Recently I’d built an off grid, portable backup power station with 100ah lifepo4 and Victron.
Everything runs cool and great, but I do have a question regarding pre-charging the inverter.
As it’s a very portable project (we will use it when off grid to charge our devices) I don’t have the intention to build a separate pre-charge circuit but I DO want to pre-charge the inverter when not used for a while to prevent possible (normal) sparking. Many people don’t do it but I prefer to do it as sparks could damage the battery terminals.
I’m using an old school light bulb (never use LED) that I temporarily connect in between the positive and battery before connecting and It works great.
My question is, while precharging, the lights on the inverter start blinking like a Christmas tree.
I think the inverter is telling that it doesn’t have enough juice, which is normal and the whole purpose of pre-charging.
I wonder if this blinking is harmful to the inverter and if there is a special pre-charge setting for the Victron inverter? I run it while the switch is in the ON position
Afterwards, when pre charge is completed and connected directly to battery all is running normal.
Thanks for sharing your thoughts on this!