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Re: A123 CELLS
Cheers Woody, mine of information as usual
Andy
Cheers Woody, mine of information as usual
Andy
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Re: A123 CELLS
http://cgi.ebay.co.uk/Dewalt-DC9280-28V ... 13fea701dd
You MIGHT get a price reduction on the high postage for multiple packs.Comment
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Re: A123 CELLS
That's an insane amount for P&P for something that size/weight :shock:
Unless, are there any special packaging requirements needed for lithium products?Comment
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Re: A123 CELLS
Nope just someone keeping their ebay fees down. Ebay charges more the higher your products cost but doesn't care about P&P so either way you end up paying the same but the guy selling pays less to put their products online.Comment
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Re: A123 CELLS
Ah, makes sense. Only ever sold one item on eBay so I'll need to bear that in mind for the next time :wink:Comment
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Re: A123 CELLS
I have the packs made up now (10S1P) and need to charge/balance them.
I am using the Fusion Paladrin charger and the 12s balancer
http://astramodel.cz/manualy/fusion/fus ... manual.pdf
The balancer sees these as two seperate packs so I assume they would be connected as two 5cell packs.
In addition, I have two cells which seem to be less than 2v so the charger doesn't like charging these. Is it possible to recover these with say a regulated power supply to boost the voltage say charging at about 3.5v and 1A directly unti the voltage of the cell is above 2v or is it best just to replace these?
AndyComment
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Re: A123 CELLS
i'm not 100% sure on the answers so will leave it to some of the more in the know people
but if you do need to replace them let me know becuase i need to buy some but i only need 2 so if you wanted could do a combined buy???
sorry couldn't helpComment
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Re: A123 CELLS
Less than 2V I'd drop the cells. When I killed a number of A123 cells, they dropped to the 1.5V level.
Even if you were able to recover these cells they will never be like new and will always be the weak link in the chain. Better to pay the 5 quid a cell to remove one weak link that you could be tearing your hair out over at an event.Comment
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Re: A123 CELLS
Or maybe one should use a bigger iron to solder on the balance leads!! Just taken apart the first pack and found that one of the leads was held on by the kapston tape so very high resistance connection. Workmanship issue me thinks for the main part.Originally posted by typhoon_driver
AndyComment
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Re: A123 CELLS
Lol Glad to hear it!
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Re: A123 CELLS
I have been thinking for a while to upgrade to a123 but want to get it right the 1st time,
have been looking through these threads and have seen some pics that john has posted of
4S5P A123 packs being made.........
these look like 4 packs in series to give 13.2 volts but at the same 5 cells are connected
in parallel to give 5 x the amps,
how can these be balanced ?
I didnt know that we can even charge in paralell
surely any faulty cells might not be detected by the chargers ?
I suppose if this is an easy solution just 1 big battery the only downside is that it
takes longer to charge as only 1 charger can be used.Comment
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Re: A123 CELLS
here are some cells ive found on ebay they look ok and are available in larger
ammounts but dont really get any cheaper !
has anyone ever bought any ? i am wondering if customs would stick on any
import tax ? I might buy 1 lot at a time to find out.
http://cgi.ebay.co.uk/New-12-X-A123-230 ... 3a5bab6a71Comment
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Re: A123 CELLS
very cheap but have you seen the postage also when you buy fron usa i get a tax normaly
go for ones from china ( i did)
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Re: A123 CELLS
You can only be charged VAT if the value of the item is above a certain threshold. I can't remember exactly what it is atm but I'm sure its around the 50 quid mark or you can ask the seller if they will declare them as a gift as you will definately pay nothing. Some will, some won't.
Very cheap though!Comment
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