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Chapter 7: Peripheral Devices & Accessories
Powered Vehicle Cradle Installation
Warrington Hand-Held Computer User Manual
199
All other installation requirements outlined in this document should also be followed for 
High Voltage vehicles to insure safe installation and operation of the powered cradle.
7.9.6
Powered Vehicle Cradle Installation
The powered cradle is designed to allow the Warrington to be powered by a vehicle battery. 
The battery installed in the hand-held is also recharged by the vehicle battery. This option 
accepts DC power sources ranging from 9 to 20V, with optional pre-regulator. 
The vehicle cradle can be ordered with the powered cradle option installed.
Applying a voltage greater than that specified or reversing or reversing polarity may result 
in permanent damage to the cradle power option and will void the product warranty.
7.9.6.1 Wiring Vehicle Power To The Cradle
A 1.8 meter (6 foot) extension power cable (PN 13985) is supplied with your powered 
vehicle cradle.   This cable should be wired to a filtered, fused (maximum 10A) accessory 
supply on the vehicle.   The power cradle draws no more than 8A (less if the accessory 
supply is greater than 12V). Any additional wiring, connectors or disconnects used should 
be rated for at least 10A. 
The red lead of the power cable attaches to the positive vehicle supply. The black lead con-
nects to the negative supply–this should be connected to a proper terminal block and not to 
the vehicle body. The power cradle is fully isolated and can be used with both negative and 
positive chassis vehicles.
You may have the option of connecting power before or after the ‘key’ switch. It is prefera-
ble to wire the power cradle after the key switch–that is, it cannot be turned on without the 
key on. However, if the operator switches the key off repeatedly for long periods during a 
shift, it may make more sense to wire the cradle before the switch.
Keep in mind that the Warrington will continue to operate with or without vehicle power as 
long as its battery has sufficient charge.
If an unfused power source must be used, a fuse assembly (PN 19440) must be added to the 
extension power cable (the fuse and instructions are supplied with the cable). Use only a 
10A slow blow UL approved fuse in the fuse assembly.
Preliminary Draft