Batteries

Batteries and power supply

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Home : Technical Reference : Batteries

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    • Duracell DR36 battery to the FT 817 - The Duracell DR 36 laptop battery can be easily find and supplies 12 volts X 4 amperes. The main advantages on this system are, the weight, size, quick battery changing and no stress to the FT 817 power connector by PY1AHD
    • Constant Current Battery Charger - Constant Current Battery Charger circuit project
    • Battery Equivalents - Cross reference thousands of consumer, watch and Amateur Radio Handheld batteries
    • The Great Battery Shootout - Review of the great battery shootout
    • Alternators & Batteries - Influence of batteries on RFI and noise generation by k0bg
    • Build a simple rechargeable CMOS Battery - An inexpensive rechargeable CMOS battery system that can be built from readily available parts.
    • Car and Deep Cycle Battery FAQs - Car and deep cycle battery answers to Frequently Asked Questions (FAQs), tips, manufacturer's information, references and hyperlinks are contained on this consumer oriented Web site about car, motorcycle, power sports, truck, boat, marine, recreational vehicle, solar, and other starting and deep cycle applications.
    • AA Battery Solar Charger - This almost trivial circuit may be used to charge a pair of AA or AAA sized rechargeable battery cells from sunlight.
    • 9v Battery Charger - Improved 9.6V compact fast charger project by AD5X
      [ Hits: 213 | Votes: 1 | Rating: 2.00 ]
    • A battery review for the IC-R10 - Review of the icom ic-r10
      [ Hits: 328 | Votes: 2 | Rating: 9.00 ]
    • A Precision Voltage Reference - A project by Don Wilhelm W3FPR
      [ Hits: 148 | Votes: 0 | Rating: 0.00 ]
    • AA Battery Solar Charger - This almost trivial circuit may be used to charge a pair of AA or AAA sized rechargeable battery cells from sunlight.
      [ Hits: 615 | Votes: 0 | Rating: 0.00 ]
    • Alkaline Battery Comparisons
      [ Hits: 589 | Votes: 4 | Rating: 3.25 ]
    • Alternators & Batteries - Influence of batteries on RFI and noise generation by k0bg
      [ Hits: 898 | Votes: 1 | Rating: 10.00 ]
    • ARRLWeb: Batteries - ARRL web batteries articles and web links
      [ Hits: 386 | Votes: 1 | Rating: 10.00 ]
    • Avoid pitfalls when recharging batteries to ensure long life - Portable design - avoid pitfalls when recharging batteries to ensure long life - secondary batteries can be simple devices, but improper charging can be devastating to the user experience.
      [ Hits: 422 | Votes: 2 | Rating: 5.50 ]
    • Batteries - some thoughts - What sort of batteries when operating mobile, choosing proper battery technology
      [ Hits: 284 | Votes: 1 | Rating: 5.00 ]
    • Batteries and QRP - Thanks to the popularity of cell phones, laptops and other personal electronic devices, the battery industry has been market-driven to produce higher capacity batteries in lighter weights than previously possible with yesterday's chemistries.As a result, a wide variety of battery types are available to the outdoor QRP operator.
      [ Hits: 342 | Votes: 0 | Rating: 0.00 ]
    • Batteries for Emergency Communications - The purpose of this paper is to provide a basic understanding of the different types of batteries available on the market today so the reader can make an educated decision about what type of battery will best meet their needs for Amateur Radio emergency communications Brett Hammond - KB3HGP
      [ Hits: 292 | Votes: 1 | Rating: 1.00 ]
    • Battery Articles - A collection of battery questions and the replys from Red Scholefield, a battery engineer.
      [ Hits: 150 | Votes: 0 | Rating: 0.00 ]
    • Battery Comparisons in QRP Applications - AE5X battery comparison
      [ Hits: 142 | Votes: 1 | Rating: 4.00 ]
    • Battery Equivalents - Cross reference thousands of consumer, watch and Amateur Radio Handheld batteries
      [ Hits: 1885 | Votes: 16 | Rating: 4.00 ]
    • Battery FAQ - Battery wholesale battery faq, frequently asked questions about batteries
      [ Hits: 366 | Votes: 1 | Rating: 10.00 ]
    • Battery Monitor project  new - Original battery monitor project by Derek Toeppen, WA0ZTI
      [ Hits: 90 | Votes: 0 | Rating: 0.00 ]
    • Battery University - On-line resource that provides practical battery knowledge for engineers, educators, students and battery users alike. The papers address battery chemistries, best battery choices and ways to make your battery last longer.
      [ Hits: 515 | Votes: 3 | Rating: 9.00 ]
    • Battery voltage booster - A battery voltage booster project with pictures and schematic by KD7W
      [ Hits: 411 | Votes: 1 | Rating: 9.00 ]
    • Build a simple rechargeable CMOS Battery - An inexpensive rechargeable CMOS battery system that can be built from readily available parts.
      [ Hits: 658 | Votes: 4 | Rating: 5.75 ]
    • Building a portable 12 Volt DC power source - Project with pictures and descriptions for building a portable 12 Volt DC power source by N1KXR.
      [ Hits: 311 | Votes: 2 | Rating: 9.50 ]
    • Car and Deep Cycle Battery FAQ - Battery consumer information and answers to frequently asked questions (faq) about car and deep cycle batteries.
      [ Hits: 169 | Votes: 1 | Rating: 10.00 ]
    • Car and Deep Cycle Battery FAQs - Car and deep cycle battery answers to Frequently Asked Questions (FAQs), tips, manufacturer's information, references and hyperlinks are contained on this consumer oriented Web site about car, motorcycle, power sports, truck, boat, marine, recreational vehicle, solar, and other starting and deep cycle applications.
      [ Hits: 649 | Votes: 2 | Rating: 7.50 ]
    • Change Battery on DVS-2 - The DVS-2 is a CQ unit for the Yaesu Trancievers.
      [ Hits: 335 | Votes: 0 | Rating: 0.00 ]
    • Constant Current Battery Charger - Constant Current Battery Charger circuit project
      [ Hits: 2266 | Votes: 6 | Rating: 4.00 ]
    • Duracell DR36 battery to the FT 817 - The Duracell DR 36 laptop battery can be easily find and supplies 12 volts X 4 amperes. The main advantages on this system are, the weight, size, quick battery changing and no stress to the FT 817 power connector by PY1AHD
      [ Hits: 2419 | Votes: 7 | Rating: 3.29 ]
    • Eneloop batteries for QRP - Sanyo Eneloop rechargeable AA batteries. For QRP purposes, these batteries are great as a 10-cell pack
      [ Hits: 173 | Votes: 0 | Rating: 0.00 ]
    • Fuse Those Batteries - The proper way to fuse the 12 VDC power cable between a battery and a mobile radio.
      [ Hits: 266 | Votes: 0 | Rating: 0.00 ]
    • Home Brew 9 Volt Battery Clip - Make your own battery clip by nj2x
      [ Hits: 195 | Votes: 4 | Rating: 8.50 ]
    • Lead Acid Batteries - An interesting article on lead acid batteries by G8MNY
      [ Hits: 166 | Votes: 0 | Rating: 0.00 ]
    • Nicad Charger for car - A Nicad charger from the car battery by DL6NEE
      [ Hits: 245 | Votes: 0 | Rating: 0.00 ]
    • Rechargable Battery Information - All you need to know to keep your batteries fit and well!
      [ Hits: 169 | Votes: 0 | Rating: 0.00 ]
    • Rechargeable Battery Review - Rechargeable Battery Comparisons
      [ Hits: 189 | Votes: 0 | Rating: 0.00 ]
    • Rechargeable Li-Pos batteries - About Lithium-Polymer batteries for QRP operations
      [ Hits: 149 | Votes: 0 | Rating: 0.00 ]
    • Recovering old NICAD and NMHI Cells - Old Nicads batteries and sometimes NMHI batteries usually end up with several cells being short circuit, as they suffer from crystal growth in the electrolyte
      [ Hits: 184 | Votes: 2 | Rating: 2.50 ]
    • Super Walk-a-thon Portable Radio - How to make your HT last for days and get out like crazy
      [ Hits: 208 | Votes: 0 | Rating: 0.00 ]
    • Technical resources for design engineers using batteries and power supplies. - Resources for custom battery chargers and power supplies from powerstream
      [ Hits: 444 | Votes: 1 | Rating: 10.00 ]
    • The Great Battery Shootout - Review of the great battery shootout
      [ Hits: 1041 | Votes: 2 | Rating: 5.50 ]
    • Using Batteries - Batteries in fact and fiction. Batteries, Cells,Chemistry, Math and Radios
      [ Hits: 235 | Votes: 0 | Rating: 0.00 ]
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