I might have missed something along the way and hopefully this forum can clear it up. I am looking for a 100A BMS with documented low temp. cut off. I know Will liked the Daly but last I saw their low temp system failed during his testing. My question is; what BMS with low temp cut off is now the standard for putting together a battery?
What BMS is now recommended?
- Thread starter harpo
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FilterGuy
Solar Engineering Consultant - EG4 and Consumers
I am not sure there is a standard, but there seems to be 3 camps:
- Chargery
- Electrodaucus
- One of two Chinese models (depending on cell count)
- 12Volts: The BMS talked about in this thread: https://diysolarforum.com/threads/f...4-bms-with-low-temp-charging-protection.2884/
- 24 & 48 Volts: The Ant BMS: https://www.ebay.com/itm/Smart-Life...-Board-BMS-48V-72V-Bluetooth-20S/192880341024 (This can also be found on Aliexpress)
FilterGuy
Solar Engineering Consultant - EG4 and Consumers
BTW: I have used both of the Chinese models without problem. I am considering the Chargery for a build but have not played with it yet.
Will's has switched out the Daly for the battery hookup BMS. Its has similar capabilities to the Daly, but also has Bluetooth and Low Temp cutoff. I think the Daly still deserves consideration for simpler builds. Its pretty basic and doesn't have low temp cutoff, but many people don't need that.
From basic to more advanced the BMS' that are getting attention and positive feedback around here are:
- Daly
- Battery Hookup BMS
- Chargery BMS
- SBMS0 / Electrodacus
heirloom hamlet
life my way
heirloom hamlet
life my way
So with all of this in mind, which would you say would be the best affordablity/simplicity option if:
1) You did not need low temp cut-off
2) Use a 24v system
3) You want an LCD screen to monitor individual cells
4) Do not care about Bluetooth
5) Want a quick and easy setup?
1) You did not need low temp cut-off
2) Use a 24v system
3) You want an LCD screen to monitor individual cells
4) Do not care about Bluetooth
5) Want a quick and easy setup?
Thanks for all the replies. I did see the recent video where Will used the Battery Hookup BMS but didn't know if perhaps Daly adjusted their manufacturing process and actually put a low temp cutoff in their unit instead of pretending to. Will seemed to really like the Daly prior to the test where he evaluated the "new" Daly with what was advertised as having a low temp cut off but, as we all know, it failed miserably. One has to wonder about this company now that they advertised something in regards to their product that was blatantly false. Makes me a bit leery. This is exactly why sites like Will's have to purchase the components to be tested rather than have a company send them a product. This is critical for the reliability of the test/review. So easy for a company to send an evaluator product that is not exactly "stock" so that the review will be a positive one. I believe Will found this out with one of the battery companies when they sent him a "modified" product that was more robust than what they were selling to the general public. When similar sites like Hobo Tech review products I am always concerned about the objectivity of the review due to the review either being sponsored by the company that makes the product and/or the company donating the product. To me, that decreases the objectivity factor even if the reviewer tries in fain to be objective.
Please watch more of Will's videos regarding Lithium Phosphate battery building. That will answer your question.
UPDATE: According to Steve S. on this forum Chargery updated their BMS to have a low temp cutoff. Going to confirm now. Anyone able to confirm?
FilterGuy
Solar Engineering Consultant - EG4 and Consumers
The Chargery has a screen. A lot of folks speak highly of the Chargery, but it's set-up is slightly more complicated with the external Charge/discharge relays.
You can get a screen for the Ant BMS: https://www.ebay.com/itm/Smart-Lifepo4-li-ion-Lipo-LTO-Battery-Protection-Board-BMS-48V-72V-Bluetooth-20S/192880341024 (This can also be found on Aliexpress) I have not heard much talk about the screen for the Ant BMS so I don't know how useful it is.
Chargery hands down
Yes they do have low temp cut off
I just went through this decision and ended up on the Chargery. I believe I paid a small premium but get the LCD and individual cell monitoring which I wanted.
My cells arrived minutes ago and my Chargery should be here for the weekend and I should know more about your #5 then. My use is the 16t but if that’s easy the 8t should be the same.
heirloom hamlet
life my way
Do you have a quick link to the one you settled on?
He got it from me the 8T 300amp ones is $115.00 shipped. From my place in California. I bought a few to have here in the states for forum members.
Chargery is probably the closest match based on this list. Its not the cheapest or the simplest, but from what I've heard its not super difficult to configure, and the cost is reasonable for what you get. As everyone else has said, talk to @Craig and also read through @Steve_S megathread on the chargery in the BMS section.
GMB
Solar Enthusiast
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Do the ones you have come with the relays and everything needed to hook it right up to a 24v battery?
heirloom hamlet
life my way
I'm not seeing it.What he said!
The link is in Craig's signature line.
Chargery BMS In Stock in the USA
I bulk bought a few Chargery units to have in stock here in the US. I will be selling them on Ebay but wish to offer them here first at a little cheaper price than I will be offering on Ebay . All units have 300 Amp shunts. I have : BMS 8 T $115.00 BMS 16 T $173.00 BMS 24 T $300.00...
diysolarforum.com
Not sure on how much shipping would be to Ecuador though.
Bucky Cage
New Member
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- Apr 10, 2020
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Daly doesn’t appear to really have the low temp cutoff. I went thru a long dialogue with them and their temp cutoff is for their internal bms, not battery temperature. Also, no Bluetooth.
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