IEC 61951 PDF

Second edition. This English-language version is derived from the original bilingual publication by leaving out all French-language pages. This part of IEC specifies marking, designation, dimensions, tests and requirements for portable sealed nickel-cadmium small prismatic, cylindrical and . IEC Standard N° IEC & A 1. Nickel-Metal Hydride: cylindrical and button cells. IEC Standard N° – IEC

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The first IEC standards for battery sizes were issued in I come up with a battery that has higher capacity, but ice the RC crowd tests it the performance is not up to what is expected. The letters and numbers in the code indicate the number of cells, cell chemistry, 69151, dimensions, the number of parallel paths in the assembled battery and any modifying letters deemed necessary.

If over charging is not an issue at those small Ampereges, then why don’t we iiec just always do a standard charge, and get the full bucket load of charge into our cells? A single-cell round alkaline battery, 8. The time now is Proceed to Checkout Continue Shopping. Originally Posted by SilverFox. The price for this convenience is a slight reduction in cycle life.

Develop, test and integrate batteries according to the standards

Need more than one copy? Is the “standard charge” a “measurement only” type of thing, or is it a true and tested good way of charging if time is not an issue?

Flat cells, used as components of multi-cell batteries, have an F prefix and a series of numbers to identify sizes. This edition includes the following significant technical changes with respect to the previous edition: Please help improve this article by adding citations to reliable sources.


The letter system was introduced in the edition of the jec, with letters A through J assigned approximately in order of increasing cell volume, for cells typically manufactured at that time. Standardized size codes for round batteries which do not follow the current nomenclature but have been retained for ease of use are given by a one or two digit number following the R.

Common round cell sizes are:.

They will be designated as: Front Page What’s New? The Redline version is eic an official IEC Standard, only the current version of the standard is to be considered the official document.

Since at the time there were only carbon-zinc cells, no suffix letters or other notation were required. The best way to charge those cells would be with a charger that has peak detection.

Standard charge of NiMH, IEC

This standard is not included in any packages. That standard charge is when you have what I refer iwc as a dummy charger, that is one that will continuously put current into the battery for as long as the battery is plugged in.

Sizes given as 4 or more digits indicate the diameter of the battery and the overall height. These categories, however, are not identified in the IEC battery nomenclature. You may delete a document from your Alert Profile at any time.

Prior to Octoberround cells were designated with a sequential numeric size code ranging from R06 through to R70, for example Iecc is the size of a “D” cell or ANSI”13″ size.


Inmercury batteries were included in the standard. The engineers figure out the best way to get the most capacity into the battery and everyone agrees. An appended letter “W” states that this battery complies with all the requirements of the IEC standard for watch batteries, such as dimensional tolerance, chemical leakage, and test methods. Since the cost of replacement batteries is low, this seems like a worthwhile trade off. Barak Electrochemical power sources: The people that use batteries appreciate the standard, but have discovered that different charging methods favor the performance under differing use patterns.

I use the standard charge to check the health of my batteries. A multi-section battery two or more voltages from the same package will have a multi-section designation. Please first verify your email before subscribing to oec. The International Electrotechnical Commission IEC was established in France in and co-ordinates development of standards for a wide range of electrical products. Use dmy dates from July Articles needing additional references from October All articles needing additional references Commons category link is on Wikidata Commons category link is on Wikidata using P The attached image has been modified to make it somewhat easier to understand the IEC standardized endurance test procedure.

We have no document history for this standard. From Wikipedia, the free encyclopedia. For flat cells the diameter code is given as the diameter of a circle circumscribed around the whole cell’s area.