Overview
The Ampinvt 1200W DC 12V pure sine wave inverter with charger is an off-grid inverter-charger with UPS backup function, combining a DC-to-AC pure sine wave inverter, an AC battery charger, and an AC automatic transfer (mains switcher). It is designed for a 12V battery system and provides 120 VAC output for running AC loads while charging the battery bank when AC power is available.
Key Features
- Pure sine wave output (low frequency) for sensitive and inductive loads.
- Inverter + charger + AC auto-transfer switch (UPS backup): charges the battery bank when AC input is connected and transfers AC input to the load.
- Continuous power: 1200W; Peak power: 3600W.
- Built-in automatic AC charger: 15A max; charging current adjustable from 0% to 100% (0% disables charging).
- High transfer efficiency: above 88% (also stated as above 90%).
- Built-in AVR stabilizer and toroidal transformer (strong overload and impact resistance).
- Battery type settings: SLA / AGM / GEL / Li-ion & Customize; supports LiFePO4, AGM, Flooded, Lithium, Sealed, Gel, and Flooded batteries (12V systems).
- Battery temperature sensor protection.
- Interfaces/controls indicated: LCD display, LED indicators, function keys, remote control port.
- Protections: battery low voltage alarm, battery high voltage alarm, over temperature protection, over load protection, short circuit protection; 110%–120% output maintained for 30s.
Five Working Modes
- AC Priority Mode – AC input (utility/city grid) supplies AC output first and charges the battery at the same time; switches to battery power when AC input is absent.
- Battery Priority Mode – Battery supplies AC output; when battery voltage reaches the low limit, the unit switches to AC input (if present) or shuts down (if AC input is absent). Returns to battery supply when voltage restores to the restore setting.
- ECO Mode – Similar to AC priority mode; when AC input is off, enters standby when load is under 5% inverter capacity and wakes when load exceeds 5% of inverter capacity.
- Generator Mode – For unstable generator input via AVR regulation; automatic matching 50Hz/60Hz; regulates output voltage within normal operating range.
- Unattended Mode – Similar to AC priority mode; shuts down AC output and enters standby when AC input is off and battery voltage is too low; restarts after charging to the restore voltage point or when AC input returns.
Specifications
| Parameter | Value |
|---|---|
| Series | HT-Series |
| Inverter type | Pure sine wave inverter-charger (off-grid inverter charger, UPS backup power) |
| Continuous output power | 1200W |
| Peak power | 3600W |
| Battery system voltage | 12 VDC (12V battery system only) |
| AC output voltage | 120 VAC |
| Max AC charging current | 15A |
| Charging current adjustment | 0%–100% (0% turns off charging) |
| Transfer efficiency | Above 88% (also stated as above 90%) |
| Dimensions | 310 mm x 290 mm x 137 mm |
| Parallel operation | Not supported (cannot connect in parallel) |
Important Notes
- This inverter only works with a 12V battery system.
- Battery must be connected first.
- The inverter cannot be connected in parallel.
- When AC power is connected, the inverter can charge the battery bank.
What’s Included
- 1 x 1200W 12V inverter
- 1 x battery cable
- 1 x user manual
Applications
- Outdoor RV application
- Household appliance power backup
- Commercial office
- Communication base station
For installation guidance and pre-sales/after-sales support, contact: https://tsolar.top/ or service@tsolar.top.
Details
Reliable off-grid power for RV, cabin, and backup use with an HT-Series pure sine wave inverter-charger.
Clear LCD controls and easy-to-access AC input/output and battery connections make setup and monitoring straightforward.
Build a compact 12V power system by pairing the inverter-charger with a compatible battery bank for stored energy.
Connect utility or generator power to AC input, wire your loads to AC output, and attach a 12V battery bank for UPS-style backup.
Pure sine wave output supports sensitive electronics, while the built-in charger and transfer switching help keep batteries topped up when AC is available.
Designed for 12V DC battery systems and 120V AC output with 1200W continuous inverter power.
Rear-panel wiring points are clearly labeled for AC input, AC output, and battery positive/negative terminals.
Multiple 12V battery profiles plus adjustable charging current help match charging behavior to your battery type.
Suitable for a wide range of applications—from RV and home backup to office equipment and remote power sites.
Compact enclosure (310 × 290 × 137 mm) with battery cable and user manual included for installation.
