It is not necessary! What type of the rechargeable bettery that you use is? |
number 5 or aa. I charged 2 duracell AA battery without using them. After a month I have to charge them again when I want to use them. If I buy non-rechargeable battery and use it after a year, it would have no problem. |
I suggest you to use NI MH rechargeable battery. The price is along $6-12 for 4 AA batteries. |
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