shopman
Solar Enthusiast
Sorry to say but I believe both inverters are shorted and dead. Do not make any more attempts to try and power them up. Do as Gavin said above and contact SS for further assistance.
In regard to pre-charging the inverter capacitors, the EG4 Lifepower4 batteries have a built-in pre-charge circuit. To use the built-in pre-charger, you make sure the batteries are OFF(breaker in off position) BEFORE connecting to your inverter. Once the battery is connected, turn on the battery breaker and as the battery powers up you might hear it making some snapping/pulsing noises. That is the pre-charge circuit pumping up the inverter capacitors. The battery may go into a fault state on the initial pre-charge and give you the red light with no power output in which case you turn off the battery, wait a second and turn it back on which will cause it to go through the pre-charge function again. They usually can complete the pre-charge in one or two cycles. There is no need to use a resistor or light bulb with these batteries.
In regard to pre-charging the inverter capacitors, the EG4 Lifepower4 batteries have a built-in pre-charge circuit. To use the built-in pre-charger, you make sure the batteries are OFF(breaker in off position) BEFORE connecting to your inverter. Once the battery is connected, turn on the battery breaker and as the battery powers up you might hear it making some snapping/pulsing noises. That is the pre-charge circuit pumping up the inverter capacitors. The battery may go into a fault state on the initial pre-charge and give you the red light with no power output in which case you turn off the battery, wait a second and turn it back on which will cause it to go through the pre-charge function again. They usually can complete the pre-charge in one or two cycles. There is no need to use a resistor or light bulb with these batteries.