Browse the top-ranked list of Smartphone Extended Battery below along with associated reviews and opinions.
Keep your HP Compaq smartphone running while traveling with this lithium-ion battery that features 3.7V of power for reliable use.
Power your smartphone with this lithium-ion battery that features 3.7V of power and a 1100 mAh power rating.
Power your T-Mobile smartphone with this lithium-ion battery that features 3.7V of power and a 1350 mAh power rating.
Ensure your Motorola Droid Ultra XT1080 cell phone is ready when you need it with this Lenmar CLZ628M battery, which offers a rechargeable design with overload protection. The lithium-ion battery delivers 3.8V of power to your device.
Power your Sony smartphone with this lithium-polymer battery that features 3.6V of power and a 1500 mAh power rating.
Extend the power of your device with this Lenmar CLZ612SG rechargeable battery, which is designed for select Samsung cell phones and features 3.8V and a 5200 mAh capacity. The included cover secures the battery to the back of your device.
There is no question this powerful battery has extended the duration of the cleaning cycles of my Roomba....Stable cleaning
Designed for use with iRobot 500 Series, 600 Series, 700 Series, 800 Series and Scooba 450 robotic vacuums, this iRobot Xlife 4419696 battery ensures long-lasting use for extended cleaning performance.
Not bad...It actually works really well and I have used it on several occasions in the last month where I was not near a power source It is small and I have only plugged it in for 20 minutes to get a partial charge until I could get to a place where I could plug my wall charger in....Bought it black Friday have not ever used it does not wotk
Easily charge your device on the go with this PNY PowerPack T2600 USB rechargeable external battery, which is compatible with most USB- and micro USB-enabled devices. The 5V, 1-amp USB output and micro USB input allow fast, efficient charging.
Power your HP smartphone with this lithium-ion battery that features 3.7V of power and a 2200 mAh power rating.
Power your BlackBerry smartphone with this lithium-ion battery that features 3.7V of power and a 1400 mAh power rating.