Hey @Namasaki, I just finished to build a 10s4p battery pack with Samsung 30Q cells.
I’m now going to place an order for a BMS. I also bought an anti-spark switch.
I remember you said that if you get Bestech BMS with a built-in ON/OFF switch, you have to turn the board
ON to get it charged.
When using anti-spark switch and Bestech BMS, do I still need to turn ON the board in order to charge it?
Does it also valid of SuPower BMS?
By the way, earlier in this post you showcased your BMS configurations that you use.
If I build another 10s pack but this time with Samsung 25R cells, do I need to change the configuration?
If you use the Bestech with built in e-switch, you have to turn it on to charge.
If you use the Supower, You’ll need an external switch.
NOTE: I have found the Bestech built in e-switch to be reliable but external e-switches are commonly unreliable.
I have been charging both of my builds with them on for a year or longer and it hasn’t been a problem.
The Vescs are on but just sitting idle.
I think only the one’s with the built-in switch do that.
The switch also doubles as a reset button in case the bms goes into protection mode.
BMS’s that don’t have an on/off/reset switch require you to disconnect the battery and reconnect to reset them.
Hey @Namasaki, I’m about to group buy with @koralle the HCX-D131 BMS (the one with no e-switch).
Would really appreciate if you could re-check these settings and let me know if they can be used for 30Q
and 25R Samsung batteries.
They are a bit weird. A week ago I had a 4-email-conversation with them within 20min. Now they are not answering me either. Maybe its a holiday over there or something…
You know, I looked up Supower on eBay because the shipping on their site was rediculous. I found their official eBay store and they had listed that they where on vacation. The English was a little off but it seemed like they would be out till the end of February! That definitely delays my build if supower and bestech are doing the same thing. I think Chinese New Year is on the 15th of February, so maybe it’s that.