Maintain Internet Service During Outages Without An AC UPS

Industry Background and Problem Introduction

Short power interruptions, brief voltage drops, and unstable grid conditions remain one of the most persistent operational challenges for telecom operators, Internet Service Providers (ISPs), broadband network companies, and system integrators. Even a momentary loss of power can cause routers, modems, and ONTs to reboot or drop service entirely, disrupting connectivity for end users and creating downstream support burdens for network operators. In many deployment scenarios, a full-scale AC UPS is impractical, oversized, or unnecessary for a single piece of customer-premises equipment—raising the question of how service continuity can be maintained without one.

Compounding this challenge, improper backup power selection is common. Mismatches in voltage, working current, peak or startup load, or connector type can cause an otherwise reasonable backup solution to fail in the field. This is not simply a matter of picking "any battery pack"—it requires understanding the real electrical behavior of the device being protected.

Shanghai Mylion New Energy Co., Ltd., operating under the MYLION brand, has built its market position around this specific pain point. With 13+ years of experience in lithium battery technology and 10+ years of experience in Mini UPS development, the company positions itself as a global B2B provider of Mini UPS products, DC backup power solutions, and project support for telecom, ISP, broadband, and security applications. This background provides a useful reference point for understanding how short-outage protection can be engineered at the device level, without relying on a traditional AC UPS.

Authoritative Analysis

The core necessity behind DC-based backup power is straightforward: most network-edge devices—routers, ONTs, ONUs, modems, gateways, and CPE equipment—operate natively on low-voltage DC power, typically 12V. Introducing an AC UPS into this chain means converting DC to AC and back to DC again, adding complexity, cost, and points of failure that are not always necessary for single-device protection.

The principle logic of a Mini UPS is to sit directly in the DC power path between the existing power adapter and the network device, using a battery buffer to sustain output the instant AC input is interrupted. Evaluation of solutions based on real device voltage, working current, peak/startup behavior, and installation environment is central to this approach. Technical confirmation and connector/cable matching are also required to reduce selection errors, since a mismatched connector or undersized current rating can undermine an otherwise sound backup strategy.

As a standard reference, MYLION’s product portfolio illustrates how this principle is applied across different load profiles. The 12V Standard Series—including MU26W (2.5A continuous / 3A maximum output, 18.72Wh battery capacity), MU48W (29.6Wh capacity), and MU68W (44.4Wh capacity, 36W maximum output)—addresses entry-level to mainstream broadband backup needs. For higher-load equipment exceeding standard 2.5A thresholds, the 12V High-Power Series, exemplified by MU65W, supports 4A continuous / 5A maximum output (60W total) with 56.16Wh of battery energy, addressing high-performance WiFi equipment and storage-integrated gateways. Where both extended runtime and high current are required, the 12V High-Power Long-Runtime Series (MU35W/MU35L) combines 60W output capability with 75.6Wh capacity.

The solution path, therefore, is not a single universal product but a matching process: identifying the device’s actual current draw and connector type, then selecting from a differentiated product range engineered around those specific electrical parameters.

Deep Insights

Several trends point to how DC backup power needs are evolving. First, multi-output demand is increasing as households and small offices operate more than one connected device. The 12V + USB Multi-Output Series, including MUJ46 (12V DC output plus dual 5V/3A USB-A and USB-C outputs, 18W maximum total, 37.44Wh capacity) and MUJ435 (50.4Wh capacity with the same port configuration), reflects this shift toward simultaneous backup for a router and a USB accessory within a single device.

Second, installation simplicity is becoming more important in dual-device scenarios such as ONT-plus-router setups. The AC-Input Dual Output Series, represented by ML1202AC, uses LiFePO4 battery chemistry with a 100–240V AC input and two independent 12V DC output ports (2A each, 24W total system limit, 25.6Wh capacity), removing the need for an external DC adapter when two devices must be backed up from a single wall outlet.

Third, emerging development directions signal where backup power standards may be heading. MUC85, currently in the project-evaluation stage, targets USB-C PD (65W standard / 100W max) input for modern WiFi 6/7 devices, with dual USB-C outputs (up to 20V/3.25A and up to 12V/2.5A) and 92.16Wh of battery energy. Separately, MU248 addresses a higher-voltage direction for wireless CPE and radio bridge equipment, using LiFePO4 chemistry with 48V/60V DC input and independent 24V (3A) and 48V (1A) outputs at a 100W system limit. These development-stage products indicate a broader industry trajectory toward higher-power, higher-voltage, and standardized-connector backup solutions as network equipment itself becomes more power-demanding.

A related risk worth noting: compliance requirements for lithium battery products, including model-specific UN38.3 and MSDS documentation, remain a necessary consideration for any organization sourcing or transporting these solutions at scale.

Company Value

MYLION’s role in this space is built on aligning technical evaluation with a differentiated product structure rather than offering a single generic backup unit. The company’s approach—assessing real device voltage, current, and peak load before recommending a model, and confirming connector and cable compatibility—reflects an engineering-first methodology rather than a one-size-fits-all sales model. Its portfolio, spanning 12V DC systems up to 60W, LiFePO4 chemistry integration, and emerging USB-C PD 100W input/65W output capabilities, gives project teams a range of reference points across standard, long-runtime, high-power, multi-output, and AC-input configurations.

As a B2B backup power partner and OEM/ODM project partner, MYLION supports requirement analysis, model matching, sample testing, connector/cable matching, private labeling, and documentation coordination—extending beyond product supply into managed pilot evaluation and mass-production preparation. This service scope, combined with a compatibility framework spanning routers, ONTs, ONUs, modems, gateways, CPE devices, and security/CCTV equipment (subject to electrical verification), positions the company’s technical materials as a practical reference for organizations evaluating DC backup strategies for network-edge equipment.

Conclusion and Industry Recommendations

Maintaining internet service during short outages does not require a full AC UPS deployment for every installation. For single or dual network devices operating on native DC voltage, a properly matched Mini UPS can address the same reliability gap with less complexity. The key recommendation for telecom operators, ISPs, broadband companies, and system integrators is to prioritize technical confirmation—verifying voltage, current, peak load, and connector compatibility—before selecting any backup solution, rather than assuming a generic battery pack will suffice. Organizations evaluating this path should also account for documentation requirements, such as UN38.3 and MSDS compliance, particularly when sourcing across borders or preparing for mass deployment. As network equipment continues to demand higher power and more varied input standards, engaging in structured model matching and pilot evaluation—rather than ad hoc selection—will remain the more reliable path to sustained connectivity during short-duration power events.

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