Boston-Power Swing 5300 Li-ion cell test

Batteries, Chargers, and Battery Management Systems.
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Matador   10 kW

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Re: Boston-Power Swing 5300 Li-ion cell test

Post by Matador » Mar 11 2018 10:40am

Hillhater wrote:
Oct 09 2017 8:24pm
Yes , i have seen similiar "unrapped" pictures before, but even there it still looks "suspiciously like". A pair of 18650s in a metal case.!
But AW linked to a post with the can cut open to prove it is a single , oval wound, cell construction.
Its basic performance specs are not outstanding by current standards, but maybe it has some advantage in cycle life, safety, US availability, etc ?????
From then graph.... 0.48 V drop beween 13A and 1 A curves...
Thats 0.48 V / 12A = 40 milliOhms DC.... Yeah not that great for a 5000 mAh or so cell.

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amberwolf   100 GW

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Re: Boston-Power Swing 5300 Li-ion cell test

Post by amberwolf » Mar 11 2018 3:06pm

That sounds pretty terrible to me. My entire pack of EIG NMC cells, 14s2p, is only about 43milliohms according to the CA3.1's estimate!
Pajda wrote:
Mar 10 2018 4:57pm
Yes they could be easily spot welded by cheap Chinese welders as for example LG HG2 cells.
Not according to the info in posts not far above yours. :?

Pajda   100 W

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Re: Boston-Power Swing 5300 Li-ion cell test

Post by Pajda » Mar 12 2018 10:01am

Today I made test with a magnet and Swing5300 have non-magnetic! case. Probably really made from aluminium as is stated in one of its datasheets. Only magnetic material on Swing5300 cell is minus pole terminal.

Headrc   1 W

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Re: Boston-Power Swing 5300 Li-ion cell test

Post by Headrc » Mar 13 2018 10:02pm

Pajda ...have you tried welding or soldering the Swing? I actually got a couple to test and see. I do not have a welder at this time ...but soldering was no problem using a good iron (Hako) flux and Kester 44 solder. I am also not as adept at charging and testing as Thunderheart ....so right now I have to go with his extensive testing.

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Re: Boston-Power Swing 5300 Li-ion cell test

Post by realfastbug » Mar 15 2018 5:01pm

Hi,
at my previous job we built a ton of packs with these boston power swing 4400 and 5300 cells. I forget the name of the welder we used but it worked really well. We did have to use slightly different settings for each polarity. They are great cells to work with. Speaking of, I have an entire pallet of brand new boston power swing4400 cells that I bought for an ev project. I gave up on that project and am looking to sell the cells. I will need to recount what I have but I believe I have enough to do 2 compact cars with big packs. I also have some examples of welded packs and the foils we used.

I just looked and we used an old Miyachi welder. I think I know of someone that has one to sell too!

Supermax2829   1 µW

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Re: Boston-Power Swing 5300 Li-ion cell test

Post by Supermax2829 » Dec 05 2018 11:56am

Hi,

I was reading through the forum about Swing 5300 that I use in one of my product.
One of you mentioned there is an office of Queen Battery in Europe. Could you give me the contact info for Queen Battery in Europe?

Thanks!

Messiah   1 µW

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Re: Boston-Power Swing 5300 Li-ion cell test

Post by Messiah » Dec 07 2018 11:56am

Hey
So charging for Boston 5300 is same like it was 18650?

Sent from my Redmi 4 using Tapatalk


hemo   10 W

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Re: Boston-Power Swing 5300 Li-ion cell test

Post by hemo » Dec 07 2018 6:29pm

Messiah wrote:
Dec 07 2018 11:56am
Hey
So charging for Boston 5300 is same like it was 18650?

Sent from my Redmi 4 using Tapatalk
Yes, same voltage characteristic's, no special charger required.
Cells are rated for 13a peak each or = to 6.5a peak rated 18650.
Life cycle is supposed to be 3000 cycles to 70% DOD, I believe.

Messiah   1 µW

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Re: Boston-Power Swing 5300 Li-ion cell test

Post by Messiah » Dec 07 2018 6:51pm

hemo wrote:
Messiah wrote:
Dec 07 2018 11:56am
Hey
So charging for Boston 5300 is same like it was 18650?

Sent from my Redmi 4 using Tapatalk
Yes, same voltage characteristic's, no special charger required.
Cells are rated for 13a peak each or = to 6.5a peak rated 18650.
Life cycle is supposed to be 3000 cycles to 70% DOD, I believe.
Thanks

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