Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 20 replies
  • Subscribers 32 subscribers
  • Views 3215 views
  • Users 0 members are here
Options
You may also be interested in
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Power bank blowing fuses?

Lisa Miles
Hi all


I have a question I hope some of you might know the answer to.


We've recently moved over from a builders electricity supply to a domestic supply on our new build house in France. The electrics have all been checked out and signed off by the Consuel.


I have a two port USB powerbank manufactured by a well known battery manufacturer (?) and I was trying to charge it up while I was there using a native two pin USB charger plug. It basically fried the charger plug but didn't trip the fuse on the main board... 


I then plugged it in to a four socket extension lead (two pin plug to three pin sockets) using a three pin charger plug I have. It blew the extension lead but again didn't trip the fuse on the main board. 


At first I thought it must be a fault with the powerbank but  when I got back to the UK, I plugged it into my usual charger and it charged up as normal... ??


What do you think the problem could be? 

Parents
  • 0
    Everything points to the fact that the two mains to USB power supplies were not able to supply the current the battery charger demanded.

    If they had been better designed they would have just shut down but cheapness/cost meant there was no mechanism to prevent overloading.

    The overload caused the devices to fail but did not overload the mains supply, so therefore no MCB was tripped.

    At least they failed without bursting into flames and/or tripping the MCB..... there was some inbuilt protection albeit destructive to the devices.

    Cheap USB power supplies differ from one another but the majority are only able to supply a relatively low current, enough to charge the average phone, run a hub and similar low power devices.

    The battery charger is quite a powerful piece of kit and consequently demands a high current particularly if it is discharged.

Reply
  • 0
    Everything points to the fact that the two mains to USB power supplies were not able to supply the current the battery charger demanded.

    If they had been better designed they would have just shut down but cheapness/cost meant there was no mechanism to prevent overloading.

    The overload caused the devices to fail but did not overload the mains supply, so therefore no MCB was tripped.

    At least they failed without bursting into flames and/or tripping the MCB..... there was some inbuilt protection albeit destructive to the devices.

    Cheap USB power supplies differ from one another but the majority are only able to supply a relatively low current, enough to charge the average phone, run a hub and similar low power devices.

    The battery charger is quite a powerful piece of kit and consequently demands a high current particularly if it is discharged.

Children
No Data

Community Rules & Guidelines