3.5kW Off-Grid Power Inverter (OG-3500)

Name: 3.5kW Off-Grid Power Inverter
Brand: Your Company Name
SKU: OG-3500

Product Overview

The OG-3500 bundles an inverter and charge controller into one box — the simplest way to build a standalone power system where the grid doesn’t reach. One device, one installation, one warranty.

Built for remote sites

Pure sine wave output runs pumps, fridges and telecom equipment safely, while the generator input with auto-start signal keeps batteries charged through long cloudy periods. The LCD panel shows battery voltage, load percentage and fault history without needing any app or connectivity.

Technical Specifications

DC Input (PV)
Built-in Charge Controller	PWM, 40 A
Max PV Input	2200 W

Battery
Battery Voltage	48 VDC (lead-acid / LiFePO4)

AC Output
Rated Output Power	3500 W
Peak Power (surge)	7000 W (< 5 s)
Output Voltage / Frequency	230 VAC / 50 Hz
Output Waveform	Pure sine wave (THD < 3%)

Protection & Environment
AC Input	Grid or generator charging input
Ingress Protection	IP20 (indoor installation)

Key Features

All-in-one: inverter + charge controller in one unit
Pure sine wave output safe for sensitive electronics
Generator start signal for automatic genset control
LCD display with battery and load status at a glance

Applications

Cabins and holiday homes without grid access
Rural electrification programs
Telecom and monitoring stations

Downloads

Product Datasheet (PDF) og-3500-datasheet.pdf Download

Frequently Asked Questions

Can I add more solar panels later?

The built-in PWM controller handles up to 2200 W of PV. For larger arrays, an external MPPT controller can charge the same battery bank alongside the OG-3500.