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Post by buddy40 on Feb 29, 2020 15:39:06 GMT
I have a small PV system setup on my shed:
solar: 2 x 100W poly
cc: Renogy Rover 20
batt: 100 Ah AGM, Renogy
I am using a Renogy BT-1 module with BT app to remotely monitor system. Currently, my only load on the system is an exterior 4W LED light on for 5 hrs/night (1.67 Ah/day). Periodically, maybe 1 or 2 days/month, the monthly chart display in the BT-1 app is reporting a min battery voltage of 10.2V which is not possible. Min voltage is averaging 12.6-12.7V. I check the Rover display periodically and have never seen the voltage below 12.6V. This seems to me like bad data. Has anyone seen this before?
thanks
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Post by Admin on Mar 2, 2020 18:35:57 GMT
I have a small PV system setup on my shed: solar: 2 x 100W poly cc: Renogy Rover 20 batt: 100 Ah AGM, Renogy I am using a Renogy BT-1 module with BT app to remotely monitor system. Currently, my only load on the system is an exterior 4W LED light on for 5 hrs/night (1.67 Ah/day). Periodically, maybe 1 or 2 days/month, the monthly chart display in the BT-1 app is reporting a min battery voltage of 10.2V which is not possible. Min voltage is averaging 12.6-12.7V. I check the Rover display periodically and have never seen the voltage below 12.6V. This seems to me like bad data. Has anyone seen this before? thanks If you have verified with a multimeter and your Rover controller that your battery voltage is 12.6 to 12.7V, then there might be some sort of glitch with your BT-1 app. We recommend doing a hard reset by disconnecting and reconnecting the BT-1 module and pairing it with your app again when the blue light on the module blinks. The app should also be updated to the latest version. -Renogy Team |
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Post by buddy40 on Mar 6, 2020 1:54:06 GMT
I have checked with a multimeter and the voltage is typically 12.6-12.7v. The problem is the low voltage reading in the BT-1 app is intermittent. I have only seen it it the monthly data chart. To confirm, I would have to use a battery monitor or a multimeter with logger, which I don’t have. The intermittent low voltage data must be erroneous as the battery could not have discharged that low given the current load and when looking at the charging Ah from the same monthly chart.
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Post by tattoo on Mar 6, 2020 2:34:32 GMT
I have checked with a multimeter and the voltage is typically 12.6-12.7v. The problem is the low voltage reading in the BT-1 app is intermittent. I have only seen it it the monthly data chart. To confirm, I would have to use a battery monitor or a multimeter with logger, which I don’t have. The intermittent low voltage data must be erroneous as the battery could not have discharged that low given the current load and when looking at the charging Ah from the same monthly chart. So you don't think that several very rainy cloudy days in a row could be the reason for the low voltage? Or do you live where you get little rain? But 10.2 is very low............ |
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