Got my GT inverter running off a 24v battery bank. Find it real interesting that a 1200w Inverter that is supposed to be able to max out at 2400w only runs a…
Video Rating: 4 / 5
Feb
22
PART 2:Connecting a 24v Battery Bank to a 12v 1200w Power Jack GT Inverter
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Daniel Wilson says:
February 22, 2015 at 12:19 pm (UTC 0)
Im suprised your even pulling 500-600w with those skinny as cables.
Personally I would have 4AWG cables to minimise your losses. I almost
guarantee it will go up by double. The amps cant get through that cable due
to too much resistance. Still nice set up :)
starmauilimo says:
February 22, 2015 at 12:41 pm (UTC 0)
I have the same grid tie…I put it to retirement because did you ever
count how much money you are actually “saving” putting back in the grid?
Less say 20 cents per killowatts…hum…500 watts say 5 hours = wow saved
a $ 1! How much you paid for the solar panels,or the batteries and about $
250 for the grie tie inverter…right?
Waste of time! Best to use your free power instead of feed it back.
dong monacillo says:
February 22, 2015 at 12:44 pm (UTC 0)
Youre wire is under size…..i think.
starmauilimo says:
February 22, 2015 at 12:50 pm (UTC 0)
sorry math wrong…saved 2.5 kw = saved 50 cents lol
Jade Mace says:
February 22, 2015 at 1:40 pm (UTC 0)
Mate your cables are way to small………Also fit a couple of computer
fans to help keep it cool…… The cooler this runs the more output you
will get, I have 2, 120mm fans blowing onto 2 Grid Tie Inverters you will
never get what the label says on units. But the way I have set mine up I
can say Im impressed……. Good Luck
izzzzzz6 says:
February 22, 2015 at 2:27 pm (UTC 0)
@pdu999 watts don’t change with voltage (amps change) @ TheGWDEwrong By the
way at 600W and 24V you should be drawing about 25A. That would be a 50A
draw if it could supply 1200W I think the cable coming from your batteries
is a little thin! Also i wouldn’t trust Powerjack after the last video i
just watched! You could try to improve the cooling system by trying to get
a better airflow, also check the power transistors are bolted down to the
heatsink, in the last video they were not bolted down tight (straight out
of the box) also the clamps were touching the main board potentially
causing a short. Also in the last video i watched about Powerjack it was
pointed out that the fixing screws were touching the high voltage part of
the board, they screw to the casing, the only thing insulating the high
voltage from the case was the varnish on the circuit board! That wasn’t a
grid tie but a regular inverter! Best avoid their products. Considering the
pJ inverters efficiency mentioned in these posts it seems like a waste of
money after investing in a solar or similar system!
Dennis Pedigo says:
February 22, 2015 at 2:48 pm (UTC 0)
Bad highdea.
jdkingauto says:
February 22, 2015 at 3:26 pm (UTC 0)
I got my 1200 powerjack to do 700 watts for about 30 min with 3 car
batteries
garylabiche says:
February 22, 2015 at 3:50 pm (UTC 0)
Hook inverter directly to solar or to dump load on charge controller. The
later will charge batteries completely then dump the excess to the grid tie
inverter.
Alexandre Costa says:
February 22, 2015 at 4:33 pm (UTC 0)
I have a small 500w Chinese inverter that i feed oftem with my 24v battery
bank in to the grid.
This inverter give me a bit more than 500w?!?! i will make a video soon…
After a feew minutes with the hot, the power decreses a bitt… but it´s
working fine.
My inverter also shutt off the power when is very hot, restarting when it
cools down.
I will install on it some extra cooling fans… it will not shut down.
Nice video.
spaceghosttime says:
February 22, 2015 at 4:44 pm (UTC 0)
I have a question for everyone. I’m about to get into solar panels and etc.
My electric company offers free electricity at night from 8pm til 6am. My
thought is getting a bank of batteries and grid tie inverter or inverters
and running it during the day and charging batteries at night with a car
charger or chargers. Anyone’s thoughts?
vinnieb571 says:
February 22, 2015 at 5:17 pm (UTC 0)
I seen that your received an answer about connecting the power jack
directly to the batteries after you did it did you burn up any thing or did
the power jack take the 24 volt load and make power to send back to the
grid thanks vince I do it then read the instruction ha ha
stanley flanagin says:
February 22, 2015 at 5:18 pm (UTC 0)
hay guys if you read your instructions your not supose to connect to your
battrtys you my blow a fuse theres 4 30 amp fuses in these power jack 1200
mine wont work unless its connected to solar panels i get 900 watt
constantly with 1500 watt input
pdu999 says:
February 22, 2015 at 5:47 pm (UTC 0)
in a 12 volt 1200 watt system, 24 volts will give 600 watts. Simple.
Mark Cam says:
February 22, 2015 at 6:42 pm (UTC 0)
No way would I be using that inverter for the wattage that you are putting
out, there is a reason it is over heating, the inverter is having a hard
time with the current watts .. Lower the watts or get a new inverter, its
not going to last much longer over heating the way it is… I bet it came
from china ;-(
sirtom68 says:
February 22, 2015 at 7:11 pm (UTC 0)
What ribin21 said 😉
Jorge Pontes says:
February 22, 2015 at 8:04 pm (UTC 0)
Where did you get that wattmeter on the wall plugged to one of the outlets?
islaguy100 says:
February 22, 2015 at 8:21 pm (UTC 0)
shutting down is a sign your inverter can’t take the constant power. you
will probably blow out sometime soon. it would last longer if you can find
a way to keep it cooler like putting some spacers between the inverter and
the board for more air flow. you can even get another small computer fan
and attach it to the inverter housing to force air over the cooling
channels.
geocha1962 says:
February 22, 2015 at 9:02 pm (UTC 0)
Quick update Today I left my to run for a few hours and it did axactly the
same thing And as the time went by the capacity was droping and ended doing
around 500W I think that the more it heat up the less time it runs I wish I
had seen your video b4 I ordered my 🙁
pro311031 says:
February 22, 2015 at 9:40 pm (UTC 0)
12v computer fans that can run as long as the inverter is running
nrodge1 says:
February 22, 2015 at 10:09 pm (UTC 0)
Well, at least you have a 600W inverter. If I was you I would take it to at
least 27V before returning it, just to be sure, you will still be within
spec. If you are returning it that is, otherwise just use it for what it
will give you I guess. Just remember you will need a actual 800W (not the
retail listing, the actual output) from your panels to get that 600W out.
stanley flanagin says:
February 22, 2015 at 10:45 pm (UTC 0)
to get 900 watts they have to be positioned in direct sun light
taztaz79 says:
February 22, 2015 at 11:13 pm (UTC 0)
If it states 2400w maximum output its only doing 25% of the maximum
output….
vinnieb571 says:
February 23, 2015 at 12:02 am (UTC 0)
David also said by the way,you can just return the inside PCB boards for
our repaire,after we repaire ok,we’ll install as whole inverter for
you,before you return the PCB boards,pls kindly take clear photos to show
the status of the PCB It was free shipping before @ the cost of the unit of
365.00 has anyone else had problems with this company
powerinverter-onlinesale U-POWER ELECTRIC CO,.LTD Address:503,#10,JinZhou
RuiYuan,ChiDian Town,JinJiang City,FuJian Province,China Zip Code:362212
Andreas Taleporidis says:
February 23, 2015 at 1:01 am (UTC 0)
Power Jack inverter could blow up lol don’t buy Chinese grid tie inverters
🙂