GP800 Offline UPS 800VA 480W Standby Power Supply for PC & POS

Reliable 800VA Offline UPS for PC, Router and Network Devices

The GP800 is ulinkeep’s desktop standby 800VA offline UPS for home offices, small businesses and network cabinets. Rated 800VA / 480W, it keeps a desktop PC, router or POS terminal running through short outages and brownouts — enough time to save files and shut down cleanly. The whole unit weighs about 5 kg in a compact tower case, so it sits under a desk or beside a weak-current cabinet without taking up space.

The front panel carries an LCD (an LED indicator version is optional) that shows input / output voltage, battery level and load in real time, next to a round power button. Side ventilation grilles keep the case cool during continuous operation. This 800VA offline UPS works as a plug-and-play uninterruptible power supply (UPS): select 110Vac or 220Vac input to match your regional grid, plug it in and switch on.

Need more capacity? The same series also covers the GS1000 1000VA offline UPS and the GP600 600VA offline UPS, so you can standardize on one product family from 400VA to 1000VA.

Instant Power Failure Protection with LCD or LED Display

When the mains fails, the GP800 switches to battery instantly and continuously supplies the load — no waiting, no reboot. The display is available as an LCD panel or a simple LED indicator set, so you can match the unit to your budget and monitoring needs. The case is made of ABS fireproof plastic: light, dexterous and safe for desktop or shelf mounting. This 800VA offline UPS gives office PCs and store terminals a dependable last line of defence against sudden blackouts.

AVR Boost and Buck Regulation for Unstable Grids

In regions where the grid swings between brownout and overvoltage, the built-in AVR (automatic voltage regulation) handles it before the battery is even touched: input from roughly 140–300V is boosted or bucked automatically to a stable 220V ±10% output. That means fewer battery cycles, longer backup life and steadier equipment operation. For buyers in areas with unstable mains, this 800VA offline UPS doubles as an everyday voltage stabilizer, not just an emergency backup.

Anti-Voltage Surge Protection in Thunderstorms

Thunderstorm weather pushes surge damage to equipment up to ten times the normal level. The GP800 adds multi-stage surge suppression on both the AC line and the optional RJ45 network port: serializing your network cable through the UPS absorbs lightning-induced surges before they reach routers, switches and PC network cards. Pairing this 800VA offline UPS with the RJ45 port keeps both power and network paths protected in the same box.

Wide Input Range and 2–8 ms Transfer Time

Input accepts 110 / 120 / 220 / 230Vac ±10% with 50/60Hz auto-sensing, so one SKU serves most export markets. When the mains does drop, transfer takes a typical 2–8 ms (13 ms max) — short enough that a standard ATX power supply rides through without a reboot. Watch the demonstration below to see the switching behavior of this 800VA offline UPS on a live load:

Battery, Runtime and Full-Function Protection

Inside is a 12V 9AH lead-acid battery (7AH version optional) charged at 1A, with off-mode charging and cold-start function supported. One ordinary desktop PC runs for roughly 10–15 minutes — the point is to save files and shut down cleanly, not to run at full load for hours. Protection covers short circuit, overload, overcharge, over-discharge and overvoltage, and the unit auto-restarts when AC recovers. Battery mode outputs a modified sine wave, compatible with switching-type loads such as PCs, monitors and routers.

Compact ABS Tower with Side Ventilation

The tower case is formed from fireproof ABS with one-piece side ventilation grilles, discharging operating heat in time during long standby and battery runs. The footprint stays close to an A4 half-sheet, so the 800VA offline UPS fits under counters, inside POS cabinets or on office shelves without blocking ventilation.

Rear Panel: USB Port, RJ45 Surge Protection and Universal Outlets

The rear panel carries two universal outlets that accept most regional plug types, plus an optional USB communication port for monitoring and graceful shutdown, and the RJ45 surge-protection jack. Everything a small office needs from an 800VA offline UPS is on one panel: power out, network protected, status visible on the front LCD.

Application Scenarios for Office, Retail and Education

Typical deployments for this 800VA offline UPS: SME offices keep front-desk PCs, monitors and printers alive through trips; chain-store POS runs cash registers, scanners and receipt printers so trading continues during short outages; small network rooms back up routers and switches with the RJ45 surge port in the path; education PC labs batch-deploy it where budgets are tight; clinics and studios use the AVR to ride through unstable grids.

OEM/ODM Customization for Global Brands

GP800 OEM projects are already shipping: one Latin America PC channel needed US-standard output sockets with cycle-tested and capacity-checked battery packs; a Middle East trader took neutral color boxes, multilingual manuals and a drop-test golden sample for repeat orders. Customization depth covers four tiers — minor customization (logo silk-screen, panel content), drawing-based, sample-based and full customization (power segment, socket standard, voltage output). Packaging and logo customization start at 500 sets; carton design in 3 days, samples in 7 days, 1-year warranty with free spare boards and online technical support during cooperation.

GP800 Offline UPS Specifications

Frequently Asked Questions