Battery Life Ebooks Catalog

EZ Battery Reconditioning Method

This eBook guide gives you all the information that you need to know to never have to buy batteries again. You will learn what it takes to recondition your batteries that you already have, with things that already have at your house or can easily get. You can save money by never having to buy batteries again But it gets better! You can make huge profits off of selling the batteries that you reconditioned at premium prices. You don't have to have any technical know-how to learn how to do this All it takes is the information in this book! No matter what kind of batteries they are Even if they are car batteries, normal AA batteries, or forklift batteries, you can recondition them like new and sell them at full price or reuse them for yourself! Read more...

EZ Battery Reconditioning Method Summary

Rating:

4.8 stars out of 109 votes

Contents: Ebook
Author: Tom Ericson
Official Website: ezbatteryreconditioning.com
Price: $47.00

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My EZ Battery Reconditioning Method Review

Highly Recommended

Recently several visitors of websites have asked me about this book, which is being promoted quite widely across the Internet. So I bought a copy myself to figure out what all the publicity was about.

All the modules inside this ebook are very detailed and explanatory, there is nothing as comprehensive as this guide.

Battery Reconditioning 4 You

This is a step-by-step guide showing the users how to create their own battery. The E-book was created just to explain and help people out of the problem they face because of the lack of good battery. The guide was made to help the users use about 90% of the tools they have at home to create a battery for themselves and their family. It is a unique concept that can be used in every home. It was created in such a way that it would be a quick fix for their battery problem. In other words, when the users purchase it during the day, the users will be able to make use of it before night falls. The process is so easy that even a little child can fix it up. It will be their guide in building any type of battery- car battery, cell phone battery, laptop battery, drill battery, solar panel battery. The guide is such that comes at a cheap price and would help in the reduction of the amount the users might have to pay for a new battery due to the number of appliances the users will use in their house. Read more...

Battery Reconditioning 4 You Summary

Contents: Ebook
Official Website: www.batteryreconditioning4you.com
Price: $47.00

Recondition Battery Guide

This Do It Yourself Recondition Battery Guide consists of 21 chapters that will show you step-by-step how to recondition your battery. When a healthy battery is recharged, this lead sulfate is converted back to lead and sulfuric acid. But in tired battery, the lead sulfate changes to a crystalline form that coats the batterys lead plates reducing its capacity. This process is known as sulfation. It is a common occurrence in lead-acid batteries and a major reason for their failure. The good news is that you can often reverse sulfation utilizing a specialized high-current, pulse that effectively breaks down the crystalline lead sulfate and turns it back into lead and sulfuric acid, thus cleaning the lead plates and restoring charge capacity. So before you throw that battery away, consider battery reconditioning as a way to save it. Read more...

Recondition Battery Guide Summary

Contents: Ebook
Author: Craig Orell
Price: $47.00

Handle battery packs carefully

This product contains a Li-ion battery. There is a risk of fire and burns if the battery pack is handled improperly. Do not attempt to open or service the battery pack. Do not disassemble, crush, puncture, short external contacts or circuits, dispose of in fire or water, or expose a battery pack to temperatures higher than 60 C (140 F). WARNING Danger of explosion if battery is incorrectly replaced. To reduce risk of fire or burns, do not disassemble, crush, puncture, short external contacts, expose to temperature above 60 C (140 F), or dispose of in fire or water. Replace only with specified batteries. Recycle or dispose of used batteries according to the local regulations or reference guide supplied with your product. Note This product should be operated only with the following designated Battery Pack(s). HTC, Model TWIN160

Ensuring a Seamless User Experience

Persist data between sessions, and when the application isn't visible, suspend tasks that use processor cycles, network bandwidth, or battery life. If your application has processes that need to continue running while your Activities are out of sight, use a Service, but hide these implementation decisions from your users.

The Android Execution Environment

Mobile phones today are very powerful handheld computers, but they are still limited. The fundamental limitation of a mobile device is battery capacity. Every clock tick of the processor, every refresh of memory, every backlit pixel on the user's screen takes energy from the battery. Battery size is limited, and users don't like frequent battery charging. As a result, the computing resources are limited clock rates are in the hundreds of MHz, memory is at best a few gigabytes, data storage is at best a few tens of gigabytes. Throughout this book we will talk about the mechanisms included in Android to optimize for these limited resources.

To limit your data connection to 2G networks

You can extend your battery life by limiting your data connections to 2G networks (GPRS or EDGE). When you are connected to a 2G network, you may want to postpone activities that transmit a lot of data, such as sending, uploading, or downloading pictures or video, until you are connected to a faster mobile or other wireless network.

Designing for Performance

An Android application should be fast. Well, it's probably more accurate to say that it should be efficient. That is, it should execute as efficiently as possible in the mobile device environment, with its limited computing power and data storage, smaller screen, and constrained battery life.

Using Location Based Services

Developers who enable LBS support in applications need to be aware of a number of issues. First and foremost, a user's location is personal information and subject to privacy concerns. Second, using LBS on a handset takes a toll on the device in terms of network data usage and battery life. Handle events such as low-battery warnings and adjust how your application runs accordingly.

Creating a Live Wallpaper

A live wallpaper is similar to an Android Service, but its result is a surface that the host can display. You can create a live wallpaper as complex as you like, but handset responsiveness and battery life should be taken in to account. Some examples of live wallpapers include

International Settings

NOTE APNdroid is a free app that simply turns your data access off by renaming all of your APNs (access point names). This is a simple fix for a vexing problem, and it can even save battery life for times when you're not traveling. Double-check your phone compatibility before installing it. APNdroid does not work with Motorola DROID, and if you choose to uninstall it, make sure you do so when data is enabled, or you'll leave yourself stranded with renamed APNs.

Location Based Services

GPS radios and processors are fairly inexpensive, but still, an increase of even 10 in the bill-of-materials cost of a mobile phone is considerable. Reduced battery life There have been great strides in reducing the power required by GPS radios and processors, but they still suck battery power. Most phones that include GPS also have a feature that lets the user turn it on and off. If your application depends on GPS accuracy, it's good to remember that your application might have to check whether the GPS device is turned on and notify the user if it isn't.

Better Stronger Faster

It might be bad for the immediate user experience, if the list appears to be sluggish. More likely, though, it will be bad due to battery usage every bit of CPU that is used eats up the battery. This is compounded by the extra work the garbage collector needs to do to get rid of all those extra objects you create. So the less efficient your code, the more quickly the phone's battery will be drained, and the less happy the user will be. And you want happy users, right So, let us take a look at a few tricks to make your fancy ListView widgets more efficient.

Pausing and Resuming a Map Activity

Mobile applications have unique requirements, due mostly to the constrained resources available to execute applications. For now let's focus on MapActivities and talk about a way we can help save battery power. The good news is that Android makes it pretty easy. In a mobile environment, battery life is everything, and if we're not the application that is currently being displayed, we want to do everything we can to minimize the power we consume. You recall from the discussion of the Android lifecycle (Chapter 1) that when an Activity (such as MicroJobs) starts another Activity (such as MicroJobsList) the new Activity takes over the screen, and the calling Activity gets pushed onto a stack of Activities that are waiting to run. At that time, Android calls the onPause() routine in the calling Activity so it can prepare itself to go into hibernation. At this point in MicroJobs.java (or just about any MapActivity that uses location updates), we want to turn off location updates. Doing so...

Application Marketplace

Even lower-end mobile phones typically bundle web browser, e-mail, and text messaging, but the power of the smartphones enables a wider array of applications. Smartphones are not just little computers that fit in your pocket. For many applications, they are actually more powerful devices than a laptop due to their built-in capabilities of camera, connectedness, and geolocation. Business people who can afford a laptop often prefer the longer-lasting battery power and portability of the smaller device. In an Information Week article, Alexander Wolfe collected real-world use cases of businesses adopting smartphones for applications that used to be only accessible with a desktop or laptop computer The company's field-sales reps tried laptops and tablet PCs, but their battery life was too short and rebooting took too much time on sales calls, which number 20 to 25 a day, says Mike Corby, director of direct store delivery. Dreyer's reps also found the laptops to be too bulky to tote around,...

Nonionizing Radiation

To assure optimal phone performance and ensure human exposure to RF energy is within the guidelines set forth in the relevant standards, always use your device only in its normal-use position. Contact with the antenna area may impair call quality and cause your device to operate at a higher power level than needed. Avoiding contact with the antenna area when the phone is IN USE optimizes the antenna performance and the battery life.

Writing Efficient Android Code

That's why it's very important to consider performance when you write Android applications. These systems are not that fast to begin with and they are also constrained by their battery life. This means that there's not a lot of horsepower to spare, so when you write Android code it's important to write it as efficiently as possible.

Android basics

Opening and switching applications 32 Working with menus 34 Options menus 34 Context menus 34 Monitoring your phone's status 36 Status icons 36 Notification icons 37 Managing notifications 38 Searching your phone and the web 40 Searching the web by voice 44 Locking your screen 45 Customizing the Home screen 46 Connecting quickly with your contacts 49 Optimizing battery life 50

Be Efficient

Manufacturers of embedded devices, particularly mobile devices, generally value small size and long battery life over potential improvements in processor speed. For developers, that means losing the head start traditionally afforded thanks to Moore's law (the doubling of the number of transistors placed on an integrated circuit every two years). In desktop and server hardware this usually results directly in processor performance improvements for mobile devices it instead means smaller, more power-efficient mobiles without significant improvement in processor power.

Now the Caveats

Background threads, while eminently possible using the Android Handler system, are not all happiness and warm puppies. Background threads not only add complexity, but they have real-world costs in terms of available memory, CPU, and battery life. The possibility that your user will get irritated if you chew up a lot of CPU time and battery life without giving any payback. Tactically, this means using ProgressBar or other means of letting the user know that something is happening. Strategically, this means you still need to be efficient at what you do background threads are no panacea for sluggish or pointless code.

And Now The Caveats

Background threads, while eminently possible using the Android Handler system, are not all happiness and warm puppies. Background threads not only add complexity, but they have real-world costs in terms of available memory, CPU, and battery life. The possibility that your user will get irritated if you chew up a lot of CPU time and battery life without giving any payback. Tactically, this means using ProgressBar or other means of letting the user know that something is happening. Strategically, this means you still need to be efficient at what you do - background threads are no panacea for sluggish or pointless code.

Battery

Battery life estimates (approximations) Talk time Up to 420 minutes for WCDMA Note Battery life is subject to network and phone usage. Do not attempt to open, disassemble, or service the battery pack. Replace only with the battery pack designated for this product. Recycle or dispose of used battery as stipulated by local regulations.

About Phone Screen

The About phone screen, shown in Figure 15-17, is a brain dump of information that describes almost everything about your G1's software and hardware software versions, details on signal strength and battery life, and even a cute scrolling marquee of individuals and companies that have contributed their blood, sweat, and tears to make Android a reality (touch Contributors to see this moving tribute). You may need to come to this screen on occasion to read pieces of information requested by T-Mobile customer service, but otherwise, you probably won't be visiting often.

User beware [ I

The SetCPU app makes managing a stable overclock very easy. By default, it gives your phone a moderate speed boost, but you can customise it further for more dramatic on-demand overclocking. More power means that battery will drain more quickly, but we found using SetCPU with a substantial on-demand overclock had little effect on our device's battery life. If

Utilities

The screen backlight on most Android phones uses an awful lot of battery-power. Though you can globally tweak the timeout that turns off the backlight, in some circumstances you just don't want it to go out. Maybe you're using an app while driving, or you might have an app that loses data or switches off altogether if the phone happens to lock up its screen while the app is running. For those times, there's KeepScreen. The KeepScreen app lists all of the installed apps on your phone then, with a tap, you can indicate which ones the screen shouldn't cut out on white they're running. With KeepScreen you can turn down the screen backlight timer to its lowest setting - 30 seconds - and preserve battery life, while retaining full functionality and control over the apps you need to use. Sounds good to us. The biggest issue with just about every smartphone is its battery life (or lack thereof). Android devices are no different, and the scope of their problems even tends to be greater because...

Types of Pestering

Your current phone may well have such icons, to indicate battery life, signal strength, whether Bluetooth is enabled, and the like. With Android, applications can add their own status bar icons, with an eye towards having them appear only when needed (e.g., a message has arrived).

Summary

You were introduced to some of the design considerations involved in developing mobile applications, particularly the importance of optimizing for speed and efficiency when increasing battery life and shrinking sizes are higher priorities than increasing processor power.

DIY Battery Repair

DIY Battery Repair

You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.

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