Dave “Battman” attempts to help a customer solve a battery charging problem:
I received your battery yesterday from UPS and noted that the open circuit voltage was 11.2 volts. This is important becauseit tells me that this particular battery is probably “good” but just 100% electrically discharged.
 
A “good” fully charged battery has an open circuit voltage [...]

A customer called up to express his joy at receiving his new wheel chair batteries. He was so happy with the performance that he felt he needed to call us to tell of his experience.
We have three grade levels of batteries for wheelchairs and this particular guy purchased our top of the line “Chairman” brand [...]

A very good customer of ours called me today to discuss buying a new battery for his 1100cc BMW motorcycle. Five years ago he bought a Panasonic battery from us for this same BMW motorcycle and it was still working but he was occasionally experiencing some difficulty starting the bike.
He wanted a battery with higher [...]

Granted this is a question we hear mostly in the winter, it is however a question we get asked from time to time.
In a partially discharged state, the electrolyte in a lead acid battery may freeze. At a 40% state of charge, electrolyte will freeze if the temperature reaches approximately 16.0°F (8.9°C).
The freezing temperature of [...]

Now we all know that there is a time that the battery in your device will have gone through enough charge/discharge cycles that it decides to not play anymore and you need to replace it. There are ways you can tell that your battery just won’t last much longer. Such as when the device lasts [...]

Every once in a while we get questions from our customers asking to define some of the terms that they find on their battery. So here is a short list of some of the more common terms and their definitions.
Volt – This is a measure of electrical potential. The volt is named after Alessandro Volta [...]

If you need your battery to supply longer runtime you can hook batteries in “parallel”.
In order to do this you connect the positive terminal of the first battery to the positive terminal of the second battery, the positive terminal of the second is connected to the positive of the third, etc.
The negative terminal of the [...]

Although many people know how to do this, we do get this question from time to time. In order to set up a “series” of batteries, the positive terminal of the first battery is connected to the negative terminal of the second battery; the positive terminal of the second is connected to the negative of [...]

How long will my battery last for, This is probably one of the most common questions we receive. Unfortunately, it is also one of the hardest to answer. Battery life has so many variables to consider including: how batteries are used, how they are maintained and charged, temperature, and a plethora of other factors. Anyone living where the heat [...]

As fuel continues to rise and costs spiral upwards, it’s just a natural thing for people to start looking towards ways to cut costs. As I’ve mentioned before there are several electric cars that are beginning to pop up on the market.
The Tesla Roadster® is already being delivered to customers in California. Zap Electric has [...]