Involvement:Expert (understands the inner workings) - Ownership:more than 1 month
Works great, shows 9.6 Volts on multimeter. It works great in my alarm, in my R/C car remote controls, and with my Arduino board (it's not the DX one, I bought it before DealExtreme made it, and it's an official board)
The price : for ~ 2,50 $ in IKEA (France), you can get a 9V Alkaline.
Not suitable for projects witch use motors (although 9V batteries aren't made for that kind of projects).
Maybe a lower price ?
These are great battery, altough the price is a bit high. You must go for Alkaline if you will use them for cars and motored toys.
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