foundingpower programmable bms

No, they are not. Voltage can tell a balance only if you are hitting HVC with all cells at the same time.

Lifepo4, A123 amp20. This is the result after a 15km (9miles) run @ 3c.
Circuit: is that 0.07v gap is not good ?
 
Hi,so sorry for "disappearing" for a long time,as I am so busy these day.
I have been on a business trip so much that I even rarely see my daughter.
I have been to Japan.Korea,Malaysia,Taiwan....so many countries to seek a cooperation.
And I will be to Paris in June. :?

These days,we begin to develop a newer BMS with LTC6803-3 for E-bike(motor) like CS-BMS.
I can reveal some of the details:
* besides control throttle,add control switch lock function
When users forget to close the switch lock,car electricals will probably continue to consume the power of pack. When pack reaches a certain low voltage,BMS will cut off the switch lock automatically to protect the battery pack.
*add sleeping mode(less power)
Power supply of BMS is from battery pack.BMS will be in sleeping mode after 5 minutes no CHG/DCHG current and will monitor the CHG/DCHG state every 2 minutes.If there is no CHG/DCHG,BMS will continue in sleeping mode,or it will be recovered to work.

Because of a mount of mails,my mailbox has some problems.If anyone sent me the mail and get no reply,I am sorry for that.
This is my another mail box:23385395@qq.com
I will reply you ASAP.
P.S. If you do not get my reply,try to find it in your spam mail box. :wink:

Thank you for your supporting and understanding.
Eason
 
FoundingPower said:
.
And I will be to Paris in June. :?
Eason

Hello Eason, if you have time for a short meeting in Paris, you are welcome !
Send me a message if you are available,
Jpgey
 
Hi romelec and farfle,

do you got any time to test the bms? I'm still unsave if this product is the right choice for my electric motorcycle (24s Lipo). Any further review would help.

Thanks in advance.

Martin
 
Hello,

Unfortunately not much.
I took some pictures inside the case and yesterday night I soldered half of the wires to the batteries.
I hope that tonight or tomorrow I could finish the other part, and maybe plug it for the first time.

I will try to put the pictures here this week.
 
mj2412 said:
Hi romelec and farfle,

do you got any time to test the bms? I'm still unsave if this product is the right choice for my electric motorcycle (24s Lipo). Any further review would help.

Thanks in advance.

Martin

Mine just got in yesterday, and I'm out of town till Thursday. Ill have mine hooked up soon though.
 
I got mine in, but im waiting for my last nano pack to get here from the HK warehouse before I can start reassembling the pack :evil: :evil:. I may hook it up to a 12s pack here in the shop to fire it up, but I don't have the software yet.

Here are a few pics i took of it. IIRC this is the CS-BMS

20130329_121658_zpscc6e4664.jpg


20130329_121710_zps8becff86.jpg


20130329_121636_zpsc05ebb3d.jpg
 
999zip999 said:


Mine was 220 shipped for the bms, programming cable, 400A current sensor and lcd screen.

Here is a picture of it set up on a very unbalanced 24s 1p turnigy pack. Ill post up more when my phone isnt dead.

the pack18 cells at 4.15 and 6 cells at 3.85. Will check back on it in a few hours on its progress.

20130330_163345_zps33038762.jpg
 
Here are the other pictures:

Main screen (not calibrated yet):

20130330_163743_zps1dd0d863.jpg


The spaghetti:

20130330_163404_zps59f9a49d.jpg


Cells 1-8

20130330_163723_zps59fb2ee0.jpg


Cells 9-16

20130330_163728_zps68605a40.jpg


Cells 17-24

20130330_163732_zpsc1883721.jpg


Cell difference

20130330_163736_zps88dead8e.jpg
 
Farfle I alway's wish to see that cell what every I think it to be 1- 12 or 20, As I think I might have a clue on that one cell till I get over it and ride. Yes I have the need to know also as my 20ah cells almost alway's act like they should then better then mix it up voltage wise. But just all with in .040 So ?
 
Alrighty, after leaving the bms connected for 6hrs, all of the cells that were at 4.18v-4.16v got brought to 4.15 v even, and it was not balancing anymore. So the bms didn't take them down to the level of the other cells, but it also was not attached to a charger. On monday ill be hooking it up to my 100v meanwell stack and seeing how it performes cutting the charger in and out.
 
cwah said:
Quite expensive at 250USD but that looks nice!


Heckuva lot cheaper than the next option for 24s lipo packs. In fact, There isn't really any options besides e-car and e-moto BMS' s , and even some of those have less features. And you can't even get them under $350. If this guy works out in the long run, then 250 bucks is cheap cheap insurance for a $1800 pack.
 
Looks good, but i wonder how much the system draw a storage situation (connected but not balancing). Farfle do you perhaps have a posibility to mesure that?
 
Trilska said:
Looks good, but i wonder how much the system draw a storage situation (connected but not balancing). Farfle do you perhaps have a posibility to mesure that?

I have the capability to measure it, ill look and see what each of the channels draw. The way its wired, I think the chip is powered by 12 cells, as there is an extra balance wire in B-, cell 12 positive, cell 13 negative, and B+
 
When I contacted them, Eason (?) told me it had 100v mosfets and would not hold up to my 24s lipo's 100.8 volts. I was told I had to run 23s lipo in order to use this. I was ready to buy....

Tom
 
Farfle said:
cwah said:
Quite expensive at 250USD but that looks nice!


Heckuva lot cheaper than the next option for 24s lipo packs. In fact, There isn't really any options besides e-car and e-moto BMS' s , and even some of those have less features. And you can't even get them under $350. If this guy works out in the long run, then 250 bucks is cheap cheap insurance for a $1800 pack.

I'm looking to get a cheap but reliable BMS for 20s that would only pull 20A peak and 10A constant. So it doesnt' need to be as powerful as the one you're using.

Do you know if there's anything reliable and cheap in the market?
 
The programming looks awesome on this one but since I was told it would not work with my 24s I have been considering these but they do not have any programming, http://www.bestechpower.com/888v24spcmbmspcbforli-ionli-polymerbatterypack/

If yours works I think I will go back in that direction but wonder where I will put all that wiring and the controller box?

Tom
 
I don't see why it would not work. If it is rated at 100V and yours gonna be 100.8V what you do is you set your HVC to something 4.15V which will preserve your cells somewhat and overall voltage of your pack will be 99.6V
 
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