Battery Charging

Battery charging is possible only when shore power is present and the Freedom HW unit is connected to a battery (or battery bank).

The frequency of battery charging is determined by how much energy in the battery is used up during inverting. Whenever the Freedom HW detects a battery voltage that falls below 12.8 Vdc, the unit will begin charging the battery, i.e., enter into bulk and absorption stages then settle in float stage. If battery voltage does not reach 5 Vdc after 1 minute or 10 Vdc after 15 minutes as shown in the graph, the unit will terminate the charging process and the error code E12 will show on the display screen.

Figure 4-1below illustrates the three-stage charging process used to maximize Freedom HW’s charging efficiency.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Voltage

 

 

 

 

 

 

 

 

 

 

NOTE:

 

 

 

 

 

 

 

 

 

 

 

If an external DC load is

 

 

 

 

 

 

Bulk Stage Absorption Stage

Float Stage

 

 

Absorption

 

 

 

connected to the battery

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and it drains the battery

 

Voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

down to 12.8 Vdc, the

 

Float Voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

charger will start a new

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10V

 

 

 

 

 

 

 

 

 

 

 

 

 

bulk stage.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Time

 

 

 

1 min

 

 

 

 

5 hrs Max

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15 min

 

 

8 hrs Max

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Current

NOTE:

Charge Current Setting

Bulk Stage Absorption Stage

Float Stage

Maximum

Charge Current

Setting

During the Float stage, the charger will provide up to the maximum set charge current to compensate for an external DC load on demand.

Float Current

Time

Figure 4-1Three-stage Charging Process

Table 4-2below illustrates the battery charging status as shown on the Status LED and display screen.

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Xantrex Technology HW 1000 manual Battery Charging, 1Three-stage Charging Process
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HW 1000 specifications

Xantrex Technology HW 1000 is a well-regarded power inverter designed to meet the needs of recreational vehicle (RV) enthusiasts, marine applications, and off-grid solar systems. With its robust design and advanced technology, the HW 1000 offers an optimal solution for transforming DC power into reliable AC power, making it an essential component for anyone who requires off-grid energy solutions.

One of the main features of the Xantrex HW 1000 is its ability to deliver a continuous output of 1000 watts with a peak surge capability of up to 2000 watts. This means it can handle high inrush currents needed by appliances like refrigerators and air conditioners, providing a reliable power supply, even during demanding operations. The inverter is equipped with a pure sine wave output, which is crucial for sensitive electronics, ensuring that devices operate smoothly without the risk of damage or interference.

The HW 1000 employs advanced technology to detect and eliminate any harmonic distortion, giving users clean and stable power for any application. The inverter features built-in safety mechanisms such as over-voltage, under-voltage, and thermal overload protection, which safeguard both the unit and the devices connected to it. This robust protection ensures longevity and reliable operation, even in challenging conditions.

Portability is another key characteristic of the Xantrex HW 1000. Compact and lightweight, it can be easily transported in an RV, boat, or even a truck bed. The inverter is designed for easy installation, with a user-friendly interface that includes LED indicators for battery status, output voltage, and fault alerts, allowing users to monitor performance easily.

The HW 1000 is versatile and can be used in various applications, making it ideal for both recreational and emergency situations. It can power tools for construction work in remote locations, support essential appliances during power outages, or even charge batteries in solar setups, showcasing its adaptability across different energy needs.

In summary, the Xantrex Technology HW 1000 is a powerful, efficient, and versatile power inverter packed with essential features that ensure reliable performance for a wide range of applications. Its lightweight design, safety features, and pure sine wave output make it a popular choice among outdoor enthusiasts, tradespeople, and anyone looking for a dependable power solution.
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