Over-temp Alarm and Shutdown During inverter mode, the Freedom HF automatically alerts you if it is overheating and approaching the over- temperature shutdown limit.
The Freedom HF automatically shuts down when the limit is exceeded.
Low Power Consumption When the Freedom HF is inverting without a load, it draws less than 1 amp of current from the battery (or battery bank).
This feature allows the unit to operate without draining too much stored energy.
Battery-friendly Charging For the inverter to perform effectively, the batteries must be charged correctly. The Freedom HF has a built-in three- stage charging system that extends the life and optimizes the performance of the batteries.
In addition to the numerous features which let you maximize your battery’s life and performance, the Freedom HF—unlike many chargers—also has the ability to recharge a near-zero1voltage battery and an ignition-switched 20-amp auxiliary 12-volt power source2.
1.Near-zero or dead batteries can be recharged. However, some batteries which have been left uncharged for days can become severely damaged thus, recharging is futile. 2.Available on the Freedom HF 1055 EMS model and Freedom HF 1800 EMS model. The inverter/charger features a 20-amp fused and switched output voltage supplied from the inverter/charger's positive terminal. When connected to a vehicle's ignition signal, a switched positive voltage is available to power auxiliary circuits that are re- quired to operate only when the vehicle is operational.
Selectable Low Battery Shutdown The low battery shutdown for the inverter can be manually selected by the user.
| Freedom HF 1800 T | All Other Models |
Low Limit | 11.8 volts | 10.5 volts |
High Limit | 12.1 volts | 11.8 volts |
Ignition Control The Freedom HF features the ability to inhibit the inverter from operating in the absence of a voltage signal from a vehicle's ignition circuit. This is particularly useful if the inverter is required to operate only when a vehicle's engine is running.
