Network UPS & PoE Backup for Lebanon Power Outages

Network Power Backup in Lebanon: A Survival Guide

Lebanon's power grid delivers between 2 and 10 hours of electricity per day in most areas. Beirut gets slightly more; the Bekaa Valley, Akkar, and parts of the South get less. The remaining hours are covered by neighborhood generator subscriptions ("ishtirak"), private generators, solar panels, or nothing at all. For any network — home internet, office infrastructure, ISP backbone, or WISP tower — power backup is not optional. It is the single most important infrastructure decision after the network equipment itself.

HI-GAIN stocks dedicated networking power backup devices at our Dora, Beirut warehouse. This guide covers PoE UPS units, voltage converters, and battery backup strategies specifically designed around the wattage profiles of MikroTik and Ubiquiti equipment.

The Devices: What HI-GAIN Carries for Network Power Backup

PoE Router UPS

The PoE Router UPS is purpose-built for keeping routers and access points alive during power cuts. Unlike a traditional computer UPS that outputs 220V AC (then the router's adapter converts back to DC — wasting 20-30% of battery capacity in conversion losses), a PoE UPS outputs DC voltage directly over Ethernet. This means zero conversion loss and significantly longer runtime from the same battery capacity.

Key specifications of the PoE Router UPS:

• Input: 220V AC mains power
• Output: PoE (DC over Ethernet) to power connected devices
• Built-in lithium battery for extended runtime
• Automatic switchover: no interruption when mains power drops
• LED indicators for battery level and charging status

For a typical Lebanese household running a MikroTik hEX (5W) or hAP AX Lite (11W), the PoE Router UPS provides several hours of continuous runtime — enough to bridge the gap between grid power and generator startup, or to maintain internet through a short outage without touching the generator allocation.

Voltage Converters

Not every backup scenario involves a UPS with a built-in battery. Many Lebanese ISPs and WISPs run 48V DC bus power systems in their tower cabinets, powered by large battery banks. The devices connected to these cabinets, however, need specific voltages — 12V for media converters, 24V for MikroTik radios, or 48V for Ubiquiti equipment. Voltage converters bridge the gap:

• Up-Voltage Converter 17W — Steps up lower voltage (e.g., 12V from a car battery or solar panel) to the voltage needed by networking devices. Maximum output: 17W. Powers a MikroTik hEX (5W), hEX S (7W), or hAP Lite (3.5W) from a 12V source.
• Up-Voltage Converter 1800W — High-capacity voltage converter for serious installations. Steps up 12V battery bank input to the required output voltage at up to 1800W. Powers entire tower cabinets with multiple radios, switches, and routers from a 12V deep-cycle battery array or solar system.

Power Consumption by Device: Planning Your Backup

The first step in designing a network power backup system is knowing exactly how many watts each device draws. Here are verified power consumption figures for MikroTik and Ubiquiti devices commonly deployed in Lebanon:

Runtime Calculations: How Long Will Your Battery Last?

Battery runtime depends on three variables: battery capacity (measured in Watt-hours, Wh), device power consumption, and conversion efficiency. Here is the formula:

Runtime (hours) = (Battery Wh x Efficiency) / Device Watts

For DC-to-DC systems (PoE UPS or voltage converter feeding DC directly), efficiency is typically 85-90%. For AC UPS systems (battery to 220V AC inverter to device adapter), efficiency drops to 65-75% due to double conversion.

Example Calculations for Common Lebanese Setups

These calculations assume 85% DC-DC conversion efficiency. For AC UPS systems, reduce all runtime values by approximately 25%.

Strategy 1: PoE UPS for Home and Small Office

The simplest backup approach for a Lebanese household or small office: plug the PoE Router UPS between your wall outlet and router. During normal operation, the UPS passes power through while charging its internal battery. When power cuts — whether grid or generator — the UPS instantly switches to battery with zero interruption. The router, ONT (fiber box), and a connected access point stay online.

This setup requires no configuration, no wiring, and no technical knowledge. It handles the most common Lebanese scenario: the 5-15 minute gap between grid power cutting and the neighborhood generator starting, or the hours when neither grid nor generator are available.

Strategy 2: Voltage Converter + External Battery for Extended Runtime

For installations needing more than a few hours of backup — a home office that needs all-day connectivity, or a small WISP relay site — the Up-Voltage Converter 17W paired with an external 12V battery provides extended runtime at minimal cost.

The configuration: connect a 12V deep-cycle battery (7Ah, 18Ah, or larger) to the voltage converter's input. The converter steps up to the required 24V or 48V for your router or radio. A separate float charger keeps the battery topped up from mains or generator power when available.

For a MikroTik hEX drawing 5W, a 12V 18Ah deep-cycle battery (approximately $25-35) provides 37 hours of runtime through the 17W converter. That covers the entire day-and-night cycle during Lebanon's worst power conditions.

Strategy 3: High-Capacity Backup for ISP/WISP Sites

ISP points of presence and WISP tower sites cannot afford downtime. The Up-Voltage Converter 1800W supports serious battery bank installations:

• Battery bank: Four 12V 100Ah deep-cycle batteries wired in parallel = 4800Wh total capacity
• Connected load: Router (25W) + PoE switch (30W) + 4 sector radios (60W total) + backhaul radio (25W) = 140W
• Runtime at 85% efficiency: (4800 x 0.85) / 140 = 29 hours

This is enough to survive an entire 24-hour power blackout — not uncommon in rural Lebanon. Solar panels (300-600W array) charging the battery bank through a charge controller create a fully autonomous power system that keeps the tower running indefinitely regardless of grid or generator availability.

Choosing Low-Power Routers to Maximize Runtime

The most effective way to extend backup runtime is reducing power consumption at the source. MikroTik routers are notably power-efficient compared to alternatives:

• The MikroTik hEX draws just 3-5W and routes at near-Gigabit speeds with full RouterOS features. For home internet backup, it is the ideal choice.
• The MikroTik RB5009UG+S+IN draws 14-25W and provides enterprise-class routing with seven 1G ports, one 2.5G port, and a 10G SFP+ cage. Compare this to a Cisco ISR 4321 drawing 75-150W for similar routing capacity.

For detailed specifications on these routers, see our MikroTik hEX guide and RB5009 guide.

Practical Tips for Lebanese Power Backup

• Always use DC-to-DC where possible. Every AC conversion step wastes 20-30% of your battery capacity. A 12V battery feeding a voltage converter that outputs 24V DC to a MikroTik router is 85% efficient. The same battery feeding an inverter that outputs 220V AC to a wall adapter that outputs 24V DC is only 65% efficient.
• Separate network backup from computer backup. Your router, ONT, and access point together draw 15-25W. Your desktop PC draws 200-400W. Running both on the same UPS drains the battery in under an hour. Give the network its own dedicated backup system.
• Protect against generator surge. When the neighborhood generator starts, it often produces a voltage spike. Use a surge protector between the generator line and your equipment. Better yet, use a PoE UPS that filters the input power.
• Monitor battery health. Lead-acid batteries in Lebanon's summer heat (35-40°C ambient in non-air-conditioned spaces) degrade faster than rated. Replace 12V lead-acid batteries every 18-24 months. Lithium batteries last 3-5 years but cost 3-4x more upfront.

All power backup devices are available at HI-GAIN's Dora, Beirut warehouse. Check real-time stock and pricing or call +961 3 337 666. Browse our MikroTik catalog for low-power routers that maximize your battery runtime.