(ASK) BMS Power Consumption

[Vicriz]

Hi,

Kindly need your help related with lfp bms 15/16s 100a power consumption.
Anyone has checking how much the power consumption of lfp bms 15/16s 100a...?

Thanks

 

[HRTKD]

The answer likely depends on which brand and model of BMS. The Overkill Solar (aka JBD) BMS has a low power consumption, even less if the bluetooth module is disabled.

This is from the Overkill Solar Owner's Manual:

Q: What is the quiescent current? What can I do for long-term storage?
A: The quiescent current is as follows:
● 5.5 milliamps with everything off, when the BMS is active, but no bluetooth.
● 15 milliamps with the bluetooth active (after about 10 seconds it drops to 0.8 milliamps. Reconnecting it wakes it up again).
● 0.8 milliamps when the BMS is inactive.

So, assuming your battery setup is 100 amp hours, the BMS would run for 17 years. This proves that the BMS can be connected for long periods of time without any fear of it draining the battery.

Unplugging the balance connector would ensure complete shutdown

NOTE: The cell’s self-discharge rate will always cause the battery to drain over time, which may be several percent per month. This is simple chemistry and physics; there’s nothing that you or the BMS can do to avoid the battery cells from self-discharging over time, other than to occasionally top up the batteries.

 

[Vicriz]

The answer likely depends on which brand and model of BMS. The Overkill Solar (aka JBD) BMS has a low power consumption, even less if the bluetooth module is disabled.

This is from the Overkill Solar Owner's Manual:

Thanks for the information.
Let me check with manufacturer