1. The basic of NiMH batteries

    NiMH stands for nickel-metal hydride, which is one of the most successful batteries in history. It uses the same nickel-hydroxide positive electrode and KOH electrolyte as the Nickel-Cadmium battery but uses hydrogen gas to replace the cadmium in the negative electrode. The nickel-hydrogen battery is mostly used in low-orbit satellites, which charge and discharge the batteries on every pass around the earth, and requires a long cycle-life battery. Nickel-hydrogen cells have a cycle life of tens of thousands of cycles.

    How to charge NiMH batteries

    There are a number of charging methods that can be used with nickel-metal hydride batteries, although sometimes this isn't as straightforward as other types of cell or batteries. NiMH cells, similar to NiCds require charging with a constant current with the rate of charge typically specified on the case of the cell, with this rate not to be exceeded. Within the boundary of constant current charging, there are a number of techniques

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  2. Have you been sold counterfeit batteries? (NiMH)

    Have you been sold counterfeit rechargeable batteries?  How can you know?

    You will find that most counterfeit batteries are sold by sellers who only supply AA and AAA batteries and not packs made up for model use.  The reason for this is that model control users have ways of testing the capacity of their batteries were as the average family battery users does not.  This means that users often think that rechargeable batteries are very powerful but they don't last long.  This isn't the case.

    There is an easy way to find out if you have been sold a counterfeit battery.  There is a relationship between maximum capacity (mAh) and minimum weight that they can be at to hold that capacity.

    1. Light weight cells with high capacity on them are counterfeit.

    2. AA cell 3000 mAh and above are counterfeit.

    3. AAA cell 1200 mAh and above are counterfeit.


    We tested some cells that you can purchase

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