4
Battery Selection
Mounting
54 DC Amps × 5 Hrs. Runtime
=
270 Amp-Hours
Example
Tools
300W
+
220W
+
20W
=
540W
Drill
Orbital Sander
Cordless Tool Charger
Appliances
300W
+
140W
+
100W
=
540W
Blender
Color TV
Laptop Computer
7.53 in.
(19.1 cm)
4.31 in.
(10.95 cm)
Tripp Lite recommends that you permanently mount your Inverter in the
configuration illustrated below. The Inverter features integral mounting brackets
on the front and rear of the unit. The user must supply mounting hardware
and is responsible for determining if hardware and mounting surface are
adequate to support the weight of the unit.
Using the measurements as shown in the diagram install two user-supplied
fasteners
1
, leaving the heads slightly raised. Slide the unit over the fasteners
to engage the mounting bracket slots
2
. Tighten fasteners. Install two
additional fasteners
3
over the remaining mounting bracket.
1.2 x 540 watts ÷ 12V =
54 DC Amps
• STEP 1) Determine Total Wattage Required
Add the wattage ratings of all equipment you will connect to your
Inverter. Wattage ratings are usually listed in equipment manuals or on
nameplates. If your equipment is rated in amps, multiply that number
times AC utility voltage to estimate watts. (Example: a drill requires
2.5 amps. 2.5 amps × 120 volts = 300 watts.)
NOTE: Your Inverter will operate at higher efficiencies at about 75% - 80% of nameplate
rating.
• STEP 2) Determine DC Battery Amps Required
Divide the total wattage required (from Step 1, above) by the battery
voltage to determine the DC amps required and multiply by 1.2 to
account for conversion losses.
• STEP 3) Estimate Battery Amp-Hours Required
Multiply the DC amps required (from Step 2, above) by the number of
hours you estimate you will operate your equipment exclusively from
battery power before you have to recharge your batteries. This will give
you a rough estimate of how many amp-hours of battery power
(from one or several batteries) you should connect to your Inverter.
NOTE: Battery amp-hour ratings are usually given for a 20-hour discharge rate. Actual
amp-hour capacities are less when batteries are discharged at faster rates. For example,
batteries discharged in 55 minutes provide only 50% of their listed amp-hour ratings, while
batteries discharged in 9 minutes provide as little as 30% of their amp-hour ratings.
WARNING!
Mount your Inverter BEFORE DC battery connection.
Failure to follow these instructions may lead to personal
injury and/or damage to the Inverter and connected
systems.
2
1
3
Match Battery Amp-Hour Capacity to Your Application
Select a battery or system of batteries that will provide your Inverter with proper DC voltage and an adequate amp-hour capacity to power
your application. Even though Tripp Lite Inverters are highly efficient at DC-to-AC inversion, their rated output capacities are limited by the
total amp-hour capacity of connected batteries plus the output of an alternator when one is used.
