profdant139 wrote:
So that is my question -- if I get a bigger inverter, will it still drop to 11 volts and emit that shriek? Would a bigger inverter charge the laptop?
You don't mention the size of the inverter or how it is wired. If it is going through a 12V socket, it doesn't matter what size it is - the 12V socket only allows up to @110 watts.
Using my 150W inverter and a 12V socket (110W), I can either charge my laptop or I can use my fully charged laptop; I cannot both charge the battery and use the laptop. The wattage draw is too large for the socket.
I have three inverters: one alarms at 12V, one alarms at 11.5V, and one shuts down at 11.4V. Unless it is programmable (like my last one), you are at the mercy of the manufacturer.
Larger wires will not stop the alarm at 11V if your battery is actually reaching 11V. Larger wires will help the laptop charging issue provided the inverter is large enough for the load.
A larger inverter will not fix any of the above problems if it is not hard wired (12V socket limit). If it is hardwired, you will still have the problem of tripping at whatever preset the manufacturer set.
