Coupling the Duracell
DR36 battery to the FT 817
The Duracell DR 36 laptop
battery can be easily find and supplies 12 volts X 4 amperes.
main advantages on this system are, the weight, size,
quick battery changing and no stress to the FT 817 power
at the middle a car fuse, soldering each blade on a printed
circuit board coinciding with the plus and minus battery
a short piece of cable from the printed circuit board
to the power connector to be pluged on the FT 817.
have used a small bargain manufactured printed circuit
board soldering the fuse blades on it.
the battery charging I have made a 0,5 amperes constant
current charger to fill the battery after 10 to 12 hours.
the upper left photo can be seen the rubber band passed
trough the hook supplied with suction cups.
on the battery five silicon glued Scotch pads , to protect
the radio and the battery against scratching , these procedure
keeps everything firmly without swinging.
the field battery changing can be performed in about 10
seconds, with no stress to the FT 817 power female connector.
AHD ALEX (Alexandre Grimberg).