Overview
The Ampinvt 3000W DC 24V pure sine wave power inverter with AC charger is a low frequency inverter that combines an inverter, battery charger, and AC auto-transfer switch. It is designed for a 24V battery system and provides continuous stable pure sine wave output with an internal AVR stabilizer.
Key Features
- Low frequency pure sine wave inverter (FT Series) with 5 working modes (intelligent selection)
- Inverter + battery charger + AC auto-transfer switch in one unit
- High transfer efficiency: above 90% (also stated as up to 92%)
- Adjustable charging current: 0% to 100% (max charge current 35A); 0% disables charging
- Battery type settings: SLA / AGM / GEL / Li-ion / Customize; supports Flooded, Sealed, Gel, Lithium, and LiFePO4
- Built-in AVR stabilizer; impact resistance and strong load capability (as described)
- Battery temperature sensor protection (stated)
- Protection functions: battery low voltage alarm, battery high voltage alarm, over temperature protection, over load protection, short circuit protection
Working Modes
- AC Priority Mode - AC input (utility/city grid) supplies AC output first and charges the battery. Charging stops automatically when the battery is fully charged. When AC input is unavailable, the inverter automatically switches to battery power.
- Battery Priority Mode - Battery supplies AC output. When battery voltage reaches the low-voltage limit: if AC input is available, the inverter switches to AC input supply; if AC input is unavailable, the inverter shuts down. When battery voltage recovers to the restore setting, it switches back to battery supply.
- ECO Mode - Similar to AC priority mode. When AC input is off, the inverter enters standby when load is under 5% of inverter capacity and switches between on/standby to detect loads above 5%.
- Generator Mode - For unstable generator input via the inverter AVR regulator, with automatic matching of 50Hz/60Hz municipal frequency and voltage regulation within the normal operating range (as described).
- Unattended Mode - Similar to AC priority mode. When AC input is off and battery voltage is too low, the inverter shuts down AC output and enters standby; it restarts when the battery is charged back to the restore voltage point. When AC input returns, it restarts AC output.
Specifications
| Brand | Ampinvt |
| Series | FT Series |
| Inverter type | Low frequency pure sine wave inverter |
| DC system voltage | 24V battery system only |
| Continuous output power | 3000W |
| Peak output power | 9000W |
| Max charging current | 35A |
| Charging current adjustment | 0% to 100% (0% turns off charging) |
| Transfer efficiency | Above 90% (up to 92% stated) |
| AC input / AC output (diagram) | N + L = 120V; AC output 120V AC |
| Parallel operation | Not supported |
| Protections | Battery low voltage alarm, battery high voltage alarm, over temperature protection, over load protection, short circuit protection |
| Overload behavior (described) | 110% to 120% maintained for 30s then output turns to bypass; more than 160% maintained for 300ms |
| Battery types (settings/support) | Flooded, GEL, AGM, Lithium, LiFePO4, USER; SLA / AGM / GEL / Li-ion / Customize |
| Product size | 475mm x 300mm x 185mm |
Ports & Controls
- Battery Negative / Battery Positive terminals
- Remote Control port
- LED indicators, LCD display, and function keys
- AC fuse
- AC input and AC output connections
What’s Included
- 1 x 3000W 24V inverter
- 1 x battery cable
- 1 x user manual
Applications
- Household solar energy systems
- Communication base stations
- Touring car / RV-style power setups
- Outdoor camping power systems
- Service organizations
- Shop / supermarket backup or utility power use
Important Notes
- This inverter can charge the battery bank when AC power is connected.
- Works with a 24V battery system only.
- Parallel connection is not supported.
- A battery must be connected, and the battery must be connected first.
For pre-sales checks (battery type settings, wiring questions, or installation guidance), contact customer support at https://tsolar.top/ or service@tsolar.top.
Details


The front panel includes an LCD display, LED indicators, and function keys, while the rear panel provides battery terminals, a remote control port, an AC fuse, and separate AC input and output connections.




The 3000W 24V pure sine wave inverter is suited for household solar systems, communication base stations, touring cars, camping, service organizations, and shops.
