Battery

A LiFePO4 battery box build project made with 25Ah 3 2V LiFePO4 prismatic cells 40A ...

Improved 9.6V compact fast charger project by AD5X

A discharge circuit which you could use to cycle the batteries

Primary Ion and Polymer a lithium battery primer learn the differences between and varied uses ...

A project by Don Wilhelm W3FPR

This almost trivial circuit may be used to charge a pair of AA or AAA ...

Influence of batteries on RFI and noise generation by k0bg

ARRL web batteries articles and web links

One way to keep your home station on the air during a power outage ...

What sort of batteries when operating mobile, choosing proper battery technology

Thanks to the popularity of cell phones laptops and other personal electronic devices the battery ...

The purpose of this paper is to provide a basic understanding of the different types ...

An interesting article on choosing the right battery when operating in portable mode considering charging ...

Batteries for portable radio operation are always an interesting subject for discussion Review of some ...

AE5X battery comparison

Original battery monitor project by Derek Toeppen

On line resource that provides practical battery knowledge for engineers educators students and battery users ...

A free educational website offering hands on battery information The tutorials evaluate the advantages and ...

A battery voltage booster project with pictures and schematic by KD7W

An inexpensive rechargeable CMOS battery system that can be built from readily available parts ...

Homebrew a custom lithium battery pack with 5s3p batteries

Project with pictures and descriptions for building a portable 12 Volt DC power source by ...

How to do a capacity check on your battery pack Videos demonstrate how to test ...

Battery consumer information and answers to frequently asked questions faq about car and deep cycle ...

The DVS-2 is a CQ unit for the Yaesu Trancievers.

This tutorial demonstrates how to charge laptops or tablets like the Microsoft Surface using off ...

An interesting article about a homemade LiFePO4 battery pack for ham radio operations a 10Ah ...

The Duracell DR 36 laptop battery can be easily find and supplies 12 volts X ...

Sanyo Eneloop rechargeable AA batteries For QRP purposes these batteries are great as a 10 ...

Make your own battery clip by nj2x

Using portable battery power is always a challange when operatin amateur radio in sota oprations ...

An article in Finnish on LiPos in the FT 897 ad alternative to FNB 78 ...

A Nicad charger from the car battery by DL6NEE

About Lithium-Polymer batteries for QRP operations

After a few years the lithium battery cell from the Yaesu DVS 2 will be ...

Turning an RV marine battery into a massive 12-volt emergency power source

How to make your HT last for days and get out like crazy

Resources for custom battery chargers and power supplies from powerstream

Review of the great battery shootout

The article highlights the common absence of modern USB C ports on handheld ham radios ...

Batteries in fact and fiction. Batteries, Cells,Chemistry, Math and Radios