Xantrex Technology 250 - Manual (Page 8)

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3.2 An Explanation of Power Ratings and
Battery Life
AC powered products are rated by how much electrical power
(in watts) they consume. Portable Power 250’s internal AC
inverter is capable of generating a maximum of 250 watts to
power AC products plugged into its AC receptacle. As an
example, a lamp with a 40 watt bulb can be operated from
Portable Power 250 for up to 3 hours when its internal battery is
fully charged.
12-volt DC auto and marine accessories are generally rated
according to how much electrical current (in amperes or
“amps”) they draw from the battery. The built-in 12-volt
fluorescent light draws less than 0.7 amps and will operate up
to 23 hours with both bulbs illuminated, or about 46 hours with
one bulb illuminated before the internal battery needs
recharging. Portable Power 250 can supply up to 12 amps from
its DC Power Socket.
Remember: The fewer watts an AC product uses, or the fewer
amps a DC accessory draws, the longer Portable Power 250 will
operate before recharging is required.
3.3 Operating AC Electrical Products
1. Ensure the internal battery is fully charged. (See Section
8 for details.)
2. Turn the AC inverter switch ON. The switch illuminates
to indicates AC power is available at the AC outlet.
3. Plug the AC product you wish to operate into the AC
outlet and switch the product ON. Portable Power 250
will operate most devices rated up to 230 watts.
4. In the event of an overload, low battery voltage, or
overheating, the AC inverter will automatically shut
down. (See Section 5.3 for details.)
5. Fully recharge the internal battery as soon as possible
after each use.