Which battery would you choose? 25r all the way!!!?

[markz]

I see GA, BL and BD cells I assume they all mean 18650-GA/BL/BD Lithium Ion. But I cant find no info on them. When I do its Alibaba which dont list no discharge. I am reading good reviews of the 25r cell. And I read lots of posts saying SuPower is reputable, and can build to spec if needed.

From another thread.....this just tipped me over the edge in favor of the 25r's, but I have no clue on the GA, BL and BD's.
http://endless-sphere.com/forums/viewtopic.php?f=14&t=70943&p=1070582#p1070582

The first three are not LifePO but Lithium Ion with NCA Kathode from Samsung.
But the 29E is way to weak. You need at least 6C if you only want a 1kWh pack.
My suggestion would be using 18650 cells, because any kind of LiPo pouch is very sensitive and the HK is just bad quality and overrated and also are very heavy.
The Samsung 25R is a ideal canditate as its very powerful (4kw/kg) and very lightweigth (200wh/kg) also it will last twice than the hk lipos.

Those 25r cells are looking mighty fine. Everybody seems to be raving about them. SuPower is selling a 24V 10Ah 60A 7S4P 25r pack with embedded BMS for $168, I can put 3 in series for $504 to make 72V 10Ah, to use with my Lyen 18fet 72V 65A. Or I can use 2 in series for 48V 10Ah 45A with a greentime 15fet irfb4110 controller for $50 shipped.

- I was wondering what, if any, problems there would be with this setup of multiple 24V10Ah 7S4P SuPower 25r battery packs in SERIES?

So by fluke I managed to find that 24V is 7S, which my iMax b8+ can charge up to 8S, even though its a measly 150W 7A charger, was very slow on my 16-20S RC Lipo. Would you recommend that charger (even though its low power and from HobbyKing) for 24V10Ah 25r over buying one from SuPower or Greentime?
If I can use my iMax b8+, then that just means no extra cost, for now. Which I am trying to save a some money.
At 24V I can use 6A, are these 25r's capable of 2.4C charging? Or is the rule of thumb always 1C, which I guess 1C for the pack is 10A. Hmm just answered my own question.

The other serious contender and I just about bought this one last night for $269. It is 48V 10.5Ah 13S (18650 cells = GA? which I cant find anything on), View attachment 1and I would have had to buy a 48V 45A Greentime controller $43 shipped, plus a 13S 48V 4A charger $50 shipped.
Thats what kind of stopped me in my tracks, "18650-GA", the title however states the pack can do 30A.


Heres a link/picture of what I got in mind. Just weighing cost, and which way I should go. Im thinking 48V10Ah, Greentime Controller, Greentime Charger.
But I will also weigh price/cost and s/h with supower as compared to greentime
http://www.aliexpress.com/store/pro...ry-charger-High-Quality/313864_935973593.html

http://www.batterysupports.com/48v-...ithium-liion-ev-battery-pack-w-bms-p-461.html
View attachment 3

http://www.aliexpress.com/store/pro...s-DC-Motor-Controller/313864_32218294528.html I dont know if its just a generic range of 48V-84V, or if there is a switch on the controller that changes it, or if I have to tell Greentime what to set it at. It would be nice if its just the range, but then the LVC wouldnt line up, unless theres a dip switch for that too.


I also found these, the first one in the picture is 36V 25r but lower Ah. Just wondering if their disharge rates listed on their website are correct or over-exaggerated. For the BD and BL (2nd and 3rd in pic below).


I am now definately leaning towards 25r,
This one all I need to buy is a 72V 4A charger from Greentime for $62 shipped. But since its two 36V in series, be better to go with one 36V2A $20shipped,
or 36V4A $45shipped. Now I can program my Lyen 18fet now, so good rocking times, just 7.5Ah wont last long. Which is why I am looking also at #2.
#1 - 2 x $188 = $376 for 36V7.5Ah60A
http://www.batterysupports.com/36v-37v-42v-75ah-60a-7500mah-lithium-liion-battery-pack-p-426.html

This one (below) all I need to buy is a 48V 45A 15fet irfb4110 Greentime controller for $50 shipped
#2 - 2 x $168 = $336 for 24V 10Ah 60A
http://www.batterysupports.com/24v-...ke-lithium-ion-battery-embeded-bms-p-429.html

 

[spinningmagnets]

How many amps do you need from the pack to make you happy?

How many miles of range do you need from this pack?

20A, 2500-mAh, Samsung INR18650-25R

20A, 2500-mAh, LG-Chem 18650HE4

15A, 3000-mAh, Samsung INR18650-30Q

10A, 3500-mAh, Panasonic-Sanyo NCR18650GA

10A, 3500-mAh, Samsung INR18650E

10A, 3500-mAh, LG-Chem INR18650MJ1,

10A, 3400-mAh Panasonic NCR18650B

10A, 3200-mAh, Panasonic NCR18650BD

 

[markz]

Before I couldnt program my Lyen 18fet.
To be honest, I liked the 40A default I got from my Lyen 18fet with RC Lipo Turnigy 4S 5Ah Hardcase, 16S which I forget what it was ~64V, on the mxus 3000w v2. So like I was told 1/3 of HK stats so that was 10C, 50A, sounds about right.
Which is why I put that option in, buying 48V battery pack and 45A greentime controller.
However I can now program my Lyen. And I want to program it!

I went stupid crazy fast on my previous setup, and that was 40A default.

This pack, as a "starter pack", I think 15km, which was 10Ah before.
When I get more cash, another 10Ah pack and Im set.

 

[riba2233]

How many amps do you need from the pack to make you happy?


10A, 3400-mAh Panasonic NCR18650B

Woah, hold your horses :lol:

panasonic B is only 5A cell, it would die at 10 A extremely fast.

Panasonic BD, BE, and PF are 10 A cells.

Also you're missing LG HG2, 20A, 3000 mah, and few 2.9 Ah 10 A cells, which are best bang for buck (PF, 29E)

Sanyo GA seems really fine, 28mohm, 3.5 Ah, 10 A, but still very expensive. Can't wait for it to become cheap

Also, worth mentioning, LG MH1 10 A 3.2 Ah, and samsung 32E, also 10 A 3.2 Ah. And of course Panasonic BE, same thing.