My mini-TFT has 6 watts power at 12 volts. Couch with my invoice, I correct that I run hourly 0.5 Ah Battery capacity need? Or have I given the wrong formula is used or how you calculate it?
Thank you in advance ever and greeting
Arno
Antwort von Videofactory:
Correct: Voltage * Current = Power (Migrated so:) Power / voltage = amperage thus 6 W / 12 V = 0.5 A
Now it comes naturally to your battery, how long you can operate the monitor.
As far as I know, but loses the Battery with the s.Spannung time when you notice the lights simply because they are darker and with time the color changes, what happens with your TFT, I do not know I would have a voltmeter ? the Battery and then replace and recharge time.
Gruß, Alex.
Antwort von tommyb:
Modern Lithium ion hold their voltage fairly constant. That means they usually have a higher stress at maximum load (14V instead of 12V) and can go down to about 11.5 V (or less). At a certain level, but they lose their power very rapidly.
If a lamp s.einem LiIon Battery operated, then they SCARCELY noticeably darker when the Battery is just before the collapse.
A monitor in turn also has a minimum voltage it needs to work. This can eg be 9V. More detailed information is usually in the manual.
@ Thread creator The accounts of Alex is correct. I personally always constructed in Wh (watt hours), then you have to convert to amps and other spare.
Your monitor consumes exactly 6 watts per hour, are thus 6Wh at 12V. You need a Battery of 12V rausgeben can (such as a prof. NP1-Style Battery or Battery for RC cars of the bay).
A Battery with 12V and 4A is purely arithmetically 48Wh. Your monitor would thus run as 8 hours (approximately).
Antwort von ArnAuge:
Thank you for the detailed answers!
I am planning a remote-head with 12Volt power supply and the control unit is equal to the possibly synonymous TFT integrated. What speaks against using a 12V Lead-- except that it has weight?
Antwort von tommyb:
No, because there is nothing against except the weight;)
