Modify Phone Battery: Is It Safe?

  • Thread starter Thread starter Stephenk53
  • Start date Start date
  • Tags Tags
    Battery
Join the discussion
Ask a follow-up here, or get your own question answered by working scientists, mathematicians and engineers — people, not an autocomplete.
Real named experts · corrections over time · the nuance an AI answer skips
6 replies · 2K views
Stephenk53
Messages
121
Reaction score
55
I want to modify my phone by using one of the batteries from phones I have stockpiled over the years and wiring them together. I doubt I have a battery that matches the battery my phone has, so I will have to check. Assuming I have the correct battery, is this a good idea?

By the way I have soldered batteries together before but I want to make sure it's fine since my phone is expensive, at least by my standards
 
Engineering news on Phys.org
Stephenk53 said:
I want to modify my phone by using one of the batteries from phones I have stockpiled over the years and wiring them together. I doubt I have a battery that matches the battery my phone has, so I will have to check. Assuming I have the correct battery, is this a good idea?

By the way I have soldered batteries together before but I want to make sure it's fine since my phone is expensive, at least by my standards
Doesn't sound like a good idea. If you are intending to connect the batteries in parallel, that probably will not work. Only batteries with certain chemistries and very similar charge/discharge histories can be paralleled.
 
Do you know how I could check if the batteries have a chemistry that work in parallel? As for charge/discharge histories, could I instead get two new batteries or two equally old batteries and use them instead of my current battery. Again assuming the batteries are the same as the one I currently use
 
Stephenk53 said:
Do you know how I could check if the batteries have a chemistry that work in parallel? As for charge/discharge histories, could I instead get two new batteries or two equally old batteries and use them instead of my current battery. Again assuming the batteries are the same as the one I currently use

I would say the only two batteries that could be successfully paralleled would be if they are the same model and both brand-new. Even then, I would contact the manufacturer to ask if they recommend this.
 
Stephenk53 said:
Do you know how I could check if the batteries have a chemistry that work in parallel? As for charge/discharge histories, could I instead get two new batteries or two equally old batteries and use them instead of my current battery. Again assuming the batteries are the same as the one I currently use
What could possibly go wrong? Go for it!

http://l7.alamy.com/zooms/de6e99f55...burning-phone-in-jeans-back-pocket-eb1pyd.jpg
close-up-of-burning-phone-in-jeans-back-pocket-eb1pyd.jpg
 

Attachments

  • close-up-of-burning-phone-in-jeans-back-pocket-eb1pyd.jpg
    close-up-of-burning-phone-in-jeans-back-pocket-eb1pyd.jpg
    72.4 KB · Views: 499
  • Like
Likes   Reactions: sophiecentaur and dlgoff
Stephenk53 said:
I want to modify my phone by using one of the batteries from phones I have stockpiled over the years and wiring them together.
Care to tell us some phone types?
Sometime it is possible: but in general, it is futile and dangerous. So without any details, it is a big NO-NO.
 
  • Like
Likes   Reactions: sophiecentaur