LG HG2

Batteries, Chargers, and Battery Management Systems.
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Leeleeducati
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LG HG2

Post by Leeleeducati » Jan 20, 2018 12:03 pm

Anyone have experience with these cells that wish to comment? What would be reasonable amps to charge these at in a 14s8p config if speed was the main focus? Would 10amps hurt them too much?
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Pajda
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Re: LG HQ2

Post by Pajda » Jan 20, 2018 2:17 pm

You mean LG HG2? I am not sure if LG HQ2 even exists. I have very good experiences with HG2 cell, it is one of the most robust cell in 18650 format. And one of few which is capable of fast charging without affecting cycle life. The standard charge rate for this cell is 0.5C and this gives you in 8p configuration charging current of 12A. I have tested this cell also at 1C charging current (24A in 8p) and it is still possible without significant capacity loss. And finally this cell can do 1.33C continuously (32A in 8p) without heating problem but this high charging current is already affecting its cycle life.

Leeleeducati
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Re: LG HG2

Post by Leeleeducati » Jan 20, 2018 6:21 pm

Thanks for chiming in Pajda! Yes that was a typo, HG2, I had even posted the spec sheet. I’m planning my next pack with these, I’ll aim for a 10-12 amp charger then.

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amberwolf
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Re: LG HG2

Post by amberwolf » Jan 21, 2018 2:44 am

FWIW, a search shows a lot of posts about them
https://endless-sphere.com/forums/searc ... mit=Search
so you might want to peek at the existing discussions for even more info.

This is a list of topics with hg2 in the title
https://endless-sphere.com/forums/searc ... mit=Search

Cephalotus
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Re: LG HG2

Post by Cephalotus » Jan 22, 2018 11:15 am

This datasheet shows excellent cycle life even at 4A charge rates:

https://www.nkon.nl/sk/k/hg2.pdf

I do not have experience with real life Performance.

SHIBBY
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Re: LG HG2

Post by SHIBBY » Feb 02, 2018 7:27 pm

I am looking at these too. Will you guys be buying from Aliexpress? They seem to be about $3.06 per battery.

Leeleeducati
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Re: LG HG2

Post by Leeleeducati » Feb 10, 2018 8:08 am

I emailed a few sellers on AliExpress and Alibaba and didn’t get a good feel for the products they were selling. There’s A and B grades, old stock, fakes etc. So I went with Mahbattery in the US. Had to ship to a Kinek in Niagara Falls over the border then picked them up there, no issues. No one wants to ship to Canada as li-ion are considered Haz. Even couriers aren’t too knowledgeable in what a “cell”is and what a “battery” is. Anyway, at $4 and free US shipping I know I got grade A-1 originals. Mfg date in 2017.
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Hillhater
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Re: LG HG2

Post by Hillhater » Feb 10, 2018 8:03 pm

:shock: :shock: ...??? How many did you buy ???
This forum owes its existence to Justin of ebikes.ca

Leeleeducati
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Re: LG HG2

Post by Leeleeducati » Feb 10, 2018 8:16 pm

Just 114 for a 14s8p and a few spares. Only the bottom pick is mine, the top two pics are the stock mahbattery shipped from. Original LG stock.

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macribs
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Re: LG HG2

Post by macribs » Feb 11, 2018 3:28 pm

Holy cap I thought you had put in an order of like 8000 cells when I saw the stack of Lg brown boxes. :mrgreen:

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