Better batteries!\nThis week's roundup of iOS accessories features new ways to charge your iOS device, even more Bluetooth speakers, and a few ways to maximize the versatility of your iPhone and iPad.\nBluelounge\nThis company has two clever new products. The $20 Kii (pictured) is a short charge\/sync cable that fits on your keychain. The $30 Saidoka is an elegant, soft-rubber iPhone charge\/sync dock designed to sit neatly next to your computer.\nBraven\nThe $300 Braven 850 is a portable Bluetooth speaker system featuring 20-watt speakers and\u2014even more impressive\u2014the capability to charge a full-size tablet. You can even daisy-chain two for full stereo audio.\nEagleTech\nThe $50 ET-NP056K-BL portable battery pack can recharge both your iPhone and iPad. It comes in five different \u201ceye-catching\u201d colors, and it includes an LED flashlight and battery indicator to let you know when your iOS device is fully charged.\nJust Mobile\nThe $90 Gum++ battery has enough capacity to charge your iPhone three times over, or to add \u201cprecious hours\u201d to the life of your iPad. It weighs less than 5 ounces.\nPlanet Audio\nThis company has unveiled its Lynx line of portable Bluetooth speakers, ranging from the $30 PA100B, a pocket-sized speaker, up to the $80 PA600B waterproof speaker (pictured), available in black or white. All models feature a 33-foot wireless range and a 3.5mm audio jack for connecting a wired source.\nSwitchEasy\nThe $70 Tanks is a high-capacity (6000 mAh) battery designed for \u201cfast charging\u201d iOS devices. It comes with rubber bumpers and an LED indicator to let you know when the battery itself needs recharging.\nUSBFever\nThe $227 Astronomy-Class 100X Telescope and Back Case for iPhone 5 can help you peer into the stars, using your iPhone to take detailed pictures and video of the interstellar bodies you see. The telescope comes with a tripod, a \u201cTele-Lens\u201d connecting kit, and a carrying box.\n \nIf you liked this slideshow, you may enjoy the previous installment, Bluetooth galore.