July 5, 20197 yr Hi guys i need to clarify something. What is the start up voltage of the 250/100 Victron mppt charge controller. If you read the brochure is states the start up volt 245 with the absolute maximum of 250 volt. This does not make sense to me. Even if you look at the 150/100 it also states start up 145 volt and absolute max is 150 volt.
July 5, 20197 yr If the input is above 245V, then the MPPT will not even attempt to start. It's not going to blow up, but it's not going to start either.
July 5, 20197 yr Perhaps a bit more is in order. The top 5V is for a protection margin. It won't even attempt to operate that high up, for safety reasons. Compared to the other popular MPPT around here (the one in the Axpert) it's similar and better. The Axpert's starts to derate from 135V upwards and also stops slightly short of its max rating. In other words, this is pretty typical for MPPTs.
July 5, 20197 yr 13 hours ago, vulgrim said: What is the start up voltage of the 250/100 Victron mppt charge controller. For any voltage MPPT 75/? . 100/?, 150/? and the 250/? the start up voltage is the same. The victron differs from most other MPPTs as it will start at Battery voltage plus 5 volt and stop working at battery voltage + 1 volt. Look right at the bottom of the data sheets, you'll find this little piece:
July 8, 20197 yr What Jaco said. Battery voltage plus 5V. Except when you use it as a power supply (it defaults to 12V out of the box). Then that voltage plus 5V 🙂
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