Top critical review
Work around required to connect only low power consuming devices
29 August 2018
I purchased this UPS to connect only WiFi Router- approximately 25 Watts, as I needed continuity in internet connectivity.
When I opened the box, I was amazed to see that user manual was not there in the box. Vguard Customer Care informed that user manual is not given with this model.
I was advised to initially charge for 10-12 Hrs.
I charged for 13 hours and when connected my router to the UPS and switched off the regular power to check the backup, I found that the UPS switches off in less than 5 minutes, despite claims from the company, that the backup would be 10-15 minutes with computer with 43 cm screen and a printer, (Approx load in my knowledge, around 150 Watts)
This happened twice so I registered a service request with Vguard. First the technician couldnt locate the issue but when he contacted his senior, the latter asked him to remove the "Resistance" to solve the issue, which happened indeed.
I tried first only with my router and found that the UPS was going strong even after 12 minutes now. Then I connected my laptop (120 Watts) and the UPS still had juice even after 23 minutes on battery.
When I asked the logic of the same to the senior technician, he said , the UPS is designed to work on a standard minimum load, since in my case the load was only 25 Watts (too less) so the UPS was not detecting the load and hence due to the auto cut off feature, it was getting switched off within 5 minutes.
To solve this, the resistance was removed. Though now the UPS would not auto cut off when there is no load connected but seems to be working fine for now.
In case you face the same problem, call the service center, register a service request. Most probably the technician will remove the resistance and then the UPS should work fine.
There is no problem with the UPS, it is just that this switching off seems to be happening because of the Auto cut off feature in this UPS