Electrodacus -Open Source- Solar Battery Management System: Introduction and Setup

I was given this bms for free to test, but am not sponsored to sell these. If sales increase substantially from average, I will get a commission, but I told him I would do this video for free regardless because people in the world need this. I was not expecting any compensation, and he does not make much money from them. Big thanks to Dacian for designing and building such a useful device! He lives off grid and practices what he preaches. Great guy.
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Every video includes some form of paid promotion or sponsorship. Some links on this youtube channel may be affiliate links. We may get paid if you buy something or take an action after clicking one of these. My videos are for educational purposes only. Information is subject to change/update at any time. Electricity is DANGEROUS and can kill. Be smart and use common sense :)

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[WillProwse]

This is advanced user BMS! Not a plug n play system. You add temp sensors, mppt and whatever you want, calibrate it, program it etc. If you don't like something, change it. It's open source.

Table of contents:
2:30 Turning it on
3:01 Modifying the Settings for your Battery
4:37 Shunt Installation
7:48 Shunt Parameters Explained
9:00 Modifying a LV2424 to work with SBMS
10:19 Modifying Inverter Control settings on the SBMS
12:47 Data logging and further discussion

This video is geared for advanced users, but a "beginner friendly SBMS setup video" is in the works. I ran into quite a few problems with setting it up, and figured that this video of me troubleshooting each problem would be useful for some of you. Once I understand all of the settings, I will make a fast paced, concise setup video.

Let me know what you think :)




Check out my best-selling, beginner-friendly 12V off-grid solar book (affiliate link):



My solar equipment recommendations (Constantly updated! Check here first):








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-Signature Solar: Cheap Server Rack Batteries and Large Solar Panels:

-Ecoflow Delta Official Site: My favorite plug-n-play solar generator:

-AmpereTime: Cheapest 12V batteries around:

-Rich Solar: Mega site and cheaper prices than renogy! Check them out:

-Shop Solar Kits: Huge site with every solar kit you can imagine! Check it out:

-Battery Hookup: Cheap cell deals
10% off code: diysolar

-Watts 24/7: Best deals on all-in-one solar power systems, with customer support and distribution here in the USA:


Contact Information:


FTC Disclosure Statement and Disclaimers:
Every video includes some form of paid promotion or sponsorship. Some links on this youtube channel may be affiliate links. We may get paid if you buy something or take an action after clicking one of these. My videos are for educational purposes only. Information is subject to change/update at any time. Electricity is DANGEROUS and can kill. Be smart and use common sense :)

DIY Solar Power with Will Prowse is a participant in the Amazon Services LLC Associates Program,
An affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com

[Roadsteading]

I really really like how ElectroDacus designs stuff, the water heating load dump project is inspired.

[electrodacus]

Thanks for the great video presentation of the SBMS0.

[SeanInAlaska]

Let me just say that so much of what was in this video goes completely over my head, and I just keep learning by watching them! Thanks for yet another great video!

[vensonata]

ElectroDacus has also explored energy storage in water. Another branch of exploration for Will Prowse might be storage of energy in phase change materials. Basically batteries are great for electricity storage but most energy is used as heat and can be stored in non battery mediums such as water. But the future looks like we will need to have a higher energy dense fluid than water (the current king). There are several out there, it might make for an interesting side project for Will, both as heat storage and cooling storage.

[jamest]

Glad you so positively show your mistakes, others can now learn 👍

[dane]

Electrodacus' SBMS is a work of art. Very cool.

[sbollmeyer]

Thank you, Will. This is the most complete explanation of this special device on the Intertubes.

[jimamos]

I just received mine and I've got it running on my bench with a power supply and a simulated battery using a resistor divider .... I eventually plan on acquiring the new version DSSr20's with built in diversion switching. As you mention, higher voltage strings will require an appropriate charge controller, but if you match your panels to your battery you can run the SSR's straight away. I'm interested in how it manages balancing over time and plan to use my BMS with a Headway 38120 pack. I'm also wanting to integrate with a wind turbine, but the jury is still out on how best to pari with the SBMS... awesome that you reviewed this, and kudos to Dacian, he's a great trove of information and he provides excellent support.

[MrTHEBRITINWA]

Glad to see you playing with this item. Totally the best bms
on the market

[carivros]

Electrodacus is a solid SBMS. I own a SBMS120, very powerful. The only downside for me is the maximum voltage design, 24Vdc. I started building my own OffGrid system and I wanted to use this SBMS but couldn't use it in 48Vdc application. Very well explained, Will!!!

[paulalexander]

Hey Will love your channel, would love to see you complete a more detailed set up with this system.

[lyndaphillips]

My husband loves electricity, batteries, and your videos. Thanks.

[Donatus]

I love this sbms. Very compact and have lots of functions. Thanks ElectoDacus and Will, P

[meanderingexplorers]

This thing is great for a solar system! Way better than a BMS setup, where you can't disconnect loads or charge system independently.

[andinbriwel]

If you use the sbms relay control contacts to switch the inverter on and off, connect it in series with the inverter’s switch rather than parallel. If it’s in parallel, the inverter will stay on if either the switch or the sbms is switching on. If you connect it in series, the inverter will switch off if either is off. BUT - be sure that switch is only a control voltage, not switching main power. Otherwise, you can use the sbms to control a relay that can carry the current.

[bigfoot_]

I own and use the first designed by ElectroDacus - the SBMS4080 very good design and build quality

[Specky]

Great video Will. I think that The Everlanders use a version of this on their overland rig.

[Conservator.]

2:04 I really like your editing style. 👍
Very easy to watch.
Not so easy (quick) to record and edit.
Thanks! 🙏

[NewAgeDIY]

Electrodacus’s website has USA and Canada auto shipping costs. At first look the website appears to be designed for easy access.

Great tip Will!