We had a customer that had a good question. For both charging and jumping I recommend using the one of the two batteries that is most accessible and let’s call it battery number #1.
 
Charging Procedure:
 
Attach the Positive lead from the charger to the Positive terminal of the number #1 battery. Then attach the Negative lead from the charger to [...]

Those of us that like to go hiking knows that a good portion of the weight we lug around is from the batteries that we use.
We all like our gadgets, from cell phones to the PSP to keep the kids quiet (relatively speaking) while we travel. I recently spoke to a law enforcement officer that [...]

The University of Michigan has come up with a novel idea. Apparently they had asked themselves “Why can’t we power our own cell-phones and other devices?” Playing with the regenerative braking systems that are in some Hybrid vehicles they came up with a knee brace that captures the kinetic energy released as we walk.
This could [...]

As our society tries to get less and less dependant on oil, we need other forms of power to be reasonable and renewable. It needs to have the power that we need when we need it, yet at the same time it can’t cost & arm and a leg. Too many body parts are being [...]

Today I’m going to complain a bit. Now I’m sure there are some brains out there working on this, however I’m in the mood to complain. I know how enamored we have become to our portable music I myself remember my Sony Walkman cassette player. Then I upgraded to the portable CD-player now I am [...]

Heliotron Energy over in Greece has been working on increasing the rather sad efficiency of Solar cells. The current efficiency rating is usually hovering around 12-14%. This however isn’t even going to come close to making a dent in our power supply needs.
Heliotron has been working hard and has actually hit a few milestones in [...]

Well you need to determine what features you want in a charger. Portability, waterproofing, built in indicators (digital or analog), short circuit protection, and the list goes on. One of the best features is de-sulphation, as it will extend the life of your battery and save you some money. Well worth the extra cost of [...]

Match the output voltages of the charger to the battery type and the manufacturer’s recommended voltage, absorption, and float charging requirements. Pay attention as a mismatch can overcharge or undercharge your battery. There are always differences as the usage of the battery is designed to handle different parameters. These set up different requirements in the [...]

Charles from Montana Reviews the Battery Tender Jr. 12 Volt Charger
In 15 degree weather, I placed it [the Battery Tender Jr.] on a dead (0 Volts) battery and left it over night. The next day it was totally charged. Other small chargers that I’ve tried have taken days not hours.
I have two Battery Tender Jrs [...]

As more and more companies realize that is just as important to condition your batteries as well as charge them, we will see chargers taking advantage of this important feature to extend the life and usage of our precious laptops.
NewerTech has developed a charger/conditioner for your PowerBook®, iBook®, MacBook®, and MacBook Pro batteries. Their first [...]