i have a bmw 1098 520 model brought the car to the garage as it wouldn’t start they said it was the alternator i got a new alternator now the car is still the same battery not charging when i put an battery and alternator tester on to the Battery the lights for battery are ok but the is no light showing up to say the alternator is charging the battery
any ideas

it cant be the Voltage regulator as these is built into the alternator

Think I answered your question before. Your still messing up the year. the 520 is a Europe only model. Before I open my fig fat mouth again lets get some badly needed information here. YEAR !!!!!!!!!!!!!!

And is the battery light in the dash coming on just before you start the car?

Typically with BMW’s wires are not the problem not even the battery a alternator either charges or it doesn’t.

I have a 1999 Grand Marquise. In hot weather (AC on) and more when in traffic jams after long city driving, my battery voltage drops down almost to a quarter or below of the battery voltage scale.
I have installed a new battery and a new alternator but to no vail. Battery is only getting about 13.2 volts. What could be the problem?
Thank you for your help and prompt repsonse.
Regards,
Fuad Tmeizeh

If the voltage increases back to about 14 or 14.5 when the engine is above idle, your OK. If not, go to an auto electric specialist for diagnostic. The alternator is not designed to put out max amps at idle.

I bought some generic rechargeable 3v lithium batteries on ebay for my surefire, I put them in after charging them initially and the bulb turned on for a second then went. I"m not sure if it’s blown or even if I should use these batteries again. Any ideas?
I don’t want to spend $12 on a pair of duracell 3v123a lithium batteries just to find out either, I’m not that rich.
Alice, your answer was pathetic,
the link you sent gave a saving of only
$1.02, hardly a match to my alleged "rip off".
Lithium-ion batteries CAN be used in Surefire flashlights, so you CAN be sure what I put in mine, I detailed it out pretty clearly.
Next time you go to answer a question, read it first, leave your condescending and patronising generic thoughts in your childish little head and please don’t answer any of my questions in the future.

Lithiums are not rechargeable. Lithium-ion batteries are, but that’s not what goes in a Surefire.

So, not really sure what you put in your light.

In any case, $12 for a pair of batteries is a rip off.

You can get them for half that here:

http://www.adorama.com/BYUL1231.html

I have a moultrie model d40 game camera that normally uses 6 or 8 d size batteries. They don’t last long and I was wanting to purchase a 6volt or 12volt rechargeable battery. But, the manual doesn’t say which volt to use. However the camera does have an external power plug-in port. So, which is it? 6 or 12 volt? And where can I find the cord to use with the camera?

Best would be to ask someone like Batteries Plus to build a battery pack for you that follows the voltage requirements… Might have a store near where you live… worth checking with them. ( http://www.batteriesplus.com )

probably becuz there`s a lot of people who dont know how to use one. OR most people figure if their "device" isnt working then pop some fresh ones in.

My digital cameras and my cellphone use Lithium Ion rechargeable batteries. I also have a set of four rechargeable AA NiMH batteries.

With the primary goal of preserving their battery lives, what is the proper way to use and store these batteries?

Is it always best to fully charge and then fully use/discharge them before recharging?

When not in use, is it preferable to keep them fully charged or discharged? Or does it not matter?

You’re asking one of the secrets of life. The care of re-chargeable batteries is one of those things that nobody ever does right: it goes right along with the breaking-in of an automobile engine, or the sharpening of a knife, or the salvation of the immortal soul.

But you don’t have to worry. About all the rituals you read about charging and discharging batteries were associated with the old nickel-cadmium variety. These are no longer used, much to the benefit of both the customers and the environment. They used to grow internal crystal whiskers, and generate bubbles inside, and all sorts of weirdnesses, and there was never any general agreement as to how to treat the damn things.

The new batteries–like the ones you mentioned–can just be charged and discharged however you’d like. The chargers won’t overcharge them, and you can use them partially-charged, or fully-charged.

Though there will be arguments, it doesn’t matter anymore, hooray. You’ll encounter much cherished lore on the subject, however. Don’t worry about it at all. Eventually they all die, but rechargable batteries are pretty good nowadays.

My cousin and I were debating over this last night. I unplug my laptop once it is fully charge and he said that leaving it plugged in after it is charged isn’t what damages the battery but it is charging it before the battery is low. What do you think/know? I am a college student and would like this (brand new) battery to last me for at least the next four years.

Charging it before the battery is low, is not a problem, and neither is leaving it plugged in once it has charged. It should switch over to AC power once it has charged. Rechargeable batteries can only be recharged so many times. Your best bet for keeping your battery for 4 years is to not use it that much. Use AC power when ever possible!

I am trying to solder 4 1.2V NiMH batteries together end to end to make a battery stick. What is the best way to do this? I tried melting the solder with the soldering iron on one battery and then trying to jam the other battery on real quick, but this was a horrible failure. Do i need a different tip, or solder, or any suggestions welcome.

There are special batteries made for soldering. They come with a small tab already spot-welded to each of the ends.

Sounds like you don’t have those, so stop trying. If you could get them hot enough, you’d melt the plastic separator inside the batteries and they’ll self-destruct.

There are many battery holders on the market. You can probably find one that meets your needs. Try Radio Shack or Digikey.com for lots of different models or the batteries with the solder tabs.

Im talking about the battery backups used to save games. How long will they last? I just bought a Genesis with some older RPGs Also if the games arent heavily used does that mean the batteries will last longer?

I’d just throw a guess of about 10 years out there. I’ve had games die much sooner and last longer though it really depends on what kind of battery they’re using mostly. Eventually the battery will die though but if you’re feeling brave it’s not too hard to open up a cartridge and replace the battery, they tend to use the disc like hearing aid style batteries.