Справочник Пользователя для Trimble Outdoors SPSX51

3     Batteries and Power

30     SPSx51 Modular GPS Receivers User Guide

The receiver has an internal Lithium-ion battery. The internal battery will only charge 
from an external power source that delivers more than 15 volts, for example, an AC 
power adaptor. The receiver is supplied with a mains power supply unit that recharges 
the battery inside the receiver when it is connected through the adaptor to the modem 
port or the Lemo port. When you use the receiver on large projects, from a permanent 
or semi-permanent base station location in a site trailer, Trimble recommends that 
you use this power supply at all times to keep the internal battery charged. This 
provides an uninterrupted power supply and will keep the site operational for more 
than 10 hours after a power failure.

Keep all batteries on continuous charge when not in use. You can keep batteries on 
charge indefinitely without damage to the receiver or to the batteries.

The internal Lithium-ion battery should be removed only at an authorized Trimble 
Service Center. If the battery is removed at an unauthorized service center, the 
remaining warranty on the product will be void.