Right now I have a device that works with a 24V NiMH battery. This device has a connector where the charger plugs so the battery can be charged, obviously, the problem is that recently a piece of metal got into this connector making a short circuit and showing a big pretty shiny light (an electric arc) leaving a big nasty black mark on the connector.
Now I'm having trouble finding a solution to prevent this. The idea was to put a protection circuit that disconects this connector from the battery when it the carger isn't connected.
I tried a relay to use only enable the circuit when the charger is on (and powering the coil) but once the circuit energized, the battery keeps the coil energized so it never shuts down.
Right now I have no idea which kind of circuit could disconnect the connector pins from the battery when charger is not plugged in.
Ideas ?
Now I'm having trouble finding a solution to prevent this. The idea was to put a protection circuit that disconects this connector from the battery when it the carger isn't connected.
I tried a relay to use only enable the circuit when the charger is on (and powering the coil) but once the circuit energized, the battery keeps the coil energized so it never shuts down.
Right now I have no idea which kind of circuit could disconnect the connector pins from the battery when charger is not plugged in.
Ideas ?