Victron Multiplus Compact 2000 without voltage sensing?

[careka]

Originally Posted by FlyingCloud1937

4 x165amp gel.........run a 2 kw inverter. ?

your bank is to small.


Lloyd

OK.
Then i ask, what if i put in 4 x Trojan L16G-AC (total of 780amp/12volt)
is that OK for a 2000 watt inverter, that mostly will be used to boil water.

[Fuss]

Originally Posted by careka

OK.
Then i ask, what if i put in 4 x Trojan L16G-AC (total of 780amp/12volt)
is that OK for a 2000 watt inverter, that mostly will be used to boil water.

Assuming that most electric kettles are 2000-2300w....
You will have problems with 780, you need at least 1000. The 780 might work ok when the batteries are at 100%.

Secondly, to boil water with an electric jug, you need your inverter to be able to withstand 2200 and maybe 2400 watts depending on the kettle.

As an example, I had an earlier model Victron inverter that was rated I think at around 1600w, and for a year or so I overloaded it with a 2200w jug with no problems. When it was overloaded the lights flashed at a speed that indicated the level of overload.

I am not recommending that you do this and it is probably best that you get an inverter that can handle the rating of the electric kettle that you use.

[careka]

Well there is many water boilers at 1000watts-1400watts,/ 220volt so i don't have to use the 2200watts once.
And i did read in the Victron page that they say that it takes around 100watts to boil 1 liter.

[Fuss]

Originally Posted by careka

Well there is many water boilers at 1000watts-1400watts,/ 220volt so i don't have to use the 2200watts once.
And i did read in the Victron page that they say that it takes around 100watts to boil 1 liter.

Thats true, I assumed that anyone using an inverter would want to do it at least as fast as gas. However, if you dont mind waiting 10 minutes or so then I guess its fine.

[roetter]

On my boat I had a total of 840Ah Exide Lead acid batteries with a single Multi Plus 3000. It worked fine when the batteries were absolutely full, but that is rarely achieved when cruising as it takes forever to charge the last 20%. So the batts usually operate between 80% and 50% state of charge. In the morning when they are near 50% is usually my time to use the inverter. The espresso machine is on (1500W) and then my wife starts the toaster (another 1000W) for a totals of 2500W. Off course we had low voltage alarms under that load even thought the batteries were less than 6 months old and I ran 2x50mm2 to the inverter less then 3m (9feet) long. I blamed the batteries not the inverter. The internal resistance of lead acid batteries under high loads is just too big.

Another reason why I am now switching to LiFePo batteries. Those batteries will only "sag" down to about 13V with that load.