#1: Can't understand why my battery has gone flat again :( Author: karimali831, Location: EnglandPosted: Fri Jul 22, 2011 2:08 pm ---- After returning to my car, I turned on the stereo then locked the doors and noticed the stereo turned off and on again. I though, Oh s**t... here we go again and *click click click* when I attempt to run the engine.
I have noticed it has occurred twice while using this 75w inverter to charge my laptop:
my second question is, when I charge the laptop via the inverter while engine is on, smoke starts to show up seconds later but I have had no problems charging it for an hour while engine was off... I was told I can use the inverter for charging laptops anyway...
any thoughts on this please?
#2: Re: Can't understand why my battery has gone flat again :( Author: Lee, Location: EnglandPosted: Fri Jul 22, 2011 2:10 pm ---- 75watts will be the MAX. Whats the constant?
#3: Re: Can't understand why my battery has gone flat again :( Author: karimali831, Location: EnglandPosted: Fri Jul 22, 2011 2:16 pm ---- does that mean peak power? I can only provide you the details from the link, that's all I know about it.
#4: Re: Can't understand why my battery has gone flat again :( Author: Lee, Location: EnglandPosted: Fri Jul 22, 2011 2:17 pm ---- You will have max/peak and then constant/rms
For example it might be 500 max, but only 150 rms
#5: Re: Can't understand why my battery has gone flat again :( Author: karimali831, Location: EnglandPosted: Fri Jul 22, 2011 2:22 pm ---- That I do not know but obviously will avoid it from now on.
If the answer is I need a higher output watts inverter then it's fine.
#6: Re: Can't understand why my battery has gone flat again :( Author: Lee, Location: EnglandPosted: Fri Jul 22, 2011 2:25 pm ---- Well you'd have to check the RMS, and the wattage of your laptop
#7: Re: Can't understand why my battery has gone flat again :( Author: karimali831, Location: EnglandPosted: Fri Jul 22, 2011 2:40 pm ---- Yes will get this checked out, thanks for help!
#8: Re: Can't understand why my battery has gone flat again :( Author: karimali831, Location: EnglandPosted: Fri Jul 22, 2011 6:26 pm ---- I thought a battery could last up to 6 hours when engine is off!
I used/charged laptop 1-2 hours while engine was off... at least I know now.
Oopz!
#9: Re: Can't understand why my battery has gone flat again :( Author: Ali_H, Location: Chichester, SussexPosted: Sat Jul 23, 2011 4:28 am ---- It depends what you're running, I never charge anything when the engine is off, or run the stereo for that matter.
#10: Re: Can't understand why my battery has gone flat again :( Author: sillyhilly, Location: The Mean Streets of CoventryPosted: Sat Jul 23, 2011 4:42 am ---- Hang on, it's doing it only when you charge your laptop and you see smoke?! From where?! Am I getting the wrong end of the stick here?
#11: Re: Can't understand why my battery has gone flat again :( Author: deanparkr, Location: United KingdomPosted: Sat Jul 23, 2011 6:02 am ----
sillyhilly wrote:
Hang on, it's doing it only when you charge your laptop and you see smoke?! From where?! Am I getting the wrong end of the stick here?
I am also curious of the smokes location!
#12: Re: Can't understand why my battery has gone flat again :( Author: karimali831, Location: EnglandPosted: Sun Jul 24, 2011 1:14 pm ---- The smoke is coming directly off the AC car cigarette adaptor of course
It overheats too much when engine is on.
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