Small capacity internal battery - one of the main drawbacks in general, very good cars Casio BE-300 Pocket Manager. We already wrote about some ways to "extend her life" and one of these methods, you will recall, was an external charger for batteries. Soon these "boxes" for sale in MakTsentr, but so far why not make this device yourself? Especially because it is a snap. The easiest option in the assembly generally takes less than 10 minutes. Slightly more complicated is useful to you, if you intend to use nickel-cadmium batteries. They are the cheapest, but most likely to light up when closed. So what we need. Pin DC power diameter of 1.7 mm, and a box of four batteries with a lid and switch, fuse 1 amp. All this is easy to get on the radio market, or in the appropriate store. In addition, you will need some wire (good fit wire from the headphones, bifurcated into two halves - it is flexible). And of course the soldering iron and the battery yourself (this can be battery powered) such as AA (the usual finger). Proceed.
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Remove the lid boxes for the batteries, unscrew the screw that holds the battery cover switch inside the box. If necessary, cut through the plastic joints and remove the battery cover switch.
Under the hood there are two wires (usually black and red). Pull them with tweezers, and then remove the soldering iron from the switch. Wire from the "plus" contact (usually red) better to pull out of the box, so as not to melt it (here, however, it all depends on what will fall box for batteries).
Join the fuse polampera the switch. It must be soldered to the negative leg, where there was (if you have the same type of boxes) black cord.
Solder the new cord to the free end of the fuse to the positive battery terminals. Pass the wire through the hole in the hull and tighten knot.
Replace the battery cover switch, fasten the bolt and slightly oplavte around the edges for strength.
Solder the free end of the wire pin.Came out here the following scheme:
and now this box:
Practice shows that when using alkaline batteries life expectancy "Beshka" uvelichivatsya approximately two times, and slightly less than prolong her life nickel-cadmium batteries. So that life is worth trying. The authors, translation:
