Cheap is totally relative.
What's cheap.
Are the components lower quality then Batrium?
Absolutely and at lower price.
Is the research time and quality insurance lower then Batrium?
Again, absolutely.
Is spending +$ 800,- to safeguard the + 5000 investment expensive or cheap?
Relative to your point of view.
Your demands.
And your safe or risky nature.
Do you need up time?
Do you need a product that the builders really stand by, and don't make a fuss about warranty?
And what's that worth to you.
Real life story:
I build a mining farm in 2017 with +200 1060 GPU, and chosen Corsair power supplies. 40 of them, in the range of 750 to 1000, mostly 850w.
Now that's all gone and sold, except 2 PSU and 7 cards.
One PSU had starting problems.
Sometimes it would start, sometimes not.
Flipflop thought Google me, the electronic part that does the puls turn on thing.
So I opened the unit I search. Lost quite a lot of screws and other parts and could not find it.
I reached out to Corsair support, to find out what chip or part it was and replace it myself.
How surprised I was to hear this is warranty.
I received a pre-paid shipment label (DHL) to send to Korea.
Courier came to pick the old unit from our home (30 minutes from the main road) and a week later a new courier (FedEx) came and deliver me a brand new RM1000X.
That was not my reason for choosing Corsair. The stability of the PSU, what is more important when you Overclock the videocards.
Even that those PSU where in the higher price range, they turned out cheapest solution due the excellent customer support.
Daly dumb BMS is totally epoxied.
Impossible to repair or replace any parts.
Request it back at customer expense, is simple customer punishment for asking support.
If you get your money back, or get replacement temporary working unit... It's punishment for asking.
They absolutely have no use for it, not even the heatsink can be removed.
Their tests show quickly when it's defective.
They know they can't replace parts.
And if it's simple re-programming?
They should make that available and not charge $75,- to get the option for replacing or refund.
Not much more to it.
Sadly Daly isn't the only BMS builder who makes a crappy product.
I have received and seen them go defective in way too short time for that price.
5 bucks even would be to much.
+ $100... A price range one should be able to receive quality.
It ain't rocket science.
My alternative, DIYBMS is not for everyone.
It requires soldering and flashing.
It does give you the freedom to adjust the PCB if you have better design idea for your needs, as well as the software.
Measuring cell voltage and turn something on or off at a set threshold isn't that complicated.
It's the amps that the "old" design needs in its system that makes it vulnerable.
Mosfet design works perfectly for smaller amperes.
It was never designed for +100A.
It got upscaled to +400A...
And fails, and fails and fails.
My Daly 250A worked fine for 10 weeks.
Up to the day it stopped, around lunch time, none of the cells at high level or low.
Just stopped.
Will makes great reviews, absolutely.
Endurance tests aren't part of it.
If I didn't hear so many people in my limited environment around Daly BMS fail, I probably would advise one.
But I do.
And see how Daly abuses their "third world" status for postages.
How their new "smart" had 4 major hardware changes in 9 months, with absolutely no good support to any of the old units that fail, or don't work as specified.
If they need 4 large changes, it was launched premature.
The first 3 shouldn't have been in the field as sold products.
That's cheap thinking...
Not the product.
That probably is matured by now, Not build by Daly, but painted red (black available under different names) and sold as.
What's cheap...
I still have a mighty good feeling about Corsair.
To bad they don't make BMS!!
Batrium isn't the only quality builder out there.
There are a few other options.
If you want to stay in the price range as Daly, $100-150, then DIYBMS is the only one I know that comes close to stability, scalability and reliability.
