Li-Ion 6s Charger BMS and cell recommendation

[zipporobotics]

I need to build Two 6s packs with 20 AH capacity each using Li-ion batteries
Don't need more than 2C discharge

Pointed my eye on: Samsung ICR18650-30B cells and ICR18650-32A cells.

I know the A revision has 4.35 Full charged voltage and I will need a different charger for these cells.

Any recommendation about a charger and a BMS for these cells ? (recommend better cells if you have them in mind)

I'm looking to spend about: 3 - 3.30 dollars per cell.

Any recommendations for suppliers in China ?

 

[Nobuo]

if you want spend around $3 on authentic cells you should point to below 3000mAh cells like cheap samsung INR-18650 29E, Panasonic NCR18650 PF or LG MG1 2850mAh. Contact tumich for cheap new and high quality cells.

http://endless-sphere.com/forums/viewtopic.php?f=31&t=61608

 

[zipporobotics]

Mmmm if I got a quotation for 2.50 each of ICR18650-30B on Besttechpower; might they be fake ?

What about a 10 amp 6s Charger ?

 

[Nobuo]

If that price include shipping costs, is possible they would be fake, unless you are buying around one thousand of cells.

On the other hand Besttechpower are a good reputation manufacturer for BMS stuff.

If that charger is for your 20Ah lithium battery, I would recommend to you a 6A one. that's 0.3C charging, the maximum recommended for a healthy cells.

Also it cost the half than a 10A one.

 

[dnmun]

they do not manufacture batteries. so henry never gave him a quote for batteries so don't know why he said that.

 

[zipporobotics]

they do not manufacture batteries. so henry never gave him a quote for batteries so don't know why he said that.

They only do BMS and they are Awesome !

I've got the quote from ADA for 78x ICR18650-30B at 2.50 Dollars each. But I've been told that they buy the cells from someone else.

Should I trust them or would you recommend a different place to buy the cells ?


Regarding the charger: I'm going to build two Different 20AH Packs that will always stay in parallel and be charged in parallel on the same system. I can't build a single 40Ah pack due to space restrictions.

Using a 10 amps Charger I would charge at 0.5 C. I would go for a 12 amps charger if 0.8 C still keeps healthy cells.

Any advices where to get one for 6S ?

 

[zipporobotics]

So...

Can you recommend some trusted suppliers I can ask a quote to ?


I need to get quotes for:

Samsung ICR18650-30B and 32A

BMS

10-12 Amps 6s Chargers

A123 Cells

Different places are welcome