Installation Instructions

OM-E 2072-09287-00
A-1
APPENDIX A
USING BATTERY CHARGER, FRN8570B
A-1. PURPOSE AND USE
FRN8570B is an AC-powered portable battery charger designed to charge 14.4V Lithium-Ion
rechargeable battery packs of the type used by Micom Pathfinder (FRN8577).
FRN8570B is simple to operate and does not require operator attendance during operation, yet it
provides advanced features, such as fully automatic charging and automatic stopping after battery pack
charging is completed. FRN8570B does not have any controls, as its operation is fully automatic. A
single indicator displays the operating state.
The FRN8570B is intended for use in rooms, shelters, etc. Do not expose the FRN8570B to direct sun
radiation or excessive temperatures, rain, snow, or high humidity. Keep charger battery contacts clean,
and avoid accidental short-circuits by powering the FRN8570B on only after a battery is connected.
A-2. FRN8570B DESCRIPTION
FRN8570B comprises three components:
• AC/DC converter, which provides
24 VDC for the charger unit. The
AC/DC converter has an integral DC
output cable terminated in a 2.5 mm
round plug, for connection to the
charger unit.
• AC power cable for the AC/DC
converter.
• Charger unit, powered by 24 VDC
provided by the AC/DC converter. The
charger has a short charging cable
terminated in a two-pin connector plug
with a polarizer pin that matches the
FRN8577 charging connector (pin
polarity is marked next to each pin).
A-3. FUNCTIONAL DESCRIPTION
The FRN8570B is powered from 100 to 240 VAC, 50/60 Hz. FRN8570B operation is fully automatic,
to ensure full charging of batteries to their rated capacity, and to prolong the operational life of
batteries by providing optimum charging conditions.