I found one 350w, but do I have to worry if my car be able to produce such a power?
The intent of the inverter is to supply you with enough power to operate whatever it is connected to........the 350w inverter is plenty for what you are using it for - considering the inverter will use about 15% - 20 % of the input power to operate itself, that leaves you with basically a 260w - 280w output.
You should always purchase an inverter that is rated around 20% - 25% higher than what you need....The Phantom charger with a 1.8amp input rating calculates out roughly to around 200w required for it to operate properly. Hence, leaving you with 60w-80w unused wattage which is ok since that is 30% more than what you need.
NOTE: If you are plugging the inverter into a cigarette lighter socket in your vehicle what you must consider and more to your question is......can it handle the load - check the fuse for the cigarette lighter in your vehicle (
if that is what you are using to plug the inverter into).
e.g. 10amp fuse will handle inverter load up to 120w.........15amp fuse, up to 180w.......and a 20amp fuse up to 240w. So if you have a
20amp fuse for the cigarette lighter (
again, if you are using this to plug your inverter into) you should be ok since you are only using 200w inverter load. Depending on the inverter brand you have you
might get away with a 15amp fuse.
Before you ask.....LOL......the answer is
NO....do not replace a lower amp fuse with a higher one. For example if you bumped up a 10amp fuse to a 20amp fuse - the wiring will overheat and possibly burn up!
How long can you use the vehicle battery charge for with the inverter plugged in...........?
You have to find out what the amp hours are for your
12v car battery which determines how long you can operate the inverter for before draining your vehicle battery. Of course this is dependent also on what you are using the inverter for (
load).
On average......a 12v car battery supplies around 80 amp hours, since you would use roughly 200w to power the charger that would give you roughly 4 hours of operating time (
this is without the car engine running and supplying no constant charge from the alternator to the battery). You should go online or ask you battery supplier and check the OEM for the battery you have as to actual amp hours since batteries are different from one brand to another.
Car batteries are not
"deep cycle" batteries, marine batteries are
"deep cycle" batteries and are for use where you don't need a constant recharge like you car battery does and gets while driving. We all know that once the alternator dies in our cars we don't get very far before it stops.....whereas a
"deep cycle" battery (marine) can go all day without a constant charging while you are out boating.
If you have your vehicle running while using the inverter and whatever it is powering up....that can get expensive considering gas usage and cost for same. So it might even be worth considering buying a separate deep cycle (marine) battery and having that in your trunk to use for the inverter and whatever it is connected to....this will likely work all day for you, then you just recharge it up and leave it for the next time.
EDIT: disclaimer, I am not advocating or advising application of any of the above as to being factual or accurate with regard to what an electrical or techinical specialist might offer......this is based only on my own limited knowledge of same!
