Solar Controller Kit

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Solar Controller Kit

Don Brown-4
Hi

There seems to be some confusion about my two controller kits

The High power controller will work fine with a small panel. The kits are
identical
except for the blocking diode and power FET. The low power uses a 6 amp FET
and a 3 amp diode while the high power uses a 75 amp FET and two 8 amp
diodes. You can also add a second 3 amp diode to the low power kit to
increase
the power to about 70 watts. If you think you may go big at some time I
would suggest the high power kit.

I have used the high power controller with a 110 amp hour gel cell battery
and 150 watts of solar panels as well as a 2.6 amp hour battery and a 3 watt
solar panel and it works great with either.

The low power kit is less expensive and is fine for small panels. A 3-5 watt
panel and a small SLA battery of 2-7 amp hours works fine for a K1 or KX1. A
QRP K2 would need a 10-15 watt panel with the same battery.

A K2/100 would need a 35 to 100 amp hour battery and 80 to 100 watt panel.

All of this this explained in the documentation and application notes that I
supply with the kit.

Thanks

Don Brown
KD5NDB

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