City Engineering — Expertise in Standby Energy

Battery Systems

Dependable stored energy when you need it most

A UPS is only as reliable as its batteries. We supply, test, install and maintain battery systems that guarantee runtime when the power goes out.

Full Battery Lifecycle

Everything your batteries need

From selection and installation to testing and end-of-life replacement — managed by specialists.

Battery Supply

High-quality VRLA and lithium batteries matched to your UPS runtime.

Battery Testing

Impedance and capacity testing to catch weak cells early.

Battery Installation

Correct racking, torque and thermal management.

Battery Replacement

Safe removal and replacement with proper disposal.

Battery Maintenance

Ongoing monitoring to maximize battery life.

Backup Systems

Complete battery backup system design and integration.

Industrial battery backup rack system

Guaranteed Runtime

Runtime you can count on

We engineer battery solutions around your real backup needs, then keep them healthy with proactive testing and maintenance.

  • Runtime sizing to match your backup requirements
  • Battery banks scaled for extended autonomy
  • Preventive replacement before end-of-life failure
  • Documentation and warranty tracking

Protect your backup runtime

Aging batteries are the most common cause of backup failure. Let us test, service or replace your battery systems before it's too late.