Rednecktek
Expert Newbie
Ahem... I saw Star Wars in the theater...
The FIRST time...
I use my Blockbuster card to buy booze...
Whipper Snappers!

The FIRST time...
I use my Blockbuster card to buy booze...
Whipper Snappers!

That cable costs us $12 to purchase from our supplier. Even when you factor in the shipping charge, by the time you consider the overhead expenses (warehouse, labor, the envelope), we end up out of pocket on every cable sold individually. We assume if you need that cable, you probably purchased batteries to subsidize the difference. Some things are not worth getting caught up in the fine details.I can understand why 100-pound batteries full of hazmat are expensive to ship. But why does a $14, 4-ounce USB cable cost $10 to ship?
That cable costs us $12 to purchase from our supplier. Even when you factor in the shipping charge, by the time you consider the overhead expenses (warehouse, labor, the envelope), we end up out of pocket on every cable sold individually.
You need better suppliers!That cable costs us $12 to purchase from our supplier.
His supplier is the manufacture. The one who guarantees the cable will work with their product.You need better suppliers!
But yeah, as someone who makes a living from those "Shipping and handling" charges I shouldn't complain, but it sure hurts to pay them!
Aaahhh, gotcha by the short & curly's then.His supplier is the manufacture. The one who guarantees the cable will work with their product.
Trust me, I wish cabling was standardized.Aaahhh, gotcha by the short & curly's then.
Ah but was it all tubes ?Our first TV was black and white.
His supplier is the manufacture.
Trust me, I wish cabling was standardized.
The USB-C protocol is absolutly ridiculous. Theres atleast 10 different "types" of USB-C, but they all look identical, so if you don't know what you are looking at, you would never know.
What do you like and what can we do better?
Yes. Back in those days a Tv could be repairedwas it all tubes ?
This is not a USB-C cable we're talking about...it's an RS232-DB9 Serial converter with a custom made DB9-RJ11 adapter that plugs into the battery and has the proper pinout. One of the cheapest items in our store, mind you.See, we just need to buy direct from China. Not only are the parts cheaper, and fulfillment is performed by people making $2/day not $17/hr., but Most Favored Adversary status allows low or no import duty and final delivery by USPS for less than the price of a first-class stamp.
Hey I appreciate this feedback. We haven't changed our pre-made battery cable shipping prices in well over 2 years, so we will take a look into this. Very valid point. Thank you!Again, this feedback is given in the spirit of honesty and gratitude and hoping to see you grow and expand into the best version of yourself and CC. Happy to answer any questions and if not, wishing you the best!
No, for example a Victron cable he will be purchasing from Victron.If you believe that (manufacturer of the cable?) ...
The cables themselves can vary pretty wildly, Linus Tech Tips did a great video on it.Do you mean the protocol implemented through the cable by devices at either end, or cable itself?
You would hope there is a standard way for equipment to query what's at the other end, so it can say, "XYZ is not supported by ABC".
Do the cables themselves differ (except in terms of quality & tolerances)? Like maybe shielding?
Extreme data rates are going to care more about impedance control and shielding. I'd hope inverter communications works with lowest common denominator.
I don't know what degree of error correction, retry, adaptive signaling might be used for USB.
Ethernet, data rates can adjust, so long cables with poorer signal quality still works.
The full Ethernet stack of hardware and software is robust.
Some things are implemented on lower levels, like "Profinet", which was part of keep-alive/safety circuits in our system.
That got upset during EMI/EMC testing (noise injection on nearby power cables), while standard Ethernet kept operating. Higher quality shielding for the longest part of the run made the difference (as called for in the vendor's documentation.) So that was an installation-dependent situation.
Looks like Profinet also has many levels.
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Profinet - Wikipedia
en.wikipedia.org
Very good point. As much as sellers like to think that customers are not making convenience purchases, the PayPal thing does increase sales in my own small business. PayPal was relatively unknown and a bit of a joke when it started years ago, but now many people not only trust it, but it’s convenient.I know the PayPal thing came up earlier in the thread but did want to mention not having it has delayed my $300 purchase since with PayPal I simply have to click on pay with PayPal and have everything configured already. Because I have to pay by credit card I'm being lazy and have to go get my wallet and cardNot sure if it is still worth having it because of other things mentioned but just providing a data point.
(and after writing this I guilted myself into getting my CC to enter the info)
See post :https://diysolarforum.com/threads/how-can-current-connected-improve.62267/post-775821I would love to support CC but shipping cost / exchange rate make this non economical to ZA.
Just put your CC info in a file, password protected if your PC is subject to snoopers. Then you can just copy and paste when you buy something.Because I have to pay by credit card I'm being lazy and have to go get my wallet and card![]()
That perfectly part is the issue. SMA is not registering SOC% below 20%...no matter what we tell the inverter it's not listening. The rest of the bugs have been worked out.