I have a charger trying to drive about 600 mA constant current into the Otii Arc while at 4V. the current actually driven increases as i reduce the voltage so it appears I’m running into some limitation. Is this practice expected to damage the unit or is it okay to operate with the reverse current limiting in this way?
Hi,
Do I understand the set-up right:
You have an Arc in Power box mode, at 4V.
Connected to the banana connectors, you have a charger that delivers 600mA constant current.
When you lower voltage for the Arc, the current flowing into the Arc increases.
You would like to know if the set-up is OK from the Arc perspective.
Is my understanding correct?
If not, attach a drawing or similar, please.
Best regards,
Björn
That’s fully correct, thanks for looking to confirm. I see some other discussions about the device being able to accept up to 500 mA reverse, so my concern is that this setup may be out of spec or causing damage/deterioration.
As long as the Arc voltage do not exceed 5V, this is OK.
If the voltage on the banana connectors are higher than the set voltage, it will start a current sink of 1mA for each 1mV above set voltage, up to 500mA.
When 500mA is exceeded, the voltage will raise from the set voltage and make sure that you do not exceed 5V.
Best regards,
Björn