- UEI: Z66VQCUPCGL3 CAGE: 9UK94
- +1 844-539-2555
- Sales@NationalBatterySupply.com

12V Mini UPS Battery Backup for Wi-Fi & IoT Devices
$58.99
- Model: NBS-MU26
- Output: 12V 3A
- Battery: 19.24Wh lithium-ion
- Input voltage: DC 12V
- Input current: DC 3.5A
- Case dimensions: 112 x 70 x 60mm
- Weight: 235g
- FREE FAST SHIPPING
- 2 YEAR WARRANTY
Reliable Backup for Short, Frequent Outages
For many ONT, ONU, router and modem setups, the real problem isn’t long-duration outages, it’s the internet dropping every time there’s a short, frequent power cut. Even a brief interruption breaks home and small office connectivity, and most projects don’t need an oversized backup system to solve that. The NBS-MU26 is a compact 12V 3A mini UPS built for exactly this gap, switching to battery automatically with zero transfer time so devices stay online without a reboot.
A Compact 12V 3A Backup Solution
The NBS-MU26 is designed for low-to-medium power broadband devices such as ONT, ONU, router, modem and selected CPE equipment. Setup is plug and play: connect the 12V adapter to the input port, plug your device into the output port, and flip the switch. The case measures 112 x 70 x 60mm and weighs just 235g, light enough to deploy quickly behind a router or in a small equipment cabinet.
Backup Time for Short-Outage Protection
The 19.24Wh battery holds approximately 4 to 5 hours at a light 6W load, 2 to 3 hours at a 12W load, and 1 to 1.5 hours at 18W. It’s built for customers who need compact, short-duration backup rather than oversized power capacity.
Compatible Devices
- ONT and ONU backup
- Router and modem backup
- Low-power CPE backup
- FTTH subscriber-side backup
- Home broadband and small office network backup
Key Features
- Compact 12V 3A mini UPS for standard broadband devices
- Approx. 2 to 3 hours backup at a 12W load
- Suitable for ONT, ONU, router, modem and low-power CPE backup
- Anti-fire ABS housing for safer daily standby use
- Lightweight and easy to deploy
- Export-ready certifications for project evaluation
Reliable Production for Daily Backup Use
Even for a compact, standard model, consistency matters for daily standby use. The NBS-MU26 goes through 100% full inspection before shipment, along with electrical and functional verification, to keep production quality stable and suitable for project evaluation and export supply.
Looking for a Compact 12V Mini UPS?
The NBS-MU26 covers the short, everyday outages that actually interrupt home and small office connectivity, without the size or cost of a larger backup system. It’s ready to deploy across ONT, ONU, router and modem setups in FTTH, home network and small office environments.
In Stock & Ready to Ship – Order Now for Reliable Backup Power.
Need more options? Explore our full line of Mini UPS products »
What kind of devices is the NBS-MU26 suitable for?
Standard 12V low-to-medium power devices such as ONT, ONU, router, modem and selected low-power CPE equipment.
What kind of devices is the NBS-MU26 suitable for?
Approximately 2 to 3 hours at a 12W load, longer at lighter loads. Actual runtime depends on the connected device’s power consumption
Is the NBS-MU26 suitable for long outage protection?
It’s built mainly for short outage backup and standard daily broadband protection, not extended outages. Higher-capacity models are a better fit for longer runtime needs.
Related products
- Massive energy for all devices: with a capacity of 60,000 mAh (192 Wh)
- Charge multiple devices simultaneously
- Sustainable solar charging
- Compact and travel-friendly design
- Durable LiFePO4 Battery
- Battery: LiFePO4
- Capacity:1024Wh
- Output power:1800W
- Output: USB*4 Type C*2;AC*2;DC*2
- cigarette lighter*1
- XT60(Solar Input port)*1
- Charging :Solar/AC/Carcharging
- Plugs & Outlets: EU/UK//AU/US etc
- Dimension:447*234*219(mm)
- Weight:13.5KG
- Equipped with a powerful capacity
- Powerful output power.
- Lithium Iron Phosphate (Li-FePO4) battery with a service life of more than 3,000 cycles.
- USB-C sockets and 10 output ports.
- AC Voltage Charging in Just 1 Hour
- It can be charged by solar, AC, vehicle network and generator.
- Model: NBS-UPS1202AC
- Input: AC 100-240V, 50/60Hz
- Output: Dual 12V DC, 2A Max (2 ports)
- Battery: 25.6Wh LiFePO4
- Case dimensions: 126 x 80 x 42mm
- Weight: 246g
- Model: NBS-UPS35W
- Output: 12V 5A
- Battery: 77.7Wh lithium-ion
- Input voltage: DC 12V
- Input current: DC 6A
- Case dimensions: 100 x 100 x 60mm
- Weight: 490g
- Model: NBS-UPS65
- Output: 12V 5A
- Battery: 57.72Wh lithium-ion
- Input voltage: DC 12V
- Input current: DC 6A
- Case dimensions: 100 x 100 x 60mm
- Weight: 490g
- Rated power: 100 W
- Open circuit voltage: 24 V
- Maximum operating voltage: 20 V
- Maximum operating current: 5A
- Front material: ETFE with frosted surface
- Conversion efficiency>=23.7%
- Monocrystalline silicon solar panel
- Frosted EVA/ETFE packaging process
- Waterproof polyester fabric
- Intelligent charging chip
- Resistant to high temperatures
- Lightweight and foldable
- Folded life >=50,000times
- 1 year warranty
- Model: NBS-UPS05W
- Output: 12V 5A
- Battery: 44.4Wh lithium
- Input voltage: DC 12V
- Input current: DC 5.5A Max
- Case dimensions: 100 x 100 x 60mm
- Weight: 490g
Recently Viewed Products
- Full digital control technology
- Output power factor up to 1.0
- LCD display panel
- RS232 communication port
- Intelligent SNMP+USB+EPO+dry contact (optional)
- High power density design
- AC/AC efficiency up to 95%
- ECO function
- Model: NBS-MU26
- Output: 12V 3A
- Battery: 19.24Wh lithium-ion
- Input voltage: DC 12V
- Input current: DC 3.5A
- Case dimensions: 112 x 70 x 60mm
- Weight: 235g

National Battery Supply is a reputable manufacturer specializing in custom battery solutions. With over 20 years of experience, we can manage all your power needs.
Batteries
Compliance
Copyright 2026 © National Battery Supply | UEI: Z66VQCUPCGL3 CAGE: 9UK94








