
10
3. As the AC product is operated, you can check the le el
of the battery as detailed in Section 4.1. This will gi e
you an idea of how much time remains until the battery
needs recharging.
4. When the battery becomes nearly discharged, or
empty, a low oltage warning will sound. This will gi e
you time to shut down a computer, for example. If this
warning is ignored, the in erter will switch off
automatically a few minutes later to pre ent battery
damage. (See Section 5.3 for full details.)
5. Fully recharge the internal battery as soon as possible
after each use. (See Section 8.)
5.3 A tomatic Overload, Overheating, and Low
Battery Protection
Portable Power 250s in erter has built-in protection against
output o erload and from o erheating. If an AC product rated
higher than 230 watts (or which draws excessi e surge power at
start up) is connected, or if the in erter exceeds a safe
temperature, power to the AC outlet will automatically shut off.
If an o er temperature condition caused the shut down, the
audio alarm will sound. To reset, unplug the product, turn off
the AC Power ON/OFF Switch, and let the in erter cool.
If an o erload condition caused the shut down, unplug the
product and confirm that the product power requirement is 230
watts or less before attempting to restart the product. In the
case of an extreme o erload, the 30-amp external fuse located
below the AC outlet will open. It will be necessary to replace
this fuse in order for power to flow to the AC outlet. Replace
only with a 30 A, 32 Vdc, automoti e blade type fuse which is
a ailable at many auto parts stores.
If the battery is allowed to discharge excessi ely, damage may
occur. To pre ent this, an audio warning alerts you when the
internal battery is nearly discharged (10.7 olts). If this warning
is ignored, the in erter will automatically switch off when the
battery reaches empty (10.0 olts). Promptly recharge the
battery. (See Section 8.)