General Questions About Battery Backup

A "stand-by" or "off-line" UPS directs main utility power to your equipment as long as it's available. When the utility power fails it switches to the battery as a source of temporary power. "Line interactive" designs also power connected equipment using available utility power, except they also provide voltage regulation within a limited range in order to reduce the occurrence of battery use. An "on-line" type of UPS powers connected equipment from battery power 100% of the time. Available utility power is only used to charge the battery.

SL350 is a stand-by UPS.

KIN and SBN models are line interactive.

SCV models are on-line.

VA stands for "volt-amp" which equals volts x amps. In the United States standard residential and commercial electric power is 120 volts AC . Current flows to electric powered equipment at different rates, depending on how much power the equipment uses. This measure of current is amperes, or "amps". 

The right UPS for your application is determined by several factors. To select the right UPS you will need to know:

  • The power requirement of your equipment load. How much electric current does your equipment need? This is usually measured in amps (current) or watts (power).
  • How long does the UPS need to support operation of the equipment in case of a black-out? This will be UPSs required "run time".
  • How critical is the application? Of course, any application is important if you are considering a UPS. However, since the most reliable on-line UPS models are more expensive than the simpler stand-by models it is best to match the features of the UPS with the value of the application.

The UPS models are described based on their power rating in terms of their wattage (W) rating. Match this with the power requirement of your application. The run-time of the UPS is stated for full capacity current draw and one-half capacity. The most critical applications (security or network communications) should probably be supported by an on-line model. The less critical applications (cash registers or work stations) are usually matched with a stand-by device.

The most typical application is to maintain power on a computer so that, should main electric power be suddenly lost (because of a black out, a thunder storm or some other reason), recent work can be saved before the computer shuts down. Besides computers, other important data processor driven electronics can benefit from battery support:

  • Telephone and telecommunications equipment
  • Digital signage player and display
  • Digital video recording systems
  • Digital mixing consoles
  • Access control and security systems
  • Emergency evacuation public address systems

Because the electric power provided by your local utility can suddenly be interrupted due to a black out, thunder storm or some mechanical failure. A UPS can maintain operation of critical equipment until utility power is restored or until the equipment can be properly shut down.

UPS stands for Uninterruptible Power Supply. Its purpose is to supply power to certain critical or important electronic devices whenever main electric power is interrupted. Depending on the specific design, a UPS contains one or more batteries, components to clean up the AC power provided by the utility company and a relay to switch from main utility power to the battery power in the case of a "stand-by" UPS.


These products are designed and assembled for a commercial market that demands high levels of reliability. There are no published recommendations regarding portability and use in a mobile application. Naturally, we recommend protecting the UPS in a padded or shock-mount case. In this manner the UPS should be able to withstand normal static shocks associated with travel. A UPS should always be plugged into electric power to keep the batteries charged when not in use. 

Recharge time is stated as the time to bring a completed depleted battery back to 90% of its charge capacity, once main AC power is restored. This time is typically about 5 hours after complete discharge into 100% capacity load. This time will be greater when charging additional external battery cabinets used with the larger UPS models. Of course, much less time it required to recharge the battery when it has only been partially discharged. Note: connected equipment will be operational while the batteries recharge.

Additional battery time can be added to the XPRT and NXRT models.

Most UPS models are designed to allow the user to replace the battery when necessary. Consult the operating manual before attempting battery service. Dispose of used batteries properly.

The battery charger will maintain a float-charge on the battery whenever utility power is available so that the battery will have a full charge when needed. Battery condition should be checked periodically. Typical battery life when being maintained on utility power is 3 to 5 years.

To keep the batteries in best condition it is recommended that the batteries be recharged every 4 months when being stored. If the batteries are stored for 6 months or more without being recharged there is a risk that they will not be rechargeable and will need to be replaced.

All models have battery test or status data output capability which can be monitored on the front of the UPS or remotely by way of a Standard Network Management Protocol (SNMP) communication connection and Windows based graphical interface software. (Accessory components are required.)

Two types of batteries are used for a UPS. The most common are sealed, valve regulated, reduced maintenance, lead acid cells. The other type are lithium iron batteries, the sort used in the Tesla automobile. Those look much like a larger version of the common AA type battery. Some batteries are user replaceable. Always consult your owners manual before performing any maintenance.

The UPS designs presented here plug directly into the wall. Your equipment then plugs into the UPS.

The amount of time the battery power will last (known as "run time") depends on the relative amount of power being used by equipment connected to the UPS. This is usually stated as a time if half the UPSs capacity is being used and a time if all the capacity is being used. For example a  SCV 10001 model has a run time of 10 minutes at half load and 3 minutes at full load. Using a larger UPS than the load requires will increase the battery run time. Further, additional batteries can be added to the SBN or SCV Series series to extend the UPS run time. See the Juice Goose catalog or contact Juice Goose for additional details. 

Service & Warranty

Warranty for the SBN and SCV Series UPSs is three years on electronics and one year on the battery from the date of manufacture.

Warranty for the KIN Series is one year on electronics and one year on the battery from the date of manufacture.

Warranty for the SL350 is three years on electronics and three years on the batteries from the date of manufacture. 

Warranty service is provided by the manufacturer of the UPS. However, Juice Goose provides direct technical support and customer service for all UPS products it sells. For information or assistance contact Juice Goose: This email address is being protected from spambots. You need JavaScript enabled to view it. or 713-772-1404.