Publishers of technology books, eBooks, and videos for creative people

Home > Articles > Apple > iPhone

  • Print
  • + Share This
This chapter is from the book


Each Droid comes with a rechargeable lithium-ion battery that typically allows you to talk for approximately 8 hours or keep the phone on standby for more than 10 days. Your Droid's battery consumption depends on several factors, most of which are common sense, including mobile broadband (4G) use, number of calls made, screen brightness, radio use, and camera use. For more tips on getting the most life out of your battery, refer to "Managing Battery Life" in Chapter 3.

Although the Droid's battery (shown removed in Figure 4.6) is much better than that of previous Android phones, manufacturer battery specs are rarely achieved in real-world use. The good news is that with a moderate amount of conservation, you can expect to get a full day's use out of the included battery.

Figure 4.6

Figure 4.6 Rear view of the Droid Pro with the SIM card, microSD card, and battery removed.

Battery charge

When you first start your Droid, the included battery can have anything from zero charge to a partial charge. Assuming that you don't have to run out the door with it right now or anything, I recommend connecting your phone to the wall charger to give it a good solid charge.

You should fully charge the Droid's battery before using the phone. Depending on how much charge remains, a recharge should take about 1.5 to 2 hours. I don't know about you, but there's almost no chance that I'll put down a new gadget long enough to charge it fully. I recommend that you find a comfy chair next to an outlet, plug in the Droid, and explore a bit while it charges for the first time.

Like most Android-powered phones, the Droid comes with a lithium-ion (abbreviated li-ion) battery. This battery doesn't suffer from the memory effect, in that you don't have to drain it completely before recharging it. I still try to fully charge my Droid's battery whenever possible, but this practice is mostly habit (and partly superstition?) and isn't necessary.

Charging methods

You have two ways to charge your Droid's battery:

  • Charger cable. The charger cable came in the box with your phone. You've probably charged devices with a cable like this since you were 5 years old, so I'll let you figure that one out yourself. You can find the Micro USB charging port on an edge of your Droid.
  • USB port. The alternative is to plug your phone into an available USB port on a computer, using the included USB cable. This method is a boon if you travel with a notebook computer because you can leave the bulky brick at home and charge your phone simply by connecting it to your notebook via USB.

Charging schedule

Your charging schedule depends on how you use your Droid. If you're a casual user who places and receives fewer than ten calls per day and uses the phone's Internet features sparingly, I recommend that you charge your phone each night while you sleep. Although the phone may not need a charge at the end of each day, charging nightly is a hedge against the chance that you'll have an unexpectedly busy day tomorrow and your phone will run out of juice just when you need it most.

If you're a heavy user of features such as 4G, GPS, and Wi-Fi, you can literally watch the battery meter trickle down as you use your Droid, and you need to plan accordingly. Heavy users may have a tough time making it through a standard business day on a fully charged battery. If this sounds like you, you'll want to read the next section and "Managing Battery Life" in Chapter 3.

Backup batteries

As I mention earlier in this chapter, Droids eat batteries for lunch, and even a moderate user will eventually need a backup battery. Luckily, replacement batteries are relatively cheap—around $40 for a new Motorola Droid—which makes purchasing one a no-brainer. Do yourself a favor: Pick up an extra battery, and keep it in your gear bag.

If you want even more power, you can purchase a battery with double the capacity (as high as 2600 mAh) of the Droid's original battery for less than $50 on the aftermarket. Although it effectively doubles your Droid's run time, this type of battery requires a replacement rear cover to cover the extra bulge. Think in terms of a trade-off: You can have longer run time if you're willing to add some size and weight in exchange.

  • + Share This
  • 🔖 Save To Your Account

Peachpit Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from Peachpit and its family of brands. I can unsubscribe at any time.


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about Peachpit products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information

To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.


Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites; develop new products and services; conduct educational research; and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.


If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information

Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.


This site is not directed to children under the age of 13.


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information

If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at and we will process the deletion of a user's account.


Users can always make an informed choice as to whether they should proceed with certain services offered by Adobe Press. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive:

Sale of Personal Information

Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to

Supplemental Privacy Statement for California Residents

California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure

Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact

Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice

We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020