Using battery power to go off the City's power grid

Ricevs,

You are absolutely medically correct about the importance of LOVE from your cardiologist.  It is important to have a technically competent cardiologist who has the needed experience in doing catheterizations, stents, but if you don't like his bedside manner that is going to impair your optimal recovery.  But a technically  inexperienced medical student with plenty of love will not offer you the best prospects.  We need both technical competence and emotional support from the doctor.  

We are only beginning to scientifically understand the mechanisms whereby emotional support produces better healing.  Stress reduction is important for cancer prognosis.  The most common stress-related condition, insomnia is mainly due to stress.  Stress impairs the immune system and many biochemical mechanisms.  A spouse who just lost her husband dies soon after, from the extreme grief which impairs her body in numerous ways.  The typical technician-only person thinks he can fix his body just by understanding the known scientific factors.  He won't understand the scientific correlates of emotions for 500 years, if ever.  So he scoffs at emotional factors and claims that love doesn't cure cancer.  He is wrong,  But most practical people know that the emotions are important even if they don't understand the technical basis for emotions.  The analogy with audio excellence is that careful and intelligent listening is employed in addition to technical analysis to get the best sound.  We don't understand all technical factors, but we have better sound than the technician who refuses to accept the evidence from his ears that something that sounds better may have worse specs.

I don’t know what he does but it makes no sense (to me...at this moment) what the manual says.....as long as the inverter can handle the surge of the component....then why would it matter which way you turn it on? I believe he leaves the inverter on all the time and turns his amps on and off via the amps.....his JC1+ amps have delayed start up using relays. I believe he leaves all his low level components on all the time....except maybe his 300B based preamp (got to conserve those expensive tubes). He leaves the charger plugged in and running except when listening......so he is always at full battery charge when he starts to listen.

I don’t know what you are talking about when you say "2 to three times your power needs". The inverter only supplies what it is asked. As long as the inverter is large enough, it will work. Now about sound....it could be a way larger than needed inverter will sound better....same with paralleling batteries......these things need to be sonically tested.

You need to have an inverter that will handle the SURGE turn on current of your gear. For instance, my 400 watt Goal Zero will NOT turn on my Purifi Class D amp that only draws 30 watts when idling......because the turn on surge of the power supply in the amp is way above the surge capability of the Goal Zero.....the Goal Zero shuts off when I try to turn on the amp......so, I have an AC switch on my amp that switches between the wall AC and the inverter AC. So, I turn on the amp with the wall AC and then I switch to the Goal Zero power. If I had a 1000 watt Inverter I am sure it could handle the turn on surge. Why would anyone buy an inverter less than 2000 watts (4000 watt surge)?.....They are sooooo cheap ($350 for a Giandel).

Doesn't make sense to turn on Giandel after equipment, you know how Chinese based manuals are, something usually lost in translation.

I always turned on my Rockpals prior to equipment power up, never had issue with in rush current. In rush current will be important consideration with both my dac and 845SET amp (if I chose to run on battery power), dac has bank of supercapacitors, 845 nearly 1000V at plate.

sns,

Good points.  From the international phone access code of 86, Giandel comes from Hong Kong.  I guess your Rockpal is the battery, so your procedure sounds logical.

Ricevs,

Makes sense, thanks.  If the inverter is on all the time, but all the electronics plugged into it are off, then there is no current draw from the inverter.  So the batteries won't get drained.  But if the low power electronics like preamp and sources are on all the time, then the batteries will drain at a slow but significant rate.  If you want to keep the low level electronics on all the time, then it seems that the most economical procedure is to keep the inverter off when not listening, then turn it on first, and then the power amp.  Does the battery charger get warm/hot when running the majority of the time?

Correct?