AMPINVT 1200W Pure Sine Wave Inverter with AC Charger — 12V to 120V UPS Backup, Adjustable Charger

The AMPINVT 1200W Pure Sine Wave Inverter converts 12V DC to clean 120V AC power while combining an adjustable charger and automatic transfer switch for dependable UPS-style backup.

This all-in-one unit integrates a true pure sine wave inverter, an AC battery charger, and an auto-transfer switch to provide smooth AC output and controlled charging for SLA, AGM, Gel, Li-ion and flooded batteries. Designed for off-grid, mobile, and backup scenarios, the device emphasizes stable output, configurable charging current, and multi-mode operation to match different power sources and priorities.

How does the inverter handle power when grid or generator input is present?

When AC input is available the inverter can prioritize incoming AC to power loads while simultaneously charging the connected battery bank. The built-in auto-transfer switch achieves fast handover with high efficiency, so critical loads see minimal interruption.

• AC priority mode: input AC powers loads and charges battery
• Generator mode: optimized for generator-supplied AC
• High transfer efficiency above 90% to reduce losses

What battery types and charging options are supported?

The unit supports sealed lead-acid variants (SLA, AGM, GEL), flooded batteries and Li-ion chemistries including LiFePO4 when configured. Charging current is user-adjustable up to 15A, and setting 0A disables charging entirely for systems that use external charge controllers or generators.

• Selectable battery profiles for SLA/AGM/GEL/Flooded/Li-ion
• Adjustable charge current from 0 to 15A for tailored charging
• Supports LiFePO4 with appropriate configuration settings

What protections and safety features keep my equipment and batteries safe?

AMPINVT included a broad set of protective measures to prevent damage from common fault conditions and transients. The inverter monitors voltage, temperature, and output load and reacts automatically to protect both the inverter and connected devices.

• Battery low and high voltage alarms with configurable thresholds
• Over-temperature, overload, and short-circuit protection
• Automatic bypass when output exceeds design limits to avoid damage

Which operating modes help optimize runtime and efficiency?

Choose from five distinct modes to match your usage: AC priority for uninterrupted input-supplied power, battery priority for maximizing inverter-supplied runtime, generator mode for generator compatibility, ECO mode for efficiency, and unattended mode for automated low-voltage recovery settings. Each mode adjusts behavior so the system responds to AC availability and battery state appropriately.

• Battery priority & unattended modes include low-voltage restore and protect options
• ECO mode reduces idle consumption and extends battery life
• Fast, automatic switching minimizes downtime during source changes

Who is this for? The AMPINVT 1200W Pure Sine Wave Inverter is aimed at homeowners and mobile users who need clean AC power from a 12V battery bank — including RV owners, off-grid cabins, emergency backup setups, and small worksite systems. It benefits anyone wanting integrated charging, configurable battery support, and robust protections in a single unit without the complexity of separate devices.