Sears - DieHard Platinum 6V/12V Battery Charger and Maintainer - $23.99 (Reg.$45) + Free shipping

Four rep points for any and all that can help ...
What are pros and cons of this charger versus this other DieHard charger that was a FP deal a few weeks ago (for $30) :

http://www.sears.com/shc/s/p_1015...Ready&eml=

Thanks

Four rep points for any and all that can help ...
What are pros and cons of this charger versus this other DieHard charger that was a FP deal a few weeks ago (for $30) :

http://www.sears.com/shc/s/p_1015...Ready&eml=

Thanks

I don't know exactly what your needs/budget are, but for instant cranking power, this is pretty much the gold standard:

http://www.amazon.com/Quick-Cable...002YORJTK/

(I sell used cars).
That will start three or four completely dead vehicles of any size, in succession. It recharges quickly, and if left unused, will hold its charge for at least three weeks (I never seem to be able to make it longer than that without having to jump something ). If you live near an Interstate Battery outlet, they may have it cheaper than Amazon (they sometimes have coupons on their website).

Once you have the vehicle started, the alternator will charge the battery as the engine runs. Once you've driven for a while, the car should be able to start on its own (if not there may be a problem with the alternator, or the battery may be completely shot). If the battery charges from driving, but is dead again soon after, there may be a drain in the electrical system, or, again, the battery may be on its way to being dead. Hope this is of some use.

I have a similar charger as yours AND I just bought this one.

The difference is that the one you have can jump start a car, it can do a high current charge (less time) or a lower current charge.

The one on sale is basically an intelligent battery tender that tells you the capacity of the battery and will try to charge and/or maintain your battery. It cannot jump or do a high current charge.

I have a dumb battery tender and I got this one not because it can charge a battery (my other charger charges faster), but because it will monitor your battery and tell you the % from full.

I have eight cars so a few cars do not get driven often, if at all, for the year.

Gary

What do you think and comparing with http://www.sears.com/shc/s/p_1015...871222000P $40.49?

The link you show is a much more versatile unit. It will trickle charge (2 amps), Fast Charge (10 amps) and Jump Start The Car (50 amps). I would go for that one.
The OP link is to a trickle charge device only. It does have a benefit not on the other one - it has a "maintainer" feature, so theoretically you could leave it on your battery indefinitely. (boat battery left unused all winter in Minnesota, for example)
Buy the OP link if you are specifically looking for Trickle and/or Maintainer only. Buy the other link if you want the versatility of all choices except "Maintainer". (Since i don't trust the "maintainer" idea, i vote for the 10/2/50 charger!)

Hi,
Can someone recommend me a battery charger for BMW? The battery is completely dead. Do I need to charge directly or through the terminal under the bonnet area?

IMO these types of products have very little use. This is essentially a glorified trickle charger which is good for maintaining an infrequently used piece of equipment (moped, motorcycle, lawn tractor, vintage automobile), but not very practical for what most people need. The larger quick-starter types can do what this charger does but also offer the ability to quickly discharge and start a dead car AWAY FROM AN OUTLET.

A lot of people find their cars dead away from home (left lights on in parking lot, at airport, restaurant, etc.), and in these cases this product is worthless. Something like this would be much better (but obviously more expensive):

http://www.amazon.com/Schumacher-...sbs_auto_3

Honestly either get one of these or keep a pair of jumper cables in your car. This deal product is not for most people.

A bit off topic but please realize this CANNOT be used for cleaning metal by electrolysis (cast iron, etc.). This is a very cool way to restore antiques but the micro-circuitry that controls the voltage will not allow this to work in this purpose. I only mention this because I am in the process of doing this type of cleaning and had to purchase a large manual charger...

HTH