UPS accessory APC E3SBT4 Grey Easy UPS 3S 428x760x157 mm

The APC E3SBT4 Grey Easy UPS 3S battery string is an accessory designed to extend runtime and enable scalable battery capacity for Easy UPS 3S systems. It is intended for installation in an Easy UPS 3S Empty Modular Battery Cabinet or directly into chassis with internal battery slots, providing an integrated solution for longer backup periods. The product is grey, with compact dimensions of 428 mm width, 760 mm depth and 157 mm height, and a total weight of 108 kg for the assembled string of modules.

Advantages

This battery string contains four 7.2 Ah battery modules configured to work as a single unit, which simplifies installation and maintenance compared with individual batteries. The modular format allows predictable scalability of backup capacity when paired with compatible Easy UPS 3S systems and modular cabinets. Physical dimensions and standardized module design ensure compatibility with the Easy UPS 3S Empty Modular Battery Cabinet and chassis that provide internal battery slots.

Suitable for

• Extending runtime of Easy UPS 3S installations
• Use inside Easy UPS 3S Empty Modular Battery Cabinet
• Integration into UPS chassis with internal battery slots
• Modular backup setups in small to medium data closets and network rooms

Key specifications

• Battery composition: four 7.2 Ah battery modules per string
• Compatibility: designed for Easy UPS 3S family and compatible modular cabinets
• Dimensions (W x D x H): 428 mm x 760 mm x 157 mm
• Weight (assembled string): 108 kg
• Colour: Grey

How to use

Install the battery string in the Easy UPS 3S Empty Modular Battery Cabinet or into an Easy UPS 3S chassis that supports internal battery slots following the UPS manufacturer’s installation instructions. Ensure the UPS is powered down or in maintenance mode and all safety procedures are followed. Connect the string to the UPS battery connector or cabinet bus as specified by APC, secure the modules in their mounting positions, and verify proper connection and ventilation. After installation, perform a controlled startup and run a battery test to confirm correct operation and communication with the UPS system.

Recommendations

Store and operate the battery string in a clean, dry, and temperature-controlled environment within the limits specified by the UPS documentation. Regularly inspect connections and module condition, and schedule periodic battery tests and replacement according to APC's maintenance guidance to ensure reliable backup performance.