foundingpower programmable bms

Batteries, Chargers, and Battery Management Systems.
XLR8
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Re: foundingpower programmable bms

Post by XLR8 » Mar 31, 2015 8:27 pm

mucek wrote:N4 is step down switcher. Power "logic" is to have step down to 6-7 V, then LDO to 5 V and another LDO from 5 to 3V3.

Usually problem is in one resistor (100R) close to it (may be on other side of PCB), which gets burned (should be replaced with 47R!). Other problem I noticed is bad diode on stepdown.

Regards,
Gregor
Thank you, Gregor.
What is the manufactures product number of N4 ? Also, what is the name of the 100 ohm resistor and is the diode D56 or D52?
Regards, Kev

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mucek
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Re: foundingpower programmable bms

Post by mucek » Apr 01, 2015 11:55 am

Hi!

The problem is, that PCB on Vodka's images is older PCB revision and elements silkscreen markers doesn't match with new PCB anymore. I only have (and I have studied) new ones. Diodes are Schottky SMB size (near switcher coil), I don't think that exact model is important.

Regards,
Gregor
Electronic equipment doesn't work on a electricity base, but on a smoke ... When the smoke comes out, it stops working! Simple, right?!

XLR8
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Re: foundingpower programmable bms

Post by XLR8 » Apr 02, 2015 1:55 am

Hi Gregor,

What do you think the IC manufacturer's number for the step-down switcher would be? It measures 3mm by 3mm with "MKAE" and "SAYB" printed on it and has 8 legs.
Regards,
Kev

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mucek
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Re: foundingpower programmable bms

Post by mucek » Apr 03, 2015 8:30 am

Yap, that's it ...
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Electronic equipment doesn't work on a electricity base, but on a smoke ... When the smoke comes out, it stops working! Simple, right?!

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mucek
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Re: foundingpower programmable bms

Post by mucek » Aug 11, 2015 11:51 am

A short and dirty :) way to control bistable relay (relay, which only consumes power on state change) using "normal" relay control signal ... Did some thinking over that and this is, what came out: http://www.ecat.si/2015/08/bistable-relay-driver/

Regards,
Gregor
Electronic equipment doesn't work on a electricity base, but on a smoke ... When the smoke comes out, it stops working! Simple, right?!

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drewjet
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Re: foundingpower programmable bms

Post by drewjet » Oct 27, 2015 4:38 am

Does anyone have the latest software for this? Mine has been working fine, for a long time, but started sounding warning beeper and wont allow charging. My laptop that I used to use to connect to it died, so need to download it onto a new laptop.

TIA

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mucek
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Re: foundingpower programmable bms

Post by mucek » Jan 01, 2016 2:30 pm

Did you receive it sucessfully?

Regards,
g
Electronic equipment doesn't work on a electricity base, but on a smoke ... When the smoke comes out, it stops working! Simple, right?!

thejun
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Re: foundingpower programmable bms

Post by thejun » Sep 15, 2016 4:33 pm

The link is broken. I am looking for a good BMS for 20 and 22s batteries. Programmable would be good, but it is not really needed so long as the cells will balance at a SOC below 90%. Bluetooth read out of cells' SOC would be awesome. Can anyone tell me where to find this?

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mucek
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Re: foundingpower programmable bms

Post by mucek » Sep 24, 2016 2:07 pm

Hi!

smartBMS as described is no longer avalible due to production issue (Foundingpower company was closed a while ago) and I now work with another BMS from Slovenian company Emsiso (also I did part of development) with similar options (actually far more) and price (without VAT) of 400 EUR + 60 EUR for Bluetooth addon (HW+SW).

Similar functions:
- 24 S
- Fully programmable

New features regarding to smartBMS:
- Higher balancing current (0,5 A vs. 0,2 A), cooling through aluminium casing, which is supposed to be mounted on some metal area.
- Two communication outputs (RS232), one for computer (programming etc.), one (galvanic isolated!) for streaming data (to motor computer or display)
- 30 A charging relay, 12 V/500 mA output to control external charging relay (in case of higher charging currents)
- 5 A ignition out output to control discharge power relay (shuts down when undervoltage or other error condition)
- Analog output 0-10 VDC, which directly corresponds with SOC (0V = 0%, 10V = 100%; i.e. 5V = 50%)
- Advanced balancing algorithm
- Auto charging re-start in case of BMS overtemperature or overvoltage (smartBMS stopped charging and waited the charger to be disconnected)
- Way more programming options
- Completely new written BMS application (Android) with several advanced functions, such as efficency display (kWh/100km), kWh counter, power/efficiency graph for last 10 minutes etc. Still under heavy development, but usable already ... (using every day, which means I add some stuff every day as well, as I remember of something ;) )
- More rugged device

However, new BMS doesn't come with equipment, so you have to get locally:
- hall current probe (I reccoment LEM, see HASS datahseet)
- connectors (MOLEX, you can get them from old computer power supplies as well)
- temperature probes (10k NTC)
(I am thinking of creating a "set" of those components, but don't have one yet)

Regards,
Gregor

p.s. I really have to kick myself in the butt and finally put this on webpage ;)
p.p.s. Main screen is from my Smart Fortwo, now running electric! :) (18S Kokam 200 Ah cells + 15 kW asynchronous motor, running up to 25 kW in peaks)
Attachments
Manual-bms2405.pdf
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Datasheet-bms2405.pdf
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hass_e_rev14.pdf
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2016-08-25 08.25.53.jpg
Electronic equipment doesn't work on a electricity base, but on a smoke ... When the smoke comes out, it stops working! Simple, right?!

mark133
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Re: foundingpower programmable bms

Post by mark133 » Oct 09, 2016 9:35 am

XLR8 wrote:Today I received a LY.UCS-BMS 4-24S. I ordered it on 22/10/2012, they sent it 3 days later which is what they said they would do and it only took 5 days to get here in Brisbane.
Image
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They forgot to send the software so I have sent off an email for it.
Hi I have one of these BMS's on my bike battery but somehow it went bang today and a component started smoking on the main PCB!!!!

Am I able to get a replacement kit or has it all been updated and there is something newer out there

My battery is a18s
Battery type: Lifepo4 A123
Charge voltage: 65.7
Charge current: 10amps

TIA

Mark

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mucek
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Re: foundingpower programmable bms

Post by mucek » Oct 16, 2016 6:33 am

Hi! I replied you via email. Check and let me know ...

P.s. new app is developing fast ...
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Electronic equipment doesn't work on a electricity base, but on a smoke ... When the smoke comes out, it stops working! Simple, right?!

mark133
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Re: foundingpower programmable bms

Post by mark133 » Oct 16, 2016 7:12 am

hi haven't received an email but I had already spoken to you via your website, just waiting to replace that diode and insulted you suggested

thanks

mark

mark133
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Re: foundingpower programmable bms

Post by mark133 » Oct 23, 2017 1:53 pm

Not sure if anyone looks here anymore but I don't suppose any one has a circuit diagram for small control boards that had 2 MOSFETs on it? As something has failed where the charger won't kick in when it should

Tia

Mark

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