Gain Rechargeable power souce 30W 12V 3A mini ups battery backup uninterruptible power supply for mini PC computer and DVR recorder-in Uninterrupted Power Supply from Home Improvement on AliExpress save

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Rechargeable power souce 30W 12V 3A mini ups battery backup uninterruptible power supply for mini PC computer



Brief  Introduction


  • 12V dc ups is a DC uninterruptible power supply which can store the power.

  • it is designed to provide emergency power backup to all kinds of DC power devices- such as routers, modems, small laptop,set-top boxes, VOIP phone systems, surveillance systems, alarm systems and many critical telecom equipments.


  • It can provide hours of operation during power failure at a low price vs a traditional UPS.

  • This is an on-line uninterruptible storage power supply. UPS interior adopts the safe and environmental 18650 lithium cells,the professional IC,smart charging BMS IC, The circuit adopts hardware and software etc multi-protective function steps, it has completed over-charged,over-discharged,over-current,short-circuit etc protective function.

  • The ups could be automatically adjusts the charging current which based on the external adapter input voltage changeful.

  • The rated output is 12V 3.0A, the max output could be 12V 3.2A, The over-current protection is 3.2A~5.5A. 





Input  12V +/-5% 
Output 12V +/-5% 
Output Power 30W
Battery Type 18650 li-ion battery cells
Capacity Of Battery 4*2000mAh cells
Rated charge current 12V 3A
Rated discharge current 12V 3A
Protection circuit

over-current, over-charge, over-discharge, short-circuit protection

Working Temperature -20 Celsius - 65 Celsius 
Input Jack female 5.5*2.1mm  
Output connector male 5.5*2.1mm 
Net Weight 257g
Volume 138*60*24mm



1.We have variety models suitable for different device.

2.We're happy to assist you to get the most suitable model,welcome your inquiry.

3.DC size can be customized.


intelligence designproduct insideoperation guidechoose adaptorfor free


»» Why should choose us?


1.Best quality: We have the best professional and experienced engineer and strict QA and QC system. Repair rate under 1%~2%. 


2.Best price: We make the power supply by our own company, so we can control the quality well and reduce the cost to offer competitive price and excellent quality.


3.Great after-sale service: 1 years warranty.


4.Have more than nine years experience,we are more professional for our customer,provide OEM and ODM.


5.Certification: all product are CE/FCC/PSE/ROHS/MSDS certificated.


6.Original: all product are private design, private module.


»» Service?


 24hrs online service available.


»» Quality check?


100% dropping test before shipment.


100%  aging test before shipment.


12months warranty for you.


»» What's the type of ups?


A:It's a mini on-line ups.


»» How is it work?


A:When have electricity,ups act as a bridge, city power provide electric to device,at the same time,ups is being charging.When no electricity,then ups back up the device.


»» How to charge the UPS?


A:Battery will only charge with power switch in the ON position.


»» What's the backup time?How can i decide which model is suitable to my device?


A:Different capacity will have different backup time,with following information,we can choose the most suitable ups to you :

1.What's the device you plan to use?

2.What's the working voltage and current?

3.What's your expected backup time?


»» How can I maintain the device lifetime?


A:When stored, the ups will self-discharge at a rate that is greatly affected by the ambient temperature. It should therefore be fully charged before being put into storage and if it is to be stored for a long period, it should be recharged periodically to prevent it from losing its original capacity. 


As a guide, the ups should not be stored for longer than the periods shown below without being recharged:

6 months at 20°C

3 months at 30°C

2 months at 35°C

If the ups was not used for long time, it is suggested to charge it once every 3~5months


Notice:More questions,please contact with me right now,we will choose the right model to you!







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