18650 EU Supplier

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sacko   10 kW

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18650 EU Supplier

Post by sacko » May 25 2017 3:49pm

New to the world of 18650 cells, previously used Lipo packs.

Despite numerous hours in front of the keyboard I am still unfamiliar with what cells to purchase, which are suitable for my BBS02 setup.

The config will be circa 10ah @ 48v.

Any EU suppliers recommended?

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rojitor   100 kW

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Re: 18650 EU Supplier

Post by rojitor » May 25 2017 4:20pm

https://eu.nkon.nl/rechargeable/18650-size.html
You need 13s 3 or 4p how many amps you need to pull?

sacko   10 kW

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Re: 18650 EU Supplier

Post by sacko » May 25 2017 4:25pm

Thanks for the reply.

Is there a specific brand/make of cell you recommend?

Looking to pull 25-30amps max. Currently limited to 25amp.

Was hoping to fit them in here

https://lunacycle.com/batteries/battery ... no-cradle/

The youtube video I saw showed he got 42 in there, from memory.

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rojitor   100 kW

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Re: 18650 EU Supplier

Post by rojitor » May 25 2017 4:42pm

42? Then it must be 13s 3p 39 cells.
https://eu.nkon.nl/rechargeable/18650-s ... 650ga.html
Ga will give you 10.5 ah and 30 amps powa.
LG mj1 or samsung 35e pretty much the same.
Ga have been widely used, mj1 have good rates lately. I'd buy 40 ga.
Wait for more opinions. The more info you get the better.

cwah   10 GW

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Re: 18650 EU Supplier

Post by cwah » May 25 2017 9:20pm

+1 for nkob
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

sacko   10 kW

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Re: 18650 EU Supplier

Post by sacko » May 26 2017 12:58am

Excellent, thanks.

The Sanyo cells are currently out of stock. Will contact them for expected shipping dates.

Samsung 35e cells currently available.
https://eu.nkon.nl/rechargeable/18650-s ... 0-35e.html

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rojitor   100 kW

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Re: 18650 EU Supplier

Post by rojitor » May 26 2017 6:18am

Oh you are right. Ga and mj1 are out of stock. Those are sold like Hot pies. 35e is a good option.
Also if you can go with a little Less ah consider panasonic pf. They have been the best of the best for a long time. You will get only 8.7 ah though.

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Kneelb4ZOD   1 W

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Re: 18650 EU Supplier

Post by Kneelb4ZOD » Jul 26 2017 5:36pm

For 39 Samsung 35e cells, including shipping to Spain - Nkon seems to be offering them for under 200 USD at the door, which seems Ok. They look like a reliable retailer.

That's a pretty top of the line brand cell. Branded cells usually have pretty narrow margins so the price is going to be similar everywhere, and vary most due to regional cost differences. I can get them significantly cheaper, but I'm next door to some of the biggest suppliers. So in this case going with an EU supplier like nkon makes a lot of sense. On the other hand, there are a lot of options available at half the cost. If I wanted to test how cheap I could build a battery pack of equal capacity (which I'm not saying is necessarily the best idea for a small high performance ebike), I could probably do it for 25-30 dollars, if I valued my time at 0 dollars. That would be the extreme limit of what is possible at current material prices, to give you an idea.

As you've already identified, LG MJ1 3500mAhm, Samsung 18650-35E, Sony 18650GA... Those are among the best high density 18650 batteries you can buy at the moment. Unless you need to draw a lot of current, those are the ones to get if you want the most bang in the smallest package.

The one note on those is I don't think you'll want to run anything more than 1kw on that configuration (13s 3p) (1.5kw MAX), 750w would be a safe choice. If you need to go higher than that, you should get something like 20700A or HG2's or use a different battery configuration.
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