Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
fnord

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.

user:
pass:
register,


               

charger safety device

Extra device between charger and battery promises safety
 
(0)
  [vote for,
against]

Just got back from the bike shop, where they fixed my battery and found that a wire inside was burned.

While fixing the battery the electrician told me that one of his clients showed him a battery and charger, and he had found that the charger was not stopping when the battery was already full. He gave him an extra charger, and told him to check it out, because its dangerous. So he should keep an eye on the battery and charger during charging.

The guy left it charging during the night in his store which of course had been burnt down by the morning. This happened two weeks ago.

The store owner (and her insurance company) wants to know that her charger and battery did not cause the damage, and people want their safety and are willing to pay a lot for it.

The following device will sell like hotcakes. One part connects to the battery to identify it, and to confirm that our device is checking the battery's temperature. It also will not start until it can read the batteries voltage output. The identification device will also tell our safety switch device what the expected voltage from the battery should be. According to the current voltage it puts a time limit, as well as an extra reading limit, so that it will stop the electricity to the battery, even if the original charger failed to do so.

A small recording of the last use will be stored in a tiny "black box" safe from fire and water (from the fire extinguishers"). This will be proof to the insurance company that you had used the safety device, and the harm did not come from the charger or battery.

pashute, Sep 21 2014

[link]






       Nothing to do with breaking the knight's fall then?
pertinax, Sep 21 2014
  

       ejection saddle. hmm... :)
FlyingToaster, Sep 21 2014
  

       a. Find a fire insurance company willing to fund the development of the device.   

       B. Redesign chargers and batteries so they fail softly. ( They house design electric meters so they can only slow or stop. So it is doable. )   

       c. nothing else comes to mind
popbottle, Sep 22 2014
  

       If the correct equipment is used and proper procedure (i.e. instructions) is followed, this shouldn't happen. Sounds to me like there was either a faulty electrical system involved, the wrong charger was used, and/or conventional lead-acid batteries were charged indoors (they should only be charged outdoors with adequate ventilation to prevent buildup of flammable/explosive gases)...something's fishy here.
Spacecoyote, Sep 22 2014
  

       Li-ion batteries can explode and burn spectacularly, if mistreated, MUHWHAHAHA !   

       Ahem.
8th of 7, Sep 22 2014
  

       We're talking about Li-Ion. Nothing suspicious.   

       The device can be moderated to serve a knight's saddle. Upon explosion the observers may ask: "Why is this knight different from all other knights".
pashute, Sep 22 2014
  

       [pashute] - what kind of bike?
normzone, Sep 22 2014
  
      
[annotate]
  


 

back: main index

business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle