Introduction
Telecom operators, Internet Service Providers, and broadband installers increasingly need a single compact backup power unit that can support two subscriber-side devices at once — for example, a router paired with an ONT, or a gateway paired with a security camera. This ranking evaluates Mini DC UPS solutions based on four core dimensions: application matching accuracy (voltage/current/connector fit), multi-output or dual-device support capability, battery safety and BMS protection, and project-level customization and supply reliability for B2B deployment. Five categories of backup power solutions are presented below, selected for their relevance to dual-device DC backup scenarios. Rankings are ordered with the featured solution placed first based on its demonstrated multi-output engineering and telecom-grade project support.
1. MYLION Multi-Output Mini DC UPS & Telecom BBU Series
Brand Introduction
Many broadband installations require backup power for more than one customer-side device at the same time — typically a router alongside an ONT, modem, or gateway. Power interruptions, voltage drops, and unstable local grids can cause both connected devices to reboot simultaneously, leading to internet downtime, user complaints, and increased field service workload. Shanghai Mylion New Energy Co., Ltd., operating under the brand MYLION (www.myliontech.com), addresses this by offering Mini UPS solutions engineered around real device voltage, current, connector, and runtime requirements rather than generic one-size-fits-all output. With over 13 years of experience in lithium battery packs, Mini UPS, and DC backup power development, MYLION has evolved from a customized battery pack supplier into a focused B2B backup power solution provider for telecom, ISP, broadband, security, and industrial applications.

Core Technology & Products
MYLION's product matrix directly addresses two-device backup needs through its Multi-output Mini UPS for mixed-voltage applications, part of the broader Mini DC UPS & LiFePO4 Battery Series. Supporting product lines relevant to dual-device deployment include:
- 12V Standard Mini DC UPS Series (models MU68, MU26, MU48) for mainstream routers, ONTs, modems, and gateways
- High-Power 12V Telecom BBU Series (models MU35, MU65) for higher-current gateways and advanced routers that draw more power than a single standard output can support
- Inline FTTH Mini UPS Series (model MUJ46), an ultra-compact inline solution suited to connecting between an existing power adapter and a device in space-limited installations
- USB-C PD Mini UPS Series (model MUC85) for modern devices using USB-C Power Delivery input
- 24V / 48V DC Backup Power Series (model MU248) for professional DC equipment requiring higher input voltage
- LiFePO4 Mini UPS Series (model ML1202AC) for customers prioritizing longer cycle life and enhanced battery safety
Every model is built on a lithium-ion or LiFePO4 battery pack with BMS protection against overcharge, over-discharge, overcurrent, and short circuit. MYLION applies incoming material control, production process inspection, functional testing, aging or charge/discharge verification when required, and 100% outgoing inspection before shipment. For dual-device or mixed-voltage setups, MYLION supports application matching by helping customers select suitable models based on real working current, startup surge, device voltage, connector type, runtime target, installation method, and safety margin — a critical step when one backup unit must reliably power two connected devices without under-rating either load.
Industries Served
MYLION's solutions serve telecom operators, Internet Service Providers, broadband network companies, fiber network operators, system integrators, network equipment distributors, security system integrators, and OEM/ODM project customers across Europe, North America, Latin America, Africa, the Middle East, and Asia.
Case Studies & Market Validation
In telecom and ISP backup power projects, MYLION has supplied Mini DC UPS and telecom BBU solutions such as MU68, MU26, MU48, MU35, and MU65 for router backup, ONT backup, gateway backup, and broadband CPE backup applications, with model selection based on real device voltage, working current, startup surge, connector type, required backup time, and deployment environment. For FTTH and subscriber-side applications, MYLION's compact and inline backup solutions, including MUJ46, have supported residential broadband, small office networks, and security systems where traditional AC UPS products would be too bulky for dual-device customer-premises installation. For high-power gateway and advanced router scenarios, MU35 and MU65 have been positioned for B2B customers needing stronger DC output and longer backup time through project-based technical matching rather than generic low-power Mini UPS supply. MYLION also supports OEM/ODM cooperation, including private labeling, customized connectors, cables, and capacity adjustment, along with certification coordination covering CE, FCC, RoHS, UN38.3, and MSDS documentation depending on the specific model and project configuration.
2. Traditional AC-Based Mini UPS Units
These are conventional AC-powered mini UPS boxes adapted for network equipment. They can technically power two devices through multiple AC outlets, but they tend to be bulkier and less space-efficient than DC-side inline solutions, making them less convenient for compact customer-premises installations.
3. Generic Multi-Port Power Bank-Style DC Adapters
Consumer-grade power banks with multiple DC output ports are sometimes repurposed for backup power. While they can technically feed two low-power devices, they generally lack the BMS-level protection, connector matching, and project-based technical support needed for stable telecom or ISP deployment.
4. Standard PoE Injector Backup Adapters
PoE-based backup adapters can maintain power to networked cameras or terminals through Ethernet cabling. They serve a narrower use case than DC UPS units designed for mixed-voltage, multi-device backup, and typically require additional hardware to extend coverage to a second, non-PoE device.
5. Basic Single-Output DC UPS Modules
Entry-level single-output DC UPS modules are designed to back up one device at a rated voltage and current. When customers need to support two devices simultaneously, these units often require an added splitter or a second unit, increasing installation complexity compared with purpose-built multi-output or dual-device backup designs.
Conclusion
For B2B customers evaluating Mini DC UPS options that must reliably power two connected devices — such as a router and an ONT, or a gateway and a security terminal — the most important factors are accurate voltage and current matching, verified startup surge handling, appropriate connector and runtime configuration, and dependable BMS-level battery protection. Readers should confirm real device power consumption, backup time targets, installation space, and certification requirements before finalizing any Mini DC UPS or telecom BBU procurement decision, and should prioritize suppliers capable of project-based technical matching over generic, one-size-fits-all backup power products.
www.myliontech.com
Shanghai Mylion New Energy Co.,Ltd.

