UPS / Battery Charger for ADSL


#1

I am using my laptop for most of the time these days due to the increased load shedding and tripping from KESC. The only problem I am facing is the unavailability of Internet when power goes down.

What is the best option to get my ADSL modem running at the time of load shedding / tripping? Any cheaper solution which is suitable for powering just the Zyxel modem from Maxcom for two hours max?


#2

Does it take 12V DC? If so, connect it directly o a 12V battery of appropriate capacity. Be careful the battery is not discharged to below 11V.


#3

I believe it does take 12V DC using adapter. Can I find any ready made circuit with motorbike battery which can be used easily to power the modem automatically when the electricity goes down?


#4

Don't believe. Confirm the output specs from the adapter. Also confirm the current rating.


#5

dont ever forget to check the current-rating!!!!


#6

i am also interested in doing some thing similar with my USR robotics Wifi ADSL modem.

details on its power adapter:

Input:230V~ 50Hz 140mA

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Output: 9V --- 1.2A

What option do i have,i don't mind even a manual setup like battery charger and inverter.

car batteries are 12V ,motorbike batteries are also 12V?