battery is full, according to the formula above, the battery use time =200(AH)/
(400/12x110%) = 5.4 (Hour). This means the battery can be used for 5.4 hours.
Notice:
The nominal battery capacity is the discharge capacity in 20 hours discharge
rate ,under the condition when the discharge current exceeds this value, the discharge
capacity will be reduced, the corresponding discharge time will be shortened than the
calculation value, this part of the specification can refer to battery manufacturer, and
whether the battery fully charged will also affect the results.
6. CONNECTION
1). Grounding
The power inverter has a terminal on the back panel marked "Grounding" or " ".
This is used to connect the chassis of the power inverter to the ground.The ground
terminal has already connected to the ground wire of AC output receptacle through
the internal connecting wire. The ground terminal must be connected to the ground
wire, which will vary depending on where the power inverter is installed. In a
vehicle, connect the ground terminal to the chassis of the vehicle. On the ship,
connect the ground terminal to the ship grounding system; In a fixed position,
connect the ground terminal to the earth.
Warnings:
●
To make sure the firmness of the connection. The ground wire must be 14AWG
2
(2.08mm )or even larger.
●
Do not operate the power inverter without connecting to ground. Electric shock
hazard may result.
2). Connect to the battery
(1).Please do all the safety precautions before connection, then check whether the
battery voltage is in accordance with the input voltage of the inverter. Only the
voltage of battery according with the requirements can be allowed to connect with
the inverter.
(2).The connecting wire must be big enough to bear current, or else the inverter can
not support big load because of voltage reduce caused by the small cross-
sectional wire. Depending on the below table, please select the input DC wire or
larger one.
Rated voltage
of inverter
Current max.
load power
Max. current
of wire
Specification of
wire length
≤
1m
Specification of
wire length
≤
1m
Specification of
wire length
≤
N m
1200W
1500W
2000W
2500W
3000W
1200W
1500W
2000W
2500W
3000W
12V
6AWG
(13.3mm )
2
4AWG
(21.15mm )
2
3AWG
(26.67mm )
2
2AWG
(33.62mm )
2
1AWG
(42.41mm )
2
N×6AWG
(N×13.3mm
2
)
N×4AWG
(N×21.15mm
2
)
N×3AWG
(N×26.67mm
2
)
N×2AWG
(N×33.62mm
2
)
N×1AWG
(N×42.41mm
2
)
3AWG
(26.67mm
2
)
1AWG
(42.41mm
2
)
0AWG
(53.49mm
2
)
00AWG
(67.43mm
2
)
000AWG
2
(85.01mm )
24V
100A
150A
200A
250A
300A
50A
75A
100A
125A
150A
9AWG
(6.63mm )
2
7AWG
(10.55mm )
2
6AWG
(13.3mm )
2
5AWG
(16.77mm )
2
4AWG
(21.15mm )
2
N×9AWG
(N×6.63mm
2
)
N×7AWG
(N×10.55mm
2
)
N×6AWG
(N×13.3mm
2
)
N×5AWG
(N×16.77mm
2
)
N×4AWG
(N×21.15mm
2
)
6AWG
(13.3mm
2
)
4AWG
(21.15mm
2
)
3AWG
(26.67mm
2
)
2AWG
(33.62mm
2
)
1AWG
(42.41mm
2
)
Notice:
1. The above table is only for your reference. In practice, the thick wire can be replaced
by two thin parallel wires if only the total section acreage of the wire meets the
requirements.
2.In high current, the input DC wire may produce voltage drop, therefore, the operating
voltage should be subject to the value on the terminals. If the voltage drop is too
large, it can increase the acreage of the section or reduce the length of the lead. The
recommended length of lead is less than 1m.
3.Connect cathode wire of the battery to the cathode terminal (black) on the back panel
of inverter and then connect the anode wire of the battery to the anode terminal (red)
on the inverter, and fix them.
Warnings:
1) Please wear eye patch and work clothes when working around the battery to avoid
the acid and corrosive objects harm your eyes and skin.
2) Prepare enough water and soap. In case the acid materials contact eyes or skin,
clean it by soap and water as soon as possible. If the acid materials spay to your
eyes accidentally, clean it by cold water immediately and then sent to hospital.
3) Do not put any combustible material in the location of installation for spark will result
when it is connected to the battery.
4) Keep good ventilation. The battery may produce a little inflammable gas when it
works, so keep away from the inverter and it is better to install them in different
space.
5) Fix the connecting wire of the input DC, or it will result the over-reduction of the
voltage or over-temperature of the wire.
6) Reverse connection of the polarities or the short circuit will burn the fuse or result the
permanence damage of the internal elements of inverter.
7) Take away the metal accouterment, such as ring or watch, when installation to avoid
the short circuit.
6
7
