4/6/2017, last updated
A few words about the
chargers are in order:|
above shows how the charger is
mounted in the back of the cab area.
The charger is mounted upside down
so the cables can be routed to the
batteries easily. The 115V
input cable is stored in the cab
when not in use.
The image on
the right shows the charger
right side up. It has a 10 amp
capability and charges each battery
independently --- 5 amp capability
each battery. I
leave the charger connected
permanently. It can be plugged
in all the time and the
batteries just float when fully
important to charge each battery
independently. I don't think
this model is available anymore.
Some newer models show the status of each
battery on the charger.
This photo shows the installed
batteries. The negative terminals are
at the back (left). A charger
lead goes to each battery terminal.
There is a fuse in each charger lead.
The front (+) terminal of the rear
battery is connected to the rear
(-) terminal of the front battery. The rear
terminal of the rear battery is the zero
voltage reference. + 12 volts is taken
from the middle terminals and + 24 volts
from the front terminal of the front
battery. The +12 volt and + 24 Volt
leads go to circuit breakers in the upper
This is a close-up of the upper right
corner with the 20 amp breaker for 12 volts
and 90 amp for 24 volts. The
tall black brass hex nut (1/4"-20)
in the lower left secures
the battery hold down bar and is a stand-off
for the battery cover.
This shows the battery cover in
place. The negative terminal of the rear
battery ( zero voltage terminal) is visible
on the left. As mentioned elsewhere, 24
volts is not a shock hazard but the
tremendous energy stored in the batteries
can cause violent reaction if a tool is
dropped across the terminals.
comes with a charger powered from
115 volts with output of 12 volts at 1 amp.
A concern is that I forget to charge
the handset so I provided 12 volts
from one of the batteries.
The plug is of the type shown above.
I wired it directly to the lower
battery and put an in-line 2 amp
fuse in series with the + 12 volt
lead. The handset can be
powered via this cord if it's
batteries are discharged.
The handset can also charged via
this plug instead of the AC charger
but can drain the main battery if
left for long periods unless the
main charger is powered.