Imagine having to make an emergency phone call only to find out your mobile phone battery is dead. Good luck finding a pay phone.
If you rely on your mobile phone to stay connected - to family and friends, your job, etc. - invest in a good back up battery. Next to your phone charger, it is the most important accessory you could have.
Particularly when you're talking about using a smart phone that does a lot more than make a call. Web browsing, videotaping, watching videos and TV shows on your phone drains power fast.
I have been using a Mophie Juice Pack Air rechargeable battery with built-in case for my iPhone. At about $80, it's more expensive than most battery packs, but that's because it comes with a very hard shell case that completely protects the phone. At it doubles the battery life of the iPhone, providing a whopping 270 hours of standby time and up to 4.5 hours talk time.
Another choice is the RichardSolo Smart Backup Battery at about $50. You just pull it out when you need it by snapping it onto the bottom of the iPhone, iPod Touch or other iPod devices. Easily fitting in your pocket, the battery also doubles the battery life of the iPhone.
Important features to look for when shopping for a back-up battery:
Charging: Most back up batteries charge via a wall outlet. Bonus if USB works too. Another must-have is simultaneous charging; plug it into the wall and charge backup battery and mobile phone at same time.
Size matters: The smaller the charger, the better for convenience sake. But make sure the small size doesn't compromise battery life. Look for a battery that gives you at least several hours extra juice.
Lithium polymer is the gold standard: These batteries last a long, long time and develop no memory issues.
On/Off switch capability: It's best if your backup battery gives the option of using it's power or china mobile phone power by a flick of switch. That way you can choose when to drain the back-up battery or not.
Be kind to your cell. Keep your mobile phone alive longer by using a case, keeping it clean and dry and following overnight charging instruction. Never start the day with a low battery charge.
Because never know when you need extra power - until of course you need it.
Buy cell phone, tv mobile phone, cheap china phone, quad band cell phones, china mobile phones at China-Phone.Org