External portable battery allows you to charge most electronic devices on the go. You will never have to worry about losing power again. It's great for traveling, for either short or long trips, or even just as a back-up power source. Works great for charging your Samsung Galaxy S2 or other mobile phones, PDA's, portable game consoles, music players, tablets, etc. It can provide and up to 25 extra hours of movie time or 100 extra hours of audio time. Check out for Top 5 Best External Battery Pack And Charger For Samsung Galaxy S2.
1. PowerGen Black Mobile Juice Pack / External Battery Pack 2900mAh UltraSlim Power Bank Charger (with Build in Micro USB) for HTC Sensation, EVO 3D, ThunderBolt, Inspire 4G, Sprint EVO, EVO Shift 4G, Desire Z / Google Nexus S / Motorola Arix, Triumph, Droid X 3 2 Bionic / Samsung Galaxy S2, Epic 4G / Blackberry Curve, Storm, Storm2, Bold, Torch / Also fits iPhone 4s 4 3Gs 3G
Extra High Capacity, 2900mAh, Capable to perform 2 to 3 charging cycle for most mobile device. Slim, Sleek, Compact, portable and stylish Design. Convenient to carry in your pocket or purse. Leave it plugged in to your Samsung Galaxy S2
Rechargeable: Convenient rechargeable battery allowing you to always have a battery charging backup when you are away from a AC outlet. Smart Design: With Build Micro USB 5 pin Male Connector for charging most latest Mobile Devices.
You can purchase it from $27.99 (new) at Amazon.com here.
2. Hyperion Samsung Galaxy SII 2x Battery + Travel Charger for Samsung Galaxy S 2 i9100 (NOT Compatible with Sprint Epic Touch 4G SII, AT&T i777 SII, or T-Mobile SII)
Includes 2x 1800mAh Batteries and 1x Universal Dock Charger. Battery is designed specifically for Samsung Galaxy SII i9100, and will also work fully in the Samsung Galaxy SII i7777 ( US model from ATT )
Battery Cell Type: Lithium-Ion Voltage: 3.7V Capacity: 1800 mAh. Built-in overcharge protection. The Smart LED shows charging status.
You can purchase it from $24.99 (new) at Amazon.com here.
3. Anker™ SlimTalk External Battery Pack and Charger (Power Bank) with flashlight for Samsung Galaxy S i9000, Galaxy S2 i9100; Samsung Galaxy S 4G, Epic 4G Touch,Infuse 4G, Exhibit 4G, Nexus S 4G; Samsung Fascinate, Captivate, I997; Samsung Driod Charge, Google nexus s; Samsung Vibrant, Focus, Memoir, Omnia 7, Indulge, Intercept, Transform, Moment , Solstice, Continuum- Black
The Anker external battery can perform 2-3 charging cycles for most mobile device. There's no need to charge your devices through an electric outlet. Its small size allows you to carry the power source wherever you go. Say bye-bye to bulky chargers and a mess of external connecting cables from now on. You will love to have this along on your next trip.
Charge your cell phone any time you want, Micro-USB embedded helps you to leave behind the annoying connecting wire. It is using well-known brand Grade A cells to extend your battery life. Huge capacity 3200mAh. Anker products are manufactured under highly-skilled process; every piece is tested to ensure high reliability and top performance.
You can purchase it from $25.99 (new) at Amazon.com here.
4. EVOPower Black 2 USB Port Compact External Portable Rechargeable Emergency Backup Battery Charger (5000mAh) - Includes USB Charging Cable +Tips (Free BlueMall Wrist Strap) for Samsung Eternity II SGH-A597 / Epic 4G / Fascinate SCH-i500 / Intercept M910 / Captivate SGH-i897 / Acclaim SCH-R880 / Vibrant SGH-t959 / Gravity T SGH-t669 / Gravity 3 SGH-t479 / Smiley SGH-t359 / Galaxy S 4G Prevail / Infuse /Sidekick 4G/ Droid Charge / Galaxy S 2 II /Epic Touch 4G / T989 / Galaxy Ace /
Universal, convenient, portable, and compact external rechargable back-up battery. Compatible with most portable devices (Mobile Phones, Music Players, Portable Gaming Devices, Digital Readers, etc.)
Charges via included USB cable + Includes interchangable charging tips such as mini USB, micro USB, and more for your convenience. 2 USB ports for Dual Charging, 5000mAh battery capacity.
You can purchase it from $29.99 (new) at Amazon.com here.
5. PowerGen External Battery Pack 5200mAh High Capacity Power Bank Charger 1A output for Apple iPad 2, iPhone 4 4s 3Gs 3G, iPod Touch / Samsung Galaxy S S2 S II, Epic 4G / Blackberry Torch Bold Curve / HTC Sensation 4G, Thunderbolt, EVO, EVO shift, EVO 3D / LG Optimus V 2X 3D t
Ultra High Capacity, 5200mAh, Capable to perform 3 to 5 charging cycle for most mobile device. Slim, Sleek, Compact, portable and stylish Design. Convenient to carry in your pocket or purse. Leave it plugged in to your phone.
Grade A LG Cell Used to assure you a highest quality and reliability. With LED to indicate charge level. Rechargeable: Convenient rechargeable battery allowing you to always have a battery charging backup when you are away from a AC outlet.
Package includes: PowerGen Juice Pack Ultra, 2 extension charge Cable (18CM and 70CM) , 8 Connectors for most phones and A Mini-Cube 1A Charger
You can purchase it from $39.99 (new) at Amazon.com here.