APC Back-UPS Connect CP12142LI 12V Lithium Battery

The APC CP12142LI is a lithium battery backup that keeps critical networking gear running when the main power fails. It was built with routers, modems, and VoIP phones in mind, so your internet, phone calls, and smart home devices stay online during an outage.

Inside the unit sits a 12 V DC, 19,500 mAh lithium-ion pack that can supply up to 38 W (140 VA) for as long as 12 hours, depending on the load you place on it. That stamina is enough to keep a typical home gateway, Wi-Fi access point, and a small switch active through an extended blackout.

Day to day, the UPS is easy to live with. A clear LED panel tells you at a glance how much charge remains and whether the battery is recharging. When the pack is empty, it returns to full in about 24 hours, so you are ready for the next interruption without fuss. The enclosure stays compact, and at the same time it is light enough to sit on a shelf, tuck beside a desk, or mount near ceiling-installed access points.

APC builds eight layers of battery management into the design. This circuitry guards against overcharge, over-discharge, overheating, and short circuits, extending battery life and keeping connected equipment safe. The protection makes the CP12142LI a practical choice for remote workers who rely on a stable connection, small businesses that depend on cloud-based point-of-sale terminals, and homeowners who want security cameras and smart locks to stay powered through the night.

Whether you need reliable backup for a home office, a small retail counter, or a network closet, this unit delivers steady power in a straightforward, dependable package.

Highlights:

• 12 V DC, 19,500 mAh lithium-ion battery provides long-lasting energy
• Delivers up to 12 hours of runtime for essential networking devices
• 38 W (140 VA) output supports routers, modems, VoIP phones, and small switches
• Recharges to full capacity in 24 hours
• Eight-layer Battery Management System protects against overcharge, overheating, and short circuits
• LED display offers clear status updates for power and battery life