Neilsen CAR2K, Instruction Manual, Page: 14 / 24

some exceptions to brief operating times are lamps, TVs and computers.
Important: The power inverter must be connected only to batteries with a normal
output voltage of 12 volts when you use a 12V inverter. The unit will not operate
from a 6 volt battery, and will sustain permanent damage if connected to a 24 volt
battery.
Caution: Loose connectors may cause overheated wires and melted insulation.
Check to make sure you have not reversed the polarity. Reverse polarity
connection will result in a blown fuse and may cause permanent damage to the
inverter.
9.2. The calculation of the battery’s back up time
The battery’s back up time depends on the battery capacity (Ah) and your
appliances power (Watt)
The method to calculate the backup time:
Battery capacity (Ah) * Input voltage (Volt)/loads power (Watt)
For example:
Battery capacity = 150Ah
Input voltage = 12Volt
Loading power = 600Watt
So:
(150Ah*12V)/600Watt=3 hours
Note: the time calculated by this way is a theory value; the actual using time may
shorter than this value.
9.3. Recharging Batteries
If possible, recharge your batteries when they about 50% discharged or earlier.
This gives the batteries a much longer life cycle than recharging when they are
deeply discharged.
Our inverter has a battery low voltage shutdown around 10Vdc.With moderate to
heavy loads, this will protect against over-discharging the battery. if the inverter is
running only light loads it is advisable to recharge before the inverter low voltage
shutdown point is reached.
For more information on maintaining batteries, consult your battery’s
manufacturer.
For information about our battery chargers, please contact us.
9.3.1 Batteries Wiring
a). Series Wiring