DBA Forum (B) - David Beaumont
2014-10-21 16:54:06 UTC
I got round to installing this today and ran a few tests.
It ran 3.2kw load continuously but with the warning buzzer on. On investigation this was caused by my batteries dropping to 10.5V at the inverter connection, although still 11.7V at the battery end. So despite having four enormous and short copper starter leads they were still getting hot, causing the voltage drop). Loading over 3.2KW caused the voltage to drop further and the inverter to trip off (the low voltage trip is 10V).
To be honest I can't envisage us needing more than 3.2KW ( I would have bought a 3KW inverter except that the 6KW was cheaper). Or indeed having the battery capacity to sustain over 3.2KW. So I won't be adding more 12V leads yet although I could connect 4 more.
The DC drain while the inverter was on, in normal mode, with no load, was 4 to 5 amps. So about 60W, that doesn't seem too bad, is it?
Power saving mode is interesting, - switch on a mains light and it flashes on every 5 seconds then off again . This is by design. According to the manual a 25W load will wake it from this power saving. My fridge did wake it, I guess I'd need to try it overnight to be sure though. I suspect power saving mode is only saving 40-50W so I'd be tempted to leave it on normal mode and have the benefit of everything working all the time.
The battery charger function seems fine, it is consuming 1.7KW as I write and batteries are at 13.7V and rising. It did trip the 32amp overload again when first switched on but has settled down now.
49.9Hz, 230V output on my meter, I'm happy with that.
Not as easy to secure as my old PowerJack - there are no lugs. Also it came with no 12V leads.
David
It ran 3.2kw load continuously but with the warning buzzer on. On investigation this was caused by my batteries dropping to 10.5V at the inverter connection, although still 11.7V at the battery end. So despite having four enormous and short copper starter leads they were still getting hot, causing the voltage drop). Loading over 3.2KW caused the voltage to drop further and the inverter to trip off (the low voltage trip is 10V).
To be honest I can't envisage us needing more than 3.2KW ( I would have bought a 3KW inverter except that the 6KW was cheaper). Or indeed having the battery capacity to sustain over 3.2KW. So I won't be adding more 12V leads yet although I could connect 4 more.
The DC drain while the inverter was on, in normal mode, with no load, was 4 to 5 amps. So about 60W, that doesn't seem too bad, is it?
Power saving mode is interesting, - switch on a mains light and it flashes on every 5 seconds then off again . This is by design. According to the manual a 25W load will wake it from this power saving. My fridge did wake it, I guess I'd need to try it overnight to be sure though. I suspect power saving mode is only saving 40-50W so I'd be tempted to leave it on normal mode and have the benefit of everything working all the time.
The battery charger function seems fine, it is consuming 1.7KW as I write and batteries are at 13.7V and rising. It did trip the 32amp overload again when first switched on but has settled down now.
49.9Hz, 230V output on my meter, I'm happy with that.
Not as easy to secure as my old PowerJack - there are no lugs. Also it came with no 12V leads.
David