Big Genny Manual

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© SimpliPhi Power, Inc. REV072519
BIG GENNEY OPERATOR’S MANUAL | 4
2. PRODUCT DESCRIPTION
Overview
The Big Genny converts low voltage, direct current (DC) to 110-volt Pure Sine Wave alternating current
(AC). The inverter draws power from 12-Volt DC Lithium Ferro Phosphate (LFP) batteries included in the
Big Genny. These batteries are similar to those used in marine, golf cart, fork-lift and other high current
12-Volt applications. The Big Genny provides power security and seamless integration with either a solar
photovoltaic (PV) charging source (with Emergency Power Kit) or traditional / AC charging source.
Getting Started – Your Energy Requirement
The battery included in the Big Genny has a rated capacity of 1,240 total Watt-hours DC / 1,116 Watt-
hours AC assuming a maximum inverter efficiency of 90%. Connected loads consuming more energy
than ~1,116 Watt-hours will result in low battery voltage and inverter shutdown. See Table 1 below for
expected runtimes for various loads.
Table 1 – Big Genny’s Approximate Potential Load Runtimes
Load Draw (Watts)
Approximate Runtime (hours, minutes)
1,000 W
1 hour, 7 minutes
900 W
1 hour, 14 minutes
800 W
1 hour, 23 minutes
700 W
1 hour, 35 minutes
600 W
1 hour, 51 minutes
500 W
2 hours, 14 minutes
400 W
2 hours, 47 minutes
300 W
3 hours, 43 minutes
200 W
5 hours, 34 minutes
100 W
11 hours, 9 minutes
50 W
22 hours, 19 minutes
*Runtime may vary depending on the Big Genny battery’s starting State of Charge, the type of connected
appliance (AC or DC), and the operating efficiency of the Big Genny’s inverter while the loads are
connected.