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anne-francoise.pele
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re: Selecting the right battery
anne-francoise.pele   7/16/2012 3:25:01 PM
I invite you all to look for Part 2 next week. It will explain how to implement a battery charger using Li-Ion technology as the example.

anne-francoise.pele
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re: Selecting the right battery
anne-francoise.pele   7/16/2012 3:25:01 PM
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Part Two of this two-part article is now available here: http://www.eetimes.com/design/smart-energy-design/4376071/Implementing-battery-charger-using-Li-ion?Ecosystem=smart-energy-design

Mike K.
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re: Selecting the right battery
Mike K.   7/9/2012 7:20:42 PM
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Hah! Who said solar anything is "green"? Most solar cells use Cd in the elements too. They lobbied for, and received, an exemption from the scope of EU RoHS.

Hughston
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re: Selecting the right battery
Hughston   7/9/2012 3:38:55 PM
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I was looking at my neighbor's outdoor solar lights last night and I was surprised to see NiCad batteries in what is supposed to be a green product. I assume they have the cheapest charging method, which would be trickle charge.

Nexing
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re: Selecting the right battery
Nexing   7/5/2012 3:30:10 AM
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http://blog.bestlaptopbattery.co.uk/876/ Look at the inverse correlation between the level of Depth Discharge and discharging cycles at that article. Besides, part II of this article finally did not answered most questions left unresolved here. This link http://blog.bestlaptopbattery.co.uk/ might prove to be more useful than what we are commenting into.

Tim Foo
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re: Selecting the right battery
Tim Foo   6/27/2012 1:41:20 PM
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The focus of the aricle is on recharable batteries. There is a whole peletora of non-rechable batteries that are available off-the shelf. These includes: Carbon Zinc 1.5V Alkaline Manganese 1.5V Lithium Iron Disulphide 1.5V, long shelf life, high power density Lithium Manganese 3V, long shelf life, high power density Lithium Thionyl Chloride 3.6V, long shelf life, very high power density Silver Oxide 1.5V, typically button cells only

mcjw
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re: Selecting the right battery
mcjw   6/27/2012 12:29:02 AM
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I was expecting to see what the difference is between 1000-cycle Li-ion and 300-cycle Li-ion, in cost, technology, and design. Since many products have internal batteries, this is important.

Mike K.
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re: Selecting the right battery
Mike K.   6/25/2012 7:32:22 PM
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As mentioned above there are regulatory requirements to consider when selecting a battery technology. There are issues with batteries based on cadmium, lead, and lithium (and mercury, of course) in a variety of markets, not just the EU. Some are environmental, some are transport-related. If you're going to do an article about "Selecting the right battery" in 2012, consideration of environmental performance, recyclability, potential shipping constraints, and legality are of critical importance.

Hughston
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re: Selecting the right battery
Hughston   6/21/2012 4:57:10 PM
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Why do you leave that much reserve capacity in the battery? Is it to extend battery life? Is it because the internal impedance goes up too much? I remember when the voltage gets down near 3V, the battery is going fast.

Hughston
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re: Selecting the right battery
Hughston   6/21/2012 4:52:12 PM
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Here are a few other good characteristics of lithium ion batteries: flat discharge curve, typical voltage just about right to linear regulate for logic, and it's easy to detect charge termination. Low self discharge is important for many low power applications. You don't have to use CC/CV charge methods for these batteries. You can pulse charge them.

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