Last fire.. :-(

Ellcon123

New Member
Joined
Apr 10, 2021
Messages
17
I need the opposite (I’m using a bottom-balanced battery) but would appreciate seeing your circuit diagram is you’ve got something you can share…
I was originally wanting an lvd circuit and found this, http://www.reuk.co.uk/Simple-Low-Voltage-Disconnect-with-NE555.htm. Had trouble getting it working and then decided an lvd was not required. With the active balancer I wanted a similar circuit so looked at it again. A soldered dead short was suddenly obvious! The DROK meters also have relay control but need to be manually reset so it's the simple circuit that is in use. I am using an rp3 to collect BMS data and afterwards it dawned on me that this would be another way to control relays based on the data.
 

fafrd

Photon Sorcerer
Joined
Aug 11, 2020
Messages
2,276
I was originally wanting an lvd circuit and found this, http://www.reuk.co.uk/Simple-Low-Voltage-Disconnect-with-NE555.htm. Had trouble getting it working and then decided an lvd was not required. With the active balancer I wanted a similar circuit so looked at it again. A soldered dead short was suddenly obvious! The DROK meters also have relay control but need to be manually reset so it's the simple circuit that is in use. I am using an rp3 to collect BMS data and afterwards it dawned on me that this would be another way to control relays based on the data.
Nice!

If I get around to deciding I need to rig my own LVD trigger up, this approach will be near the top of my list…
 
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