Why does the battery in my car drain while driving and the alternator and battery has tested good?


Posted May 31st, 2010 by admin 7 Comments »
battery
Gabby asked:


We have put a charger on the car and the charge holds while the car is off. But when driving the car the battery drains in less than an hour. The alternator has been tested and shows to be good. The new battery has been tested and shows to be good. The head connectors for the battery have been changed. The problem is still occurring. What could the problem be?

How to use car battery or any other battery to lighten the tubelight?


Posted February 1st, 2010 by admin 2 Comments »
battery
new gEN asked:


How to use car battery or any other battery to lighten the tubelight at home?

Or is there any other means to lighten the tube light using battery?

Do electric generators charge the battery used to start the engine?


Posted January 18th, 2010 by admin 2 Comments »
battery
calories asked:


The battery on my generator just went dead so I hooked the battery charger onto it. I’m not sure if the battery is fully charged yet. Will the generator charge the battery up the rest of the way if I have enough charge to get the engine started?? I didn’t know if the generator worked similarly to a car charging the battery with the alternator. Thanks for your help!!

Can I charge car battery using UPS?


Posted October 27th, 2009 by admin 3 Comments »
battery backup
Future asked:


Can I charge my Maruti 800 battery using a 750 VA UPS that I am currently using for my computer backup?

Is a car battery safe to store and use in an attic?


Posted September 21st, 2009 by admin 3 Comments »
battery backup
Marcus asked:


I’d like to install a 12v car battery as a backup in my attic for my garage door opener and driveway flood lights. What safety issues should I be concerned about? is there a better battery option to use? I’m guessing hydrogen leaking into my attic is dangerous and possible, is this a problem or would it disperse enough to be harmless?

when i start my car the battery meter is low but after i rev it the battery meter goes back up.do you think?


Posted August 9th, 2009 by admin 2 Comments »
battery back up
steelercity36 asked:


After i rev my car after its started my battery meter is low, but after i rev my engine, my battery meter goes up. do you think i just need a new battery?

Increase UPS backup time?


Posted March 19th, 2009 by admin 1 Comment »
battery backup
pn_renju asked:


I have an old UPS rated around 500VA. It uses a 12V 7.5Ah sealed lead acid battery.? I have a 12V 250Ah car battery also. Can I replace my UPS battery with car battery. I’ve heared that it may cause come problem with the charger. If I can not replace the battery can I use the car battery by charging externally?. This is for using the same as an inverter at my home(Any explanation, details, links or schematics wolud be appreciated).

Is it safe to use a car outlet inverter plugged directly into a car (12v) battery?


Posted March 13th, 2009 by admin 2 Comments »
backup battery
sableisland asked:


I was wondering if you can do this safely, because I think that it could be useful as a small backup power supply. Would this work with any other batteries? Thanks.

I need wire dirgram to hook up a Deep Cycle battery to a amp in the back of my car?


Posted January 27th, 2009 by admin 1 Comment »
battery back up
Alan H asked:


I just bought a Deep cycle battery for my amp, and I dont know how to hook it up. I had it running off the car’s battery but it was taking to much power so I bought a marine battery and I dont know what to hook what up to it.

I want a backup car battery. How can I build it. Or Where can I find it?


Posted January 13th, 2009 by admin 4 Comments »
battery backup
slice39 asked:


I’m thinking I can buy parts at radioshack and just connect the cigarette lighter to a spare battery in the back. Not sure how the fuses will work or if I need a resistor maybe.