SBMS on Kickstarter, 3 days to go

Batteriapan

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Joined
Feb 20, 2017
Messages
35
TimJing said:
Has anyone tested output vs a similarly priced mppt controller?

I want the SBMSfor the programability and balancing features. Don't know of anyproduct that compares to what the SBMS can do on that front.

As for the DMPPT I don't think anybody but Dacian tried it out yet.
 

Bob Muster

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Feb 11, 2017
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26
TimJing said:
I got a 40 to try out as well. I hope it can handle the texas heat!

All you need to do is mount it on a heat sink and if necessary install a fan on the heat sink. Should be fine.
 

FERCSA

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Jan 16, 2017
Messages
88
I love Dacian work but there is something important to note. His SBMS chargers are PWM chargers not MPPT.
If you live totally off grid like Dacian or you get plenty of sunshine all day it's okay but for me it's a no go. Unfortunately I need every solar juice what I can get.
 

station240

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Oct 9, 2016
Messages
185
FERCSA said:
I love Dacian work but there is something important to note. His SBMS chargers are PWM chargers not MPPT.
If you live totally off grid like Dacian or you get plenty of sunshine all day it's okay but for me it's a no go. Unfortunately I need every solar juice what I can get.

His reasoning for going with PWM instead of MPPT, is the extra cost (inductors mainly) needed for MPPT. Money which in theory could be better spent on more solar panels.
I've got an inductor out of a MPPT inverter sitting on my desk, it's not cheap nor lightweight,

If your limited in space to put solar panels, then MPPT does start to make sense. That and buying higher W panels.
 

Bob Muster

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Feb 11, 2017
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His latest project is kind of interesting. It uses multiple inputs for a range of solar arrays of different sizes, makes sure house batteries are charged and house circuits are supplied and then outputs remaining solar capacity to various passive heating circuits. This can heat water for household use or water forpassive heating or passivesub floor or wall heating or whatever use you want to put it to. He's calling this setup Digital MPPT. With advances in peltier cooling blocks, this excess power could be linked to peltiers to cool passive water storage in summer to cool a house.

Bob
 

daromer

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Oct 8, 2016
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If you have panels that has its max output voltage very close to the battery voltage the PWM will work pretty good. The problem is when you have like lets say 30V panels on a 12V system. Then you will be wasting alot of energy on the PWM setup.

I assume that in his case he do have voltage pretty close and the saved bucks on components easily makes up for the lost energy and instead just buy an extra panel as Station240 said.
 

Batteriapan

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Joined
Feb 20, 2017
Messages
35
Just a few days until shipping! So looking forward to trying out my SBMS120. It's way overkill for my needs :D.
 

Batteriapan

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Joined
Feb 20, 2017
Messages
35
Just received my SBMS120. I'll post a videoreview when I get around to installing it. Early december?


image_ybkueb.jpg
 

Spkerking

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Nov 1, 2017
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14
Just got one in the mail as well. No need to post a picture.? Very well built! He is very helpful.
 

Wattsup

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Joined
Feb 19, 2017
Messages
517
Cmon guys, someone put a review together please?

I might like to get one of these for my lonely remaining CALB LiFePO4 cells
 

Just starting

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Mar 27, 2018
Messages
8
So I have a YouTube channel offgridcolorado719 I did some reviews and have been using a sbms40 for about 2 month. It works great so far
 
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