Become defective batteries very quickly

The batteries quickly become either defective or lost their load current. I bought subsequently other batteries of the same brand that know the same fate !!
The number of charge was of course well below the maximum number mentioned (no more than 20 charging doing). The use was made with the following products (GPS hiking, bicycle lights halogen lamp, remote controlled car children)
=> Product avoid (that recently dailleurs confirms that choosing an article in March 2013)