Re: Looking for turn-key BMS system

On Wed, 2 Oct 2024 15:12:22 +0200, Klaus Vestergaard Kragelund
<klauskvik@hotmail.com> wrote:

Hi
>
One of my clients is looking for replacing existing HW, 2 200Wh battery
modules, which each has a BMS controller, that monitors and balances 12
lithium ion cells (4 series connection of 3 parallel cells). Each of the
modules has SOC output in the form of LEDs.
>
Beyond that, the overall system has a BMS controller that is powered
from either 24VDC (grid connected) or from the batteries. This BMS
controller also has SOC, with a connected display.
>
The client would like a turn-key solution, so minimal NRE due to low volume.
>
I am looking for a supplier of finished batteries with BMS and also BMS
controller. Perhaps one of you guys has worked with this? (need a stable
supplier)
>
Client is based in the EU.
>
Thanks
>
Klaus

I have a list of future projects which includes a battery monitor. I
figure it might have a wire per cell (+1 at the end of the string) and
snoop voltage, ripple, and estimate cell impedance, something like
that. Measuring string current would help.