CHEAP NEW ORYGINAL CELLS LI-ION 18650 FROM 0,99$ 2200-3500mAh!

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Hardergamer
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Re: CHEAP ORYGINAL CELLS 18650 3500mAh

Post by Hardergamer » Oct 09, 2017 7:51 pm

LI-ON's 18650 are safe i have cut them in half put them in fire blown holes in them when spot welding them, about 30+ cells i have busted made by Panasonic pf's Sony vt4/5 Samsung29e 30q's 25r etc.. and have never seen one explode! or start a fire but i have stabbed LI-POs and and they have burst into flames.. Just look at them Panasonic Tesla cells!

https://www.youtube.com/watch?v=c0IHNrW0QOA

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Re: CHEAP ORYGINAL CELLS 18650 3500mAh

Post by jeorghe » Nov 06, 2017 1:15 am

Hi ,
someone knows how I can contact Tumich please ?
Thanks :)

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brumbrum
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Re: CHEAP ORYGINAL CELLS 18650 3500mAh

Post by brumbrum » Nov 06, 2017 2:45 am

Send him a private message. This is the only way he answers

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Re: CHEAP ORYGINAL CELLS 18650 3500mAh

Post by jeorghe » Nov 06, 2017 6:58 am

Thanks.

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tumich
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Re: CHEAP NEW ORYGINAL CELLS 18650 SANYO GA 3500MAH

Post by tumich » Nov 21, 2017 5:53 pm

New part of Sanya Ga available, new in boxes, (never been welded)
My ebikes:
1. Ebike with Bosch CX
2. Cargo ebike with custom 4,5kWh battery and Bafang Ultra Drive 1000W
3. Treking bike with 250W PAS and 34Ah battery

Cheap, new, oryginal li-ion cells 18650 up to 3500mAh from 0,99$/each!-> https://endless-sphere.com/forums/viewt ... 31&t=61608

rio9210
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Re: CHEAP NEW ORYGINAL CELLS 18650 SANYO GA 3500MAH

Post by rio9210 » Nov 27, 2017 4:19 pm

Future plan for 20700B cells ?
Or just 18650 forever ?

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tumich
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Re: CHEAP NEW ORYGINAL CELLS 18650 SANYO GA 3500MAH

Post by tumich » Nov 29, 2017 2:21 pm

rio9210 wrote:
Nov 27, 2017 4:19 pm
Future plan for 20700B cells ?
Or just 18650 forever ?
Probably yes but who knows when :P
My ebikes:
1. Ebike with Bosch CX
2. Cargo ebike with custom 4,5kWh battery and Bafang Ultra Drive 1000W
3. Treking bike with 250W PAS and 34Ah battery

Cheap, new, oryginal li-ion cells 18650 up to 3500mAh from 0,99$/each!-> https://endless-sphere.com/forums/viewt ... 31&t=61608

wattshere
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Re: CHEAP NEW ORYGINAL CELLS 18650 SANYO GA 3500MAH

Post by wattshere » Nov 29, 2017 2:29 pm

Energy density of 20700 seems worse than the 18650's at the moment.

dfortal
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Re: CHEAP NEW ORYGINAL CELLS 18650 SANYO GA 3500MAH

Post by dfortal » Dec 23, 2017 10:43 pm

Is there anyone in Toronto/Mississauga,Canada area willing to make me a complete battery pack 36v, ready to use with these sanyo cells?
thx

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tomjasz
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Re: CHEAP NEW ORYGINAL CELLS 18650 SANYO GA 3500MAH

Post by tomjasz » Dec 23, 2017 10:55 pm

dfortal wrote:
Dec 23, 2017 10:43 pm
Is there anyone in Toronto/Mississauga,Canada area willing to make me a complete battery pack 36v, ready to use with these sanyo cells?
thx
Lowest lifespan of the appropriate batteries available. Consider another choice or accept a shorter lifespan.He's had better cells available and I'm hoping soon...
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

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tumich
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Re: CHEAP NEW ORYGINAL CELLS 18650 SANYO GA 3500MAH

Post by tumich » Dec 28, 2017 2:18 pm

tomjasz wrote:
Dec 23, 2017 10:55 pm
dfortal wrote:
Dec 23, 2017 10:43 pm
Is there anyone in Toronto/Mississauga,Canada area willing to make me a complete battery pack 36v, ready to use with these sanyo cells?
thx
Lowest lifespan of the appropriate batteries available. Consider another choice or accept a shorter lifespan.He's had better cells available and I'm hoping soon...
Why do you think that have lowest lifespan? Depends on discharge rate like all cells. Maybe Panasonic's PF have better life span due to Fe in chemistry but doesn't have 3500mAh :) Sanyo Ga are optimal - relative high discharge with maximum capacity in that size.
My ebikes:
1. Ebike with Bosch CX
2. Cargo ebike with custom 4,5kWh battery and Bafang Ultra Drive 1000W
3. Treking bike with 250W PAS and 34Ah battery

Cheap, new, oryginal li-ion cells 18650 up to 3500mAh from 0,99$/each!-> https://endless-sphere.com/forums/viewt ... 31&t=61608

youyoung21147
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Re: CHEAP NEW ORYGINAL CELLS 18650 SANYO GA 3500MAH

Post by youyoung21147 » Jan 16, 2018 12:46 pm

@tomjasz I have bought these cells from Tumich last year. I put one in accelerated testing 4.01 to 2.8V /6A. After 1100 cycles it was still giving >2800mAh under manufacturer test conditions.

And in real life, my commuting ebike that has seen approx 60 cycles in a year still outputs 95% of its original usable capacity.

These cells are good for ebike use as long as you don't charge them fast and dont need the high current. Because their true Achille's heel is that the internal resistance increases a lot with cycling. The capacity fade is totally acceptable.

I would only rate the 18650BM as superior in terms of cycle life.

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tumich
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Re: CHEAP NEW ORYGINAL CELLS LI-ION 18650 FROM 1,49$ 2200-3500mAh!

Post by tumich » Jan 17, 2018 7:09 pm

New part of cells from 1,49$ each!
Sony V3, Samsungs 22P, 29E and Panasonic 18650A.
My ebikes:
1. Ebike with Bosch CX
2. Cargo ebike with custom 4,5kWh battery and Bafang Ultra Drive 1000W
3. Treking bike with 250W PAS and 34Ah battery

Cheap, new, oryginal li-ion cells 18650 up to 3500mAh from 0,99$/each!-> https://endless-sphere.com/forums/viewt ... 31&t=61608

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tomjasz
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Re: CHEAP NEW ORYGINAL CELLS LI-ION 18650 FROM 1,49$ 2200-3500mAh!

Post by tomjasz » Jan 17, 2018 8:15 pm

tumich wrote:
Jan 17, 2018 7:09 pm
New part of cells from 1,49$ each!
Sony V3, Samsungs 22P, 29E and Panasonic 18650A.
YIKES!! Incredible prices on some real workhorse cells. My 22P 36V packs and 29E 48V packs are some of the most durable I have. Not high power but perfect for 15-20A applications. I wish I needed cells. These should not last long! NICE!!!
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

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Ptit_Philou
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Re: CHEAP NEW ORYGINAL CELLS LI-ION 18650 FROM 1,49$ 2200-3500mAh!

Post by Ptit_Philou » Jan 18, 2018 3:23 am

I use Sanyo GA 3500 in electric scooter E-ton/Matra e-Mo+ and they are very good.
Lot of tests on Internet to confirm that : among the bests, no hesitation ! :wink:
e-Scooter Matra e-MO+ (Eaton) + battery 15 Ah

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tomjasz
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Re: CHEAP NEW ORYGINAL CELLS LI-ION 18650 FROM 1,49$ 2200-3500mAh!

Post by tomjasz » Jan 18, 2018 10:25 pm

Shorter cycle life.
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

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Ptit_Philou
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Re: CHEAP NEW ORYGINAL CELLS LI-ION 18650 FROM 1,49$ 2200-3500mAh!

Post by Ptit_Philou » Jan 19, 2018 4:25 am

OK Tomjasz : can you share data and links about shorter cycle life for Sanyo Ga 3500 please ? :)
e-Scooter Matra e-MO+ (Eaton) + battery 15 Ah

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tomjasz
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Re: CHEAP NEW ORYGINAL CELLS LI-ION 18650 FROM 1,49$ 2200-3500mAh!

Post by tomjasz » Jan 19, 2018 11:52 am

Ptit_Philou wrote:
Jan 19, 2018 4:25 am
OK Tomjasz : can you share data and links about shorter cycle life for Sanyo Ga 3500 please ? :)
Ptit_Philou wrote:
Jan 18, 2018 3:23 am
"Lot of tests on Internet to confirm that"
Lots of anecdotal posts referring to sag and heat when run at rated amps. Suggested by many power users that 5A is a better rating for longer service. There have been many discussion on ES FB. Obviously your mileage is different. but many users pushing 40A+ controllers are suggesting lots of sag and shorter cycle life!
I think a battery should be chosen on specific application not one battery for all.
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

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