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Q. I don't understand the difference between Ni-Cd or Ni-MH batteries and how to use them.    Can you explain the different characteristics ?

A.

Both Ni-Cd and Ni-MH batteries are rechargeable and reusable. Recently Ni-MH batteries have become more commonly used due to their larger capacity. 1) Managing the battery while charging 2) Differences in discharging characteristics 1) Managing the battery while charging It is very important not to overcharge the battery when charging. When quick charging, Ni-Cd batteries and Ni-MH batteries require different settings. Please use a charger specified for the type of battery used. (Some chargers can switch between the different settings needed for each battery type and automatically find the optimal charging mode for the battery). 2) Differences in discharging characteristics Ni-Cd batteries have a memory effect that may result in a temporary drop in capacity. Try not to recharge the battery until it has been completely discharged. Using a discharger can also be effective. Ni-MH batteries generally do not have a memory effect however, variations in battery capacity may be noticed if several batteries are used in sequence. A battery discharger can be used to minimize this variation. However, discharging a Ni-MH battery too much can affect the battery's ability to recharge, so please take care not to discharge too much.