Search results

  1. R

    Help needed for electronic calculation

    thank you for your information it was helpful first i got 150 Watt inverter and it exploded after 40 mins of use then i get a 300 Watt inverter and worked normally it covered the 4 hours of electricity cut while i measure the ampere of the inverter output and was 0.5 A which means the power used...
  2. R

    Help needed for electronic calculation

    less efficient you mean battery will last more in your solution which is better than inverter ?
  3. R

    Help needed for electronic calculation

    thank you for your answer i would like to open the modem but really i will not know anything from it inside. so do you guess that 150w inverter will do the job for 4 hours on 120AH battery ? and does 150w enough to run these or i need bigger one ?
  4. R

    Help needed for electronic calculation

    also another question, is it feasible to get DC/AC inverter 150W (300W surge) so can hold all these three devices ?
  5. R

    Help needed for electronic calculation

    so this is for laptop that accept dc what about the adsl modem that needs 15v ac and not dc also did you take into consideration that the charger is always connected to the battery so voltage maybe larger than 12v maybe 13v and sometimes 14v does that affect any of these adapters or the router...
  6. R

    Help needed for electronic calculation

    thanks Steve for your fast reply but is there another solution so i can't find the adapter for my laptop that works on 12v as well i don't want to pay for another modem and adapter ? thank you in advance
  7. R

    Help needed for electronic calculation

    Hello, i have a problem of electricity cut for about 4 hours what i need is to convert 12v dc from a large battery 120AH to get 220 V to cover these 4 hours the usage is - a laptop HP , the adapter need input 220V 1.6A as written on the adapter - wireless router linksys 12v - and adsl...
Top