Dave in AZ
Solar Enthusiast
Thought this was best place to ask about issues on burning out a power station input. Moved it here.
I want to use a 12v 100Ah LiFePO4 battery to feed my power station, thus increasing its capacity a bit.
I have a Pecron e1500LFP, it has a 32-95v 700W input for mppt solar charge controller. It also has a 12-18v 100W max separate mppt scc input, but that took 17 hrs to drain battery as it went between 65w and 100W input.
I want to use the 700W input, and use a 12 to 48v step up converter to get battery voltage up to input range. I have seen folks reference using step up converters often when discussing boosting a solar panel array to meet inlut specs.
However, I have also seen a ton of cautions on burning out power stations or mppt SCCs by going over voltage spec. Then on the step up converter, it had a note that said, "do not connect to mppts or inverters". And one review said theirs randomly went from 48v output to 120, which is bad! I've also read of folks burning up their Starlinks after using a 12 to 48v step up to feed them.
So, are these step ups a problem for feeding an mppt? Is it an automatic NO due to unreliable voltage or failures on outputs?
Here are the product notes, which seem cut and dried, but again I read here suggestions all the time to hook these to solar panels and batteries...
Note:
* Never connect to solar panel, PWM/MPPT charge controller, inverter or wind turbine.
* Never charge the battery. Keep good air convection.
* Never reverse the polarity.
* Use the enough big cable to avoid the voltage drop.
Application:
12V DC battery as input power to 48V DC appliances as output load.
Here is the unit I was looking at
Cllena DC/DC 12V to 48V Boost Converter 10A 480W Step Up Voltage Regulator Module Car Power Supply Voltage Transformer (Input 10V-16V) https://www.amazon.com/dp/B0CKRX92Q...ann_lstpd_CT0XJNJ6KX4SQZ66VK46&language=en_US
I want to use a 12v 100Ah LiFePO4 battery to feed my power station, thus increasing its capacity a bit.
I have a Pecron e1500LFP, it has a 32-95v 700W input for mppt solar charge controller. It also has a 12-18v 100W max separate mppt scc input, but that took 17 hrs to drain battery as it went between 65w and 100W input.
I want to use the 700W input, and use a 12 to 48v step up converter to get battery voltage up to input range. I have seen folks reference using step up converters often when discussing boosting a solar panel array to meet inlut specs.
However, I have also seen a ton of cautions on burning out power stations or mppt SCCs by going over voltage spec. Then on the step up converter, it had a note that said, "do not connect to mppts or inverters". And one review said theirs randomly went from 48v output to 120, which is bad! I've also read of folks burning up their Starlinks after using a 12 to 48v step up to feed them.
So, are these step ups a problem for feeding an mppt? Is it an automatic NO due to unreliable voltage or failures on outputs?
Here are the product notes, which seem cut and dried, but again I read here suggestions all the time to hook these to solar panels and batteries...
Note:
* Never connect to solar panel, PWM/MPPT charge controller, inverter or wind turbine.
* Never charge the battery. Keep good air convection.
* Never reverse the polarity.
* Use the enough big cable to avoid the voltage drop.
Application:
12V DC battery as input power to 48V DC appliances as output load.
Here is the unit I was looking at
Cllena DC/DC 12V to 48V Boost Converter 10A 480W Step Up Voltage Regulator Module Car Power Supply Voltage Transformer (Input 10V-16V) https://www.amazon.com/dp/B0CKRX92Q...ann_lstpd_CT0XJNJ6KX4SQZ66VK46&language=en_US