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Charge Controller Question
#4
Controllers - I have 3 x Midnite Classic 150s, the oldest is 2 yrs and counting.   Besides being rock-solid/feature rich in general (e.g. 'the real thing') I particularly like:
- Full internet (RJ45 cable) access
- Simple Modbus access to retrieve/set anything you want over the internet remotely - so simple I could do it Smile.
- GCIF...   but also Arc Fault (detects loose/arcing wiring in the array hookup)
- Aux1 (and Aux2) external relays to control things - e.g. I use this to turn on/off my inverters based on battery voltage.
- Works smoothly in unexpected ways - for example I temporarily hooked up 30 panels to 1 unit (8400 watt potential  > 4200w max) last winter while waiting for the 3rd unit to arrive....   and found that when I got short bursts of sun and the panels exceeded the input - the unit continued to work smoothly and simply ignored the extra power...  Amazing.

The only other controller I have experience with is a small 24v/500w so I clearly have not done any comparisons   But I can get behind Midnite Classics as seem rock solid.   I haven't noticed any setting issues or loss of settings or anything close.   The only things I've had to do is
- Reduce output to 80a (instead of allowing 86a max) becasue my 80a circuit breakers tripped (and 4awg wire won't handle it) when the unit actually achieved 80a+ one day.
- Tweak Arc Fault sensitivity about 10% to avoid false alarms.
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Messages In This Thread
Charge Controller Question - by Wolf - 06-19-2020, 04:36 PM
RE: Charge Controller Question - by Wolf - 06-19-2020, 05:18 PM
RE: Charge Controller Question - by OffGridInTheCity - 06-19-2020, 06:32 PM
RE: Charge Controller Question - by Wolf - 06-19-2020, 06:58 PM
RE: Charge Controller Question - by Wolf - 06-19-2020, 10:49 PM
RE: Charge Controller Question - by Wolf - 06-20-2020, 10:36 AM
RE: Charge Controller Question - by Wolf - 06-24-2020, 02:46 PM

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