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Selecting the right backup power capacity for a router or ONT (Optical Network Terminal) is not a simple matter of picking the largest battery available. Network equipment operates within specific voltage, current, and peak-load windows, and a mismatch between a Mini UPS and the actual device profile can cause application failure even when the UPS itself is functioning correctly. This challenge is central to the work of Shanghai Mylion New Energy Co., Ltd., operating under the brand MYLION, a Shanghai-headquartered company with global business coverage that focuses on Mini UPS products, DC backup power solutions, and project support for telecom, ISP, broadband, and security applications.

Why Capacity Selection Matters for Network Continuity

Routers, modems, and ONTs are prone to rebooting or losing service during short power outages, voltage drops, or unstable grid conditions. This is an industry pain point that MYLION identifies directly: improper UPS selection regarding voltage, current, peak load, or connectors can lead to application failure. In other words, capacity selection is not only about runtime in watt-hours—it is equally about whether the continuous current, maximum current, and connector type align with the target device’s real operating behavior.

Core Factors in Matching a Mini UPS to Router and ONT Load

MYLION’s approach is built on evaluating solutions based on real device voltage, working current, peak/startup behavior, and installation environment, followed by technical confirmation and connector/cable matching to reduce selection errors. Several elements need to be checked before finalizing a Mini UPS:

• Input and output voltage compatibility: Most router and ONT backup scenarios in MYLION’s portfolio center on 12V DC systems, though the product range also extends to AC-input designs and higher-voltage 24V/48V directions for specialized equipment.
• Continuous current versus maximum current: A device’s steady-state draw must fall within the UPS’s continuous output rating, while its startup or peak draw must not exceed the maximum output rating.
• Battery energy (Wh) for runtime needs: Longer expected outage durations call for higher watt-hour capacity within the same voltage and current class.
• Connector and cable matching: Interface types such as DC5521 input or DC5525 output must correspond to the router or ONT’s physical connector to avoid installation errors.

Standard-Load Scenarios: 12V Standard Series

For entry-level to mainstream broadband backup, the 12V Standard Series addresses routers and ONTs with typical current draw. The MU26W supports a 12V DC input up to 3.5A and delivers 2.5A continuous / 3A maximum output, backed by 18.72Wh of battery energy, using a DC5521 input and DC5525 output interface—suited for telecom, ISP, and home networking equipment experiencing short outages. The MU48W offers a mid-range 29.6Wh capacity with the same 2.5A continuous / 3A maximum output profile through a center-positive DC5525 output, targeting ISP and broadband network equipment. The MU68W extends this further with 44.4Wh of energy and a maximum power output of 36W (12V/3A), intended for professional ISP projects requiring extended coverage.

Longer Outages: 12V Long-Runtime Series

When outages are expected to last longer, such as in residential or remote areas, the MU635W / MU635L models in the 12V Long-Runtime Series provide 75.6Wh of battery energy while maintaining the same 2.5A continuous / 3A maximum 12V DC output as the standard series—prioritizing prolonged service continuity for standard CPE devices without changing the current profile.

High-Load Equipment: 12V High-Power Series

Some gateways or high-performance WiFi equipment exceed the standard 2.5A threshold. For these cases, the MU65W supports a 12V DC input up to 6A and delivers 4A continuous / 5A maximum output (60W total), paired with 56.16Wh of battery energy—addressing high-performance WiFi equipment and storage-integrated gateways. For scenarios that combine high current draw with extended runtime requirements, the MU35W / MU35L in the 12V High-Power Long-Runtime Series support the same 4A continuous / 5A maximum output while raising battery energy to 75.6Wh, serving professional gateways that require both high peak current and long backup time.

Multi-Device and Multi-Port Loads

Some installations require powering a router alongside a USB-connected accessory. The 12V + USB Multi-Output Series covers this need: the MUJ46 delivers 1.5A continuous / 2A maximum 12V DC output alongside dual 5V/3A USB-A and USB-C outputs, within an 18W maximum total output limit and 37.44Wh battery energy—suited for small office/home office setups. The MUJ435 extends battery energy to 50.4Wh while retaining the same 12V DC plus USB-A and USB-C port configuration and 18W system limit.

AC-Input Dual-Device Installations

For installations combining two 12V devices, such as an ONT and router pair, from a single AC wall outlet, the ML1202AC in the AC-Input Dual Output Series accepts 100–240V AC input and provides two 12V DC ports at 2A each (24W total system limit), using LiFePO4 battery chemistry with 25.6Wh of energy—removing the need for an external DC adapter.

Emerging Directions for Modern Equipment

MYLION’s development pipeline also addresses newer device categories. The MUC85, currently in project evaluation, is designed around USB-C PD input (65W standard / 100W max) with two USB-C outputs for WiFi 6/7 devices requiring Power Delivery. The MU248, also under development, targets 24V/48V telecom backup for higher-voltage wireless CPE and radio bridge equipment, with independent 24V (3A) and 48V (1A) outputs and a 100W total system limit.

Supporting Accurate Selection Through Technical Validation

Because improper matching of voltage, current, or connectors is the primary risk in this category, MYLION positions itself as a B2B backup power partner and OEM/ODM project partner rather than a simple component supplier. Its service scope includes requirement analysis, model matching, sample testing support, connector/cable matching, private labeling, and documentation coordination, supported by 13+ years of experience in lithium battery technology and 10+ years of experience in Mini UPS development. Products across the range carry model-specific UN38.3 and MSDS certifications relevant to lithium battery transport and compliance documentation.

Conclusion

Choosing the correct Mini UPS capacity for a router or ONT ultimately depends on matching continuous current, maximum current, voltage, connector type, and battery energy to the specific device’s real-world behavior—not simply selecting the highest wattage available. MYLION’s structured product range, spanning standard, long-runtime, high-power, multi-output, AC-input, and emerging USB-C PD and 24V/48V directions, reflects this evaluation-based approach, supported by technical confirmation processes designed to reduce avoidable selection errors for telecom operators, ISPs, broadband network companies, fiber network operators, and system integrators.

http://www.myliontech.com
Shanghai Mylion New Energy Co.,Ltd.

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