MY FAVORITE EXCALIBUR

[FOMA]

Everybody dreams of a universal device which can be used both in the water and on the land, and it should be comfortable and the hand is not tired of using this instrument. Well known Excalibur can be such an instrument.

But it should be helped:
1. To do a comfortable rod because we need it not only on the land but also in the water;

2. To replace the power supply because we do not want to charge it by the battery every day;
3. To transfer all constant connections to sockets;
4. Of course it is necessary to change all coils for all cases.
In this post we will consider a device of a comfortable rod. You can do this without any special machine-tools in your kitchen on the chair.
You can use it not only for the Excalibur.

To be continued...

[FOMA]

The construction of the rod is simple. You can use it both on the land and in water. Now we will briefly say about the power supply. The power supply is a set of three Li-ion batteries, the size of each element is 26650. The capacity of each element is 5000mA. You can use it for a long time. As a fallback, there is a power supply. It consists of 10 AAA NiMH batteries. These 10 accumulators are conveniently included in the standard power supply of the metal detector. You can clearly see the design of the power supply on the submitted photo. We use the same connectors on the both power supplies. They are interchangeable. We use the same chargers on the both power supplies. You can see the scheme on the photo. You can charge any batteries on any metal detectors by this power supply. The charge current is approximately 100 mA and depends on the power of the incandescent lamp. The battery charge keeps for a long time. It depends on the capacity of the element, but only this charge does not harm the batteries of any type.
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