element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • Community Hub
    Community Hub
    • What's New on element14
    • Feedback and Support
    • Benefits of Membership
    • Personal Blogs
    • Members Area
    • Achievement Levels
  • Learn
    Learn
    • Ask an Expert
    • eBooks
    • element14 presents
    • Learning Center
    • Tech Spotlight
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents Projects
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Avnet & Tria Boards Community
    • Dev Tools
    • Manufacturers
    • Multicomp Pro
    • Product Groups
    • Raspberry Pi
    • RoadTests & Reviews
  • About Us
    About the element14 Community
  • Store
    Store
    • Visit Your Store
    • Choose another store...
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      •  Japan
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      •  Vietnam
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
  • Settings
Raspberry Pi
  • Products
  • More
Raspberry Pi
Raspberry Pi Forum Battery Question, will I burn my face off?
  • Blog
  • Forum
  • Documents
  • Quiz
  • Events
  • Polls
  • Files
  • Members
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
Join Raspberry Pi to participate - click to join for free!
Featured Articles
Announcing Pi
Technical Specifications
Raspberry Pi FAQs
Win a Pi
Raspberry Pi Wishlist
Actions
  • Share
  • More
  • Cancel
Forum Thread Details
  • Replies 16 replies
  • Subscribers 687 subscribers
  • Views 1839 views
  • Users 0 members are here
  • raspberry_pi
Related

Battery Question, will I burn my face off?

larisbird
larisbird over 11 years ago
I'm trying to expand capacity for a Duracell power bank (3.7v 2600 mAh) so I can power my portable RasPi project with it.  I've taken a battery (3.7v 2800 mAH) from a cheap tablet and I'm wondering if I just connect the negative of the Duracell to the positive of the Tablet battery then take the negative of the Tablet battery and connect it back to the board of the Duracell power bank, if it will increase the capacity of the power bank and function normally or will it blow up in my face melting it Raiders of Lost Ark style?
I'm a novice hobbyist and any pointers would be a huge help.
A little more detail about my project: I'm installing a RasPi with RetroPie into an Original Gameboy case for a pretty cool emulator.  I've found a step up chip to power the new display but have run into the issue of portable power.  I'd like a little more capacity than the batteries that I've seen Ben Heck and others use.
Thanks for your time and I hope to hear from anyone
Attachments:
image
image
image
  • Sign in to reply
  • Cancel
Parents
  • alexev
    alexev over 11 years ago

    You should never mix bateries of diferent types and loads, that's the rule of thumb. Battery science is more complicated than anyone would guess. Have a look in here: Battery Information Table of Contents, Basic to Advanced

    P.S.-never try to physically cut, bend, burn, overheat, hammer, stab or destroy a li-po battery - unless you have a controlled environment - it will either explode or burn violently in an instant - personal experiment. Have luck!

    • Cancel
    • Vote Up +1 Vote Down
    • Sign in to reply
    • Cancel
Reply
  • alexev
    alexev over 11 years ago

    You should never mix bateries of diferent types and loads, that's the rule of thumb. Battery science is more complicated than anyone would guess. Have a look in here: Battery Information Table of Contents, Basic to Advanced

    P.S.-never try to physically cut, bend, burn, overheat, hammer, stab or destroy a li-po battery - unless you have a controlled environment - it will either explode or burn violently in an instant - personal experiment. Have luck!

    • Cancel
    • Vote Up +1 Vote Down
    • Sign in to reply
    • Cancel
Children
No Data
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2026 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube