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Make a portable power brick with plenty of juice! Use Alkaline AA's for a 12V 3000-4000mAh power sup..
This battery holder can hold 6 AA battery which can make 7.2 V rechargeable battery pack..
This battery holder can hold 3 AA batteries which provides 3.6V rechargeable battery pack with NiMH ..
Make a portable power brick with plenty of juice! Use Alkaline AA's for a 9V 3000-4000mAh power supp..
This is a compact one cell 18650 battery holder. Usually, people think that 18650 batteries are for ..