Recent posts

#1

New Product Ideas and Discussion / Re: A CLASSIC PRODUCT ADDITION...

Last post by Barry Fields - Today at 02:37:21 PM

Is my security clearance high enough to ask what MCU is used in the Hawkesbay and Barcelona ( I presume they are the same)?

#2

System Design and Layout / Re: DCM9040 battery monitor

Last post by Barry Fields - Today at 10:39:59 AM

Just installed my new DCM-120100C meter.

Externally the same as the older DCM-9040. Fits in the panel hole just fine. External 100a 75mv shunt placed in the low side PV total to charge controller.

The new calibration procedure is much more straight forward if ya carefully read the instructions provided.

Seems to be performing well for monitoring PV power delivered by the panels to the charge controller.

I have no use for the AH or SOC readings so can make statement concerning them.

#3

New Product Ideas and Discussion / Re: load management

Last post by ClassicCrazy - Today at 10:39:01 AM

While we are talking about load balancing, has anyone used or had experience with a 220v to 110v step down unit?

I've never seen it before.
It's continuous 1200W and 3kW maximum.  Only weighs 13.4  pounds.

What is in it and how does it work ?

3kW for 30 minutes sounds like it might be a real transformer in it.
Almost too cheap even for 1200W if it is a transformer.

Their advert pictures are kind of funny.  The box is shown on the table where the man and woman are working, like in the kitchen but the box is not doing anything and the meter is at zero.   But man and lady are sure happy !

boB

Ha ha Bob - he is picking up a chili pepper with two spoons like it has the cooties .
She is making one weird smoothy from spinach and milk !
Maybe this is the new era of AI generated  advertisements
Create a photo of two people who are happy to be using their step down converter to make a meal - ha ha .
Larry

#4

New Product Ideas and Discussion / Re: load management

Last post by Barry Fields - May 19, 2024, 10:16:40 AM

But man and lady are sure happy !

Probably not married> 

I am interested in balancing the load on my 220v inverter from my 110v fridge.

#5

New Product Ideas and Discussion / Re: load management

Last post by boB - May 19, 2024, 02:17:28 AM

While we are talking about load balancing, has anyone used or had experience with a 220v to 110v step down unit?

example

https://www.amazon.com/YaeCCC-Voltage-Transformer-Converter-Regulator/dp/B07T136SDV/ref=sr_1_12_sspa?crid=2A7N1L799NBT4&dib=eyJ2IjoiMSJ9.o7hEAG_elFSqUvfQns6-f_JrFPE5lDtm8SEkSHuoKoutCN5qbrbj2y5xUGqG45a_x_Iw7zO5Y7hQtmxFVMvi6msOwBbAv5F1FblNoJSG-yn4YJ0dc1DTSQlxZfndT-9-_wJtuz1JqQjRcG1l7hiojNIqXOAW9B90VQmBJyCN1XVTxFwSqlsrsH_Aquxw1eI_4Ld7vVbQkO9vsmwzAGOdsI7el7fUfeOZ_gjcVyizd8E.Icq8_iqxBwZJSwNc6byyd6Q8l58pbh78P2InOVp2alc&dib_tag=se&keywords=220v+to+110v+converter+step+down+3000w&qid=1716078831&sprefix=220v+to+110v+converter+step+down+3000w%2Caps%2C159&sr=8-12-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9tdGY&psc=1

I've never seen it before.
It's continuous 1200W and 3kW maximum.  Only weighs 13.4  pounds.

What is in it and how does it work ?

3kW for 30 minutes sounds like it might be a real transformer in it.
Almost too cheap even for 1200W if it is a transformer.

Their advert pictures are kind of funny.  The box is shown on the table where the man and woman are working, like in the kitchen but the box is not doing anything and the meter is at zero.   But man and lady are sure happy !

boB

#6

New Product Ideas and Discussion / Re: load management

Last post by Barry Fields - May 18, 2024, 08:39:36 PM

While we are talking about load balancing, has anyone used or had experience with a 220v to 110v step down unit?

example

https://www.amazon.com/YaeCCC-Voltage-Transformer-Converter-Regulator/dp/B07T136SDV/ref=sr_1_12_sspa?crid=2A7N1L799NBT4&dib=eyJ2IjoiMSJ9.o7hEAG_elFSqUvfQns6-f_JrFPE5lDtm8SEkSHuoKoutCN5qbrbj2y5xUGqG45a_x_Iw7zO5Y7hQtmxFVMvi6msOwBbAv5F1FblNoJSG-yn4YJ0dc1DTSQlxZfndT-9-_wJtuz1JqQjRcG1l7hiojNIqXOAW9B90VQmBJyCN1XVTxFwSqlsrsH_Aquxw1eI_4Ld7vVbQkO9vsmwzAGOdsI7el7fUfeOZ_gjcVyizd8E.Icq8_iqxBwZJSwNc6byyd6Q8l58pbh78P2InOVp2alc&dib_tag=se&keywords=220v+to+110v+converter+step+down+3000w&qid=1716078831&sprefix=220v+to+110v+converter+step+down+3000w%2Caps%2C159&sr=8-12-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9tdGY&psc=1

#7

New Product Ideas and Discussion / Re: load management

Last post by Barry Fields - May 18, 2024, 12:53:17 PM

Not all inverters are created equal.

I use two AIMS 6000w 48v inverters (Sigineer equivalent) 220v split phase

They are rated for overload as follows:
110%< load >125% 14 minutes  125%< load >150% 1 minutes  150%< load >300% 20 seconds

It is also important to load balance the 110v legs. If you have too much on one 110v leg, you can easily excede the limits on one leg.

#8

New Product Ideas and Discussion / Re: load management

Last post by ralph day - May 18, 2024, 07:27:07 AM

I've noticed led lights flicker when my Outback inverter use or drops utilitypower...and when the freezer kicks on.  Large loads and power transfer.  Must be ignored or it will drive you crazy!

#9

Lead Acid (Sealed and flooded) / new East Penn Battery manual

Last post by Barry Fields - May 17, 2024, 11:34:05 AM

FYI

#10

New Product Ideas and Discussion / Re: A CLASSIC PRODUCT ADDITION...

Last post by Barry Fields - May 16, 2024, 04:47:07 PM

BBMT ?

from a few posts back
First we need to name this potential new product. I would suggest BBMT (Barry's Better Mouse Trap).