Generac and Yamaha
generators. The plug is the same for the two, but DC polarity is
On Monday, October 13, 2014 5:59:59 PM UTC-4, Fred McKenzie wrote:
If it's to be able to charge batteries, then it would have to be significantly
higher than 12V. An auto battery is about 25% charged at 12V, fully charged at 12.7, and chargers typically use 13.5 - 14V to do the charging. Which it may
be, it might just be labeled and spec'd incorrectly. If it's really 12V, it's
not going to work to charge an auto type battery. But it's definitely not
to charge the battery for the generator itself as the OP suggested. That's already taken care of by the generator.
On 10/13/2014 4:03 PM, snipped-for-privacy@Taiwan.com wrote:
The manual says that the connection in question is a 12V 8.3A power
_output_. As stupid as it seems it then goes on to tell us that it "is not
intended for use to charge automotive batteries." The cable for this
connector is supposed to be included with the generator, or so the packing
list says, and it has conductors with alligator clips on the end so the "no
batteries" stuff seems to make even less sense since alligator clips aren't
exactly conducive to other uses.
On Tuesday, October 14, 2014 9:16:52 AM UTC-4, email@example.com wrote:
No you didn't. I think Pico's point about 12.6V is it takes that or
higher to charge an auto battery. If you really have 12V, you can only
get to maybe 40% of fully charged and even that is going to take a long
time. Chargers use voltages higher that 12V. Your car for example, charges
the battery at ~13.5 to 14 volts. It's possible it puts out more than
12V, but if so they did a bad job with the marking and documentation,
because it doesn't say anything. And I agree with the poster that pointed
out that it only has a full wave rectifier, no caps, no voltage control,
nothing on the output.
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