We are planning to integrate the BatteryProtect system into our fleet and would like to inquire about the possibility of adding a specific feature.
Would it be feasible to include an additional button on the home screen that allows users to temporarily override the minimum voltage threshold? Ideally, this override would be time-limited, between 1 to 5 minutes—allowing the battery to reconnect briefly even if the voltage has dropped below the cutoff (e.g., 10V).
The goal is to maintain battery protection from undervoltage while still enabling the vehicle to be started without requiring a jump start in certain situations.
We’d appreciate your feedback on whether this functionality could be implemented, and if so, what the requirements or limitations might be.
@Durante If you are using this on a vehicle are you able to separate the alternator charging into a different cable to the start motor and other loads. The Battery Protect can only accept current flow in one direction. Note that engine cranking loads will exceed the nominal Battery Protect rating, extended cranking may damage the device.
@pwfarnell Thank you forthe quick response and the important considerations regarding current flow and engine cranking loads.
To clarify, we are planning to implement the BatteryProtect system in our **electric vehicle (EV) fleet.
In this context, the main purpose of the override function would be to briefly power up the system so that the high-voltage system can activate and take over. There is no traditional engine cranking involved, and the current draw during this brief activation period is minimal, just enough to initialize the control systems.. Max 100A.
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Very interesting application then.
Just to clarify our use case: we’re looking to safeguard against user error or system faults in our “EV fleet”. When the high-voltage system shuts down, the 12V battery is no longer charged. Something as simple as leaving an accessory plugged into the cigarette lighter can drain it.
This leaves us with a charged high-voltage battery, but no way to power the vehicle because the 12V system is needed to activate the HV circuit. An override button to momentarily reactivate the 12V system would allow the HV system to boot and take over.
This would greatly improve reliability and reduce field interventions, especially with LiPo 12V batteries, which can be damaged if they drop below their minimum threshold like in Tesla and other OEMs.
Would this kind of feature be something your team could consider?