Battery Sizing Example

Battery Sizing Example

This example illustrates a typical calculation, assuming an opportunity to charge the batteries every three days.

 

 

 

Daily watt-hours

 

 

 

needed for this

 

(A) Power

(B) Operating

appliance

 

Appliance

Consumption

Time per Day

(= A x B)

 

 

 

 

 

 

 

 

 

TV & VCR

115 W

3 hours

345 Wh

 

 

 

 

Sewing machine

150 W

1 hour

150 Wh

 

 

 

 

 

Bread maker

600 W

1 1/2 hour

900

Wh

 

 

 

 

 

Blender

300 W

15 min = 1/4 hour

75

Wh

 

 

 

 

 

 

 

 

 

 

Total Daily watt-hours of AC load

1470

Wh

 

 

 

 

 

x Number of Days between charges

 

3

 

 

 

 

 

 

= Total watt-hours of AC load between charges

4410

Wh

 

 

Battery Ah used between charges (divide by 10)

441 Ah

 

 

 

 

Recommended Battery Bank Size in Ah (multiply by 2)

882 Ah

 

 

 

 

 

This example illustrates how quickly your battery needs can escalate. To reduce the required battery size, you can conserve energy by eliminating or reducing the use of some loads or re-charge more frequently.

When sizing your battery, resist the temptation to skip the last step of this calculation (multiplying by 2). More capacity is better since you will have more reserve capacity, be better able to handle large loads and surge loads, and your battery won't be discharged as deeply. Battery life is directly dependent on how deeply the battery is discharged. The deeper the discharge, the shorter the battery life.

32

Page 47
Image 47
Xantrex Technology PROwatt 600 manual Battery Sizing Example, Power Operating Appliance Consumption Time per Day = a x B

PROwatt 600 specifications

Xantrex Technology PROwatt 600 is a powerful and reliable inverter designed to meet the needs of mobile users and off-grid applications. This compact device converts DC power from batteries into AC power, enabling users to run a variety of appliances and equipment that would normally require a standard power outlet. With a continuous power output of 600 watts and a surge capability of 1200 watts, the PROwatt 600 is particularly well-suited for powering smaller electronics, tools, and household devices in a variety of settings, such as RVs, boats, and remote work sites.

One of the standout features of the PROwatt 600 is its pure sine wave output. This technology produces electricity that is nearly identical to the power supplied by traditional utility companies, making it safe for sensitive electronics, such as laptops, medical equipment, and sophisticated audio/video systems. The pure sine wave inverter minimizes harmonic distortion and ensures that devices operate efficiently and without the risk of damage, which is essential for protecting your valuable electronics.

The compact and lightweight design of the PROwatt 600 makes it easy to transport and install. The unit comes with mounting brackets and has a slim profile that allows for convenient installation in tight spaces. Additionally, the fanless operation of the inverter results in silent performance, making it an excellent choice for use in quiet environments, such as camping trips or residential settings.

Xantrex emphasizes safety and reliability in the PROwatt 600. The inverter is equipped with multiple protection features, including over-voltage, under-voltage, overload, and over-temperature protection. These built-in safeguards help prevent damage to the inverter itself as well as the devices being powered, providing users with peace of mind while operating their equipment.

The PROwatt 600 is also designed to be user-friendly. With a simple power switch and LED indicators for power status, users can easily monitor and operate the inverter without complex setup procedures. This ease of use makes it accessible for users of all experience levels.

In summary, Xantrex Technology PROwatt 600 is an excellent choice for those seeking a portable and efficient power solution. Its pure sine wave technology, compact design, safety features, and user-friendly operation make it a versatile tool for powering electronics in various mobile and off-grid applications. Whether for work, recreation, or emergency backup, the PROwatt 600 meets the demands of modern power needs with reliability and performance.