Questions tagged [bms]
A battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack)
320 questions
1 vote
1 answer
99 views
Connecting two batteries in parallel
I am building a POC with two COM-15208 buck-boost boards (5V/3.3V from 3.7V LiPo). Daily draw: ~1825 mAh (~76 mA avg). I have two 10000 mAh batteries available with me and I want to parallel two ...
- 4,047
0 votes
1 answer
113 views
Wouldn't taking power from part of a lithium battery cause imbalance?
In the attached schematic of a bms, the mosfet gates require around 12v to switch on/off. So they are directly taking power at the 3rd cell B3. Wouldn't this cause imbalance with the remaining cells(...
- 1,444
3 votes
3 answers
350 views
Is it safe to have power lines gently squeezed against BMS module?
3x 18650 batteries in series inside their compartment. If I want to include a BMS module then due to limitations on available space, my only option is to have the power lines gently squeezed against ...
- 81
0 votes
0 answers
48 views
Battery pack design for 72 V, 410 A UGV – advice on configuration and cell choice
I am designing a 72 V LiFePO battery pack for an unmanned ground vehicle with a turret, and I’d like feedback on cell format. Subsystem currents (72 V bus equivalent): Traction (2 motors, 2 drivers ...
- 367
0 votes
0 answers
65 views
Battery overvoltage detection circuit
I need to design a very simple battery overvoltage protection circuit, i.e. there's a string of cells connected in series, and if any of those cells has a voltage that exceeds a set threshold (...
- 183
0 votes
0 answers
72 views
How to disable Discharge while Charging and vice versa in a common port 2S battery charger
This is a latch circuit-based charger designed for a 2S battery. The main functionality of this board is to allow both charging and discharging through a common 3-pin blade connector while also ...
0 votes
1 answer
140 views
MOSFET's heating after 30A discharge load
I am currently working designing a board using a BQ40Z80. The load applied is max 60 A. I have used the recommended MOSFET CSD18540Q5B. This supports 29 A continuous drain according to the datasheet. ...
-1 votes
1 answer
63 views
changing my old screw driver batteries [closed]
i'd like to change my dead screw driver batteries , the batteries has no labels as the photos bellow , its charger delivers 6 volts and 300 mA 1.8VA. my question : is it possible to use Li Ion ...
