Idiot's guide to a self build battery

Lincs Robert
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Re: Idiot's guide to a self build battery

#521

Post by Lincs Robert »

Joeboy wrote: Thu Nov 24, 2022 4:39 pm
Lincs Robert wrote: Thu Nov 24, 2022 3:57 pm To be clear, Colin is shipping these cells using DDP.

DDP it stands for delivery, duty paid. This means that he/they are taking the commercial risk of shipping to your door, with all duties etc paid.

The International Chamber of Commerce has a set of commercial terms & conditions for international trade around the world. These are called INCOTERMS. DDP is one of many. Google and all will be revealed. Welcome to the world of international trade. Many large organisations employ shipping clerks who deal with this stuff day in day out. I’ve dealt with it a bit and believe me, DDP is the one to go for, many others are a world of pain & only worth going for if you are shipping large quantities. What we are doing is the smallest of toes being dipped into a very large body of water.

Rob
Nicely put and a large part I think of people's trepidation in long distance purchase? Certainly my set arrived with no further duties to be paid.
Which is exactly the way it’s designed to work. It’s a bit more faff for the seller, but they do it all the time and will have clear processes for each part of the world. Other INCOTERMS that you’ve probably heard of are Ex-works & FoB, but there are many many others. Some involve payment being held in escrow by a trusted 3rd party & only being released on witnessed acceptance testing. It’s the way international trade ticks. Delivery & payment of aircraft engines is a particularly interesting one.
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Colin Deng
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Re: Idiot's guide to a self build battery

#522

Post by Colin Deng »

Lincs Robert wrote: Thu Nov 24, 2022 3:57 pm To be clear, Colin is shipping these cells using DDP.

DDP it stands for delivery, duty paid. This means that he/they are taking the commercial risk of shipping to your door, with all duties etc paid.

The International Chamber of Commerce has a set of commercial terms & conditions for international trade around the world. These are called INCOTERMS. DDP is one of many. Google and all will be revealed. Welcome to the world of international trade. Many large organisations employ shipping clerks who deal with this stuff day in day out. I’ve dealt with it a bit and believe me, DDP is the one to go for, many others are a world of pain & only worth going for if you are shipping large quantities. What we are doing is the smallest of toes being dipped into a very large body of water.

Rob
Thank you Rob
Yes, shipping via DDP will be the best choice for the customer
The seller bear all the cost for the customer, and the customer will be easier to get the goods
Just the goods cost +shipping cost. Then can wait for the goods arrive
The only problem is the shipping will take 45 more days , That's the hardest part of it
Colin Deng(Batterycolin)
Battery supplier for battery cells and pack
Email:guohed070@gmail.com
https://www.linkedin.com/in/colin-deng-2b4277238/
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Joeboy
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Re: Idiot's guide to a self build battery

#523

Post by Joeboy »

Ran in a few led's to spice it up and serve as emergency lighting to safely access the 2kW offgrid inverter if grid falls over. Mostly though, it's about the bling and lets not kid on that its otherwise! 8-)
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Re: Idiot's guide to a self build battery

#524

Post by ALAN/ALAN D »

Where have you put the resistor in series with the L.E.D :roll:
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Joeboy
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Re: Idiot's guide to a self build battery

#525

Post by Joeboy »

ALAN/ALAN D wrote: Mon Nov 28, 2022 4:17 pm Where have you put the resistor in series with the L.E.D :roll:
Oh, is that a thing? I was quite enjoying the bright lights!
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Oldgreybeard
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Re: Idiot's guide to a self build battery

#526

Post by Oldgreybeard »

ALAN/ALAN D wrote: Mon Nov 28, 2022 4:17 pm Where have you put the resistor in series with the L.E.D :roll:

I'd assumed the current limiting resistors were under the sleeving.
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Joeboy
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Re: Idiot's guide to a self build battery

#527

Post by Joeboy »

Oldgreybeard wrote: Mon Nov 28, 2022 4:40 pm
ALAN/ALAN D wrote: Mon Nov 28, 2022 4:17 pm Where have you put the resistor in series with the L.E.D :roll:

I'd assumed the current limiting resistors were under the sleeving.
God no, I specced them to the pack voltage and wired them straight in.did think they were a little bright.Ah well, every day a learning day!
Last edited by Joeboy on Mon Nov 28, 2022 4:51 pm, edited 1 time in total.
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Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
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Fintray
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Re: Idiot's guide to a self build battery

#528

Post by Fintray »

Joeboy wrote: Mon Nov 28, 2022 4:49 pm
Oldgreybeard wrote: Mon Nov 28, 2022 4:40 pm
ALAN/ALAN D wrote: Mon Nov 28, 2022 4:17 pm Where have you put the resistor in series with the L.E.D :roll:

I'd assumed the current limiting resistors were under the sleeving.
God no, I wired them straight in.did think they were a little bright.Ah well, every day a learning day!
Get the thermal imaging camera on them whilst they are still going!
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nowty
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Re: Idiot's guide to a self build battery

#529

Post by nowty »

If they are 3.2V led's then you won't need one.

It only when you run them off say a 5V supply and need to drop the voltage at the running current of the LED.

But if its a 2.2V one you will need one.
Last edited by nowty on Mon Nov 28, 2022 4:56 pm, edited 1 time in total.
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Joeboy
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Re: Idiot's guide to a self build battery

#530

Post by Joeboy »

Fintray wrote: Mon Nov 28, 2022 4:50 pm
Joeboy wrote: Mon Nov 28, 2022 4:49 pm
Oldgreybeard wrote: Mon Nov 28, 2022 4:40 pm


I'd assumed the current limiting resistors were under the sleeving.
God no, I wired them straight in.did think they were a little bright.Ah well, every day a learning day!
Get the thermal imaging camera on them whilst they are still going!
If it's black and hot with a hole blown in it I can change it out, beyond that, not a clue! Any pointers to resistors to use? I've got spare led's if these go poo until then. :lol:
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
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