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WATTS247 Black Friday Special

From Page 9 of the manual, the MPP 6048 can be set up to output 120/240 in split phase, or 120/208 3P, or it can set it to output 120 & 120 ie if you didn't have any 240 loads, you can run this inverter just in 120 output - and get the full capacity. See page 9 attached. - Would you like me to test 120/240, 120/120 or both while we are at it?
To your earlier point - this means you can use the 6048 at full 6.5kW output {nope, limited to 35Amps} 120 volt, but in this configuration there would be no 240v output available for split phase loads. A very versitile inverter really, if they could update the PV DC voltage to 250v, and cut the idle consumption to a more tolerable 45-50W at this price point, this inverter would remain good for someone starting out or to run a cabin/tiny home.
{Edit: corrected the 120-only output, limited to 35A per the label on the inverter.}
LV6048 split phase manual-20201120-9_page-0001.jpg
 
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tghowe said:
Watts 247.com has this LV6048 unit on sale for $649. I'm tempted at this price. Is this a good company?

BlackFriday-RS -LV6048 6kW Split Phase Hybrid 120V/240V- 2 x 80MPPT Inputs (8Kw Solar) parallel-able to 18kw – Watts247 Wholesale

watts247.com watts247.com
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The pair of LV6548's is the better deal. I run a pair and they have worked flawless. Run my whole house.

I did ask Ian if he had any LV6548's manufactured in 2021 left but he never got back to me. I wanted another pair but only if manufactured before 2022. The units made later might suffer from the problems the EG4 6500EX had, it is unclear if MPP changed any components similar to the 6500EX. That is why I am hesitant on purchasing another pair manufactured later.
 
OffGridForGood said:
From Page 9 of the manual, the MPP 6048 can be set up to output 120/240 in split phase, or 120/208 3P, or it can set it to output 120 & 120 ie if you didn't have any 240 loads, you can run this inverter just in 120 output - and get the full capacity. See page 9 attached. - Would you like me to test 120/240, 120/120 or both while we are at it?
To your earlier point - this means you can use the 6048 at full 6.5kW output 120 volt, but in this configuration there would be no 240v output available for split phase loads. A very versitile inverter really, if they could update the PV DC voltage to 250v, and cut the idle consumption to a more tolerable 45-50W at this price point, this inverter would remain good for someone starting out or to run a cabin/tiny home.
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Might as well buy the LV6548 instead of running the 6048 in 120V mode. Higher VOC rating for MPPT's.
 
Zwy said:
Might as well buy the LV6548 instead of running the 6048 in 120V mode. Higher VOC rating for MPPT's.
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But doesn't the newer MPP6548 running 390v DC VOC inputs also come with 110W idle per inverter? {while the original was about 65W}
I recall @LithiumSolar tested this and posted a vid.

 
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I see a 35A limit on 120 120 output' on the MPP 6048 - from @1201 's earlier photo, looks like 4200 W in 120-120 mode. BUT this is still more than "half" of the total - the original question. ;)
IMG_20231125_183125983~2.jpg
 
This does make sense, with 2 3048's in the box, no reason they can be in "Parallel" instead of in "Series". But if that's the case, why the 35a limit??
 
sunsurfer said:
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Could be true - I don't know, and don't want to try that with my inverters!
Meanwhile, with 68kWh ESS, supplied with 6 rack batteries, how in the world would all six BMS's disconnect together under heavy load?
Under a 18kW load, each of the racks was providing +/- 60A each, but are rated to 100A each.
The danger would likely occur at very low SOC and high load, where the racks could shut down due to low SOC, however in your settings, you can switch to pass-through at low SOC.
 
AntronX said:
If you run it with one 100A BMS battery. Inverter can pull up to 300A during surge.
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The manual calls for "200A minimum per inverter" (ie my six x 100A for three inverters)
if someone tried to max out the inverter with just 100A battery, guess they would find out why the manual says 200A minimum...
 
OffGridForGood said:
The manual calls for "200A minimum per inverter" (ie my six x 100A for three inverters)
if someone tried to max out the inverter with just 100A battery, guess they would find out why the manual says 200A minimum...
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Sure but it should not fry itself from battery disconnect under full load. Inadequate design. Easily rectified by connecting battery cells direct to inverter making disconnect under load impossible (unless the fuse blows). BMS can drive inverter/charger on/off control pin.
 
tghowe said:
Watts 247.com has this LV6048 unit on sale for $649.
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For 650 bucks, I could have a spare on a shelf...
Although I tried that once before, and that "spare" is now on the wall running 24/7 LOL :ROFLMAO:
BUT! this time, a spare should be safe, since I can't parallel any more inverters, three is the max...unless I set it up 3-phase...:whistle:
 
For the price, anyone can make a very capable truck mounted mobile power station, 120/240 capable or switch to 120-120 (4200W)
Put it in a remote cabin on two 100A batteries and have 120 and 240 if you want.
I ordered a couple of Sodium batteries to try out - if these perform, I will re-use my current 6048's in a fishing/hunting cabin one day and not have to worry about heating the ESS.
 
OffGridForGood said:
But doesn't the newer MPP6548 running 390v DC VOC inputs also come with 110W idle per inverter? {while the original was about 65W}
I recall @LithiumSolar tested this and posted a vid.

Click to expand...
The original 250V VOC rated LV6548 units are still available, Watts247 only has the 250V version. Compared to the 6048 which is only 150V VOC rated.
 
Zwy said:
The original 250V VOC rated LV6548 units are still available, Watts247 only has the 250V version.
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That version has proven itself with many of the forum members - with the idle consumption nearly half of the newer model it is/was a great workhorse.
If I had this model, I would buy one or two of those last 250v VOC units, it looks like there will not be any more manufactured.
Zwy said:
Compared to the 6048 which is only 150V VOC rated.
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yes, the 6048's are only 145v VOC max, a real pita if the PV is far from the inverters, lucky for me the solar panels are on the roof 20' above the on-site solar power plant! (unlucky for me, the only options for more PV are getting further and further away!)
 
OffGridForGood said:
That version has proven itself with many of the forum members - with the idle consumption nearly half of the newer model it is/was a great workhorse.
If I had this model, I would buy one or two of those last 250v VOC units, it looks like there will not be any more manufactured.
Click to expand...

With tech advancing on inverters, it might make more sense to just wait. If the SRNE 10Kw comes out with parallel operation, it might be a better option down the road.
OffGridForGood said:
yes, the 6048's are only 145v VOC max, a real pita if the PV is far from the inverters, lucky for me the solar panels are on the roof 20' above the on-site solar power plant! (unlucky for me, the only options for more PV are getting further and further away!)
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Just add high VOC rated charge controllers. I don't use the MPPT's in the LV6548's at this time. I might if I add more array closer to the house.
 
I surprised that a 6048 can output over 6000W. My brother's LV5048 gets very warm in the summertime when he tries to output more than 3000W. Heat from the MPPT and inverter kicks the temps way up and eventually it reverts to grid to supply the load. The inverter is inside a conditioned shop (maintained at or below 82 degrees in the summer).
 
Zwy said:
With tech advancing on inverters, it might make more sense to just wait. If the SRNE 10Kw comes out with parallel operation, it might be a better option down the road.

Just add high VOC rated charge controllers. I don't use the MPPT's in the LV6548's at this time. I might if I add more array closer to the house.
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I have been thinking of this too, my farther PV potential areas could just feed a dedicated high voltage SCC. solving the low VOC issue, with low cost SCC for a few hundred bucks, instead of thousands to upgrade the inverters. Then wait patiently for a great 12k to come out.
 
OffGridForGood said:
If you're feeling cold, you're not moving fast enough! :ROFLMAO: -18 C this morning, (about zero F) so I guess winter has started finally. was about a month later than usual this year.
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Feeling it here now, also. Right at freezing, currently.
 
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