Whatsize screws for ac full#
Whatsize screws for ac portable#
Whatsize screws for ac pro#
Whatsize screws for ac plus#

About the length and width of an iPhone 4, but twice as thick, the Powerstation Duo is the smallest and lightest charger of the group, measuring just 4.3 by 2.3 by 0.8 inches and weighing only 6.5 ounces. Like several other batteries here, Mophie’s $100 Juice Pack Powerstation Duo (3 of 5 rating) can charge two devices at once. Warning: Do not overcharge or drop the device, or the resulting zombie apocalypse will be your undoing. It then charged our dead fourth-generation iPad to 70 percent of full. Plugged into Apple’s 10W iPad USB charger, the Lenmar model took 6 hours, 49 minutes to reach its maximum charge. You charge the Power Bank itself using the included Micro-USB cable.

Whatsize screws for ac portable#

Unlike the iSound Portable Power, the Helix Power Bank can charge two phones and one iPad simultaneously.

Whatsize screws for ac plus#

The 4.7-by-3.1-by-0.9-inch battery weighs 9.1 ounces and sports three USB-charging ports: two 1.1A ports for charging phones, plus one 2.1A port for higher-draw devices such as the iPad.

Whatsize screws for ac full#

When fully charged, the battery charged our fourth-generation iPad to 75 percent of full capacity.Īccording to Lenmar’s curious zombie-themed marketing materials, the $100, 11000-mAh Helix 11000mAh Portable Power Pack (3.5 of 5 rating) can help you revive your dead portable devices, making them “undead.” The Power Bank has four green “eyes” (really just status LEDs showing the remaining charge, but I’m playing along with the zombie theme here). We were able to charge the Gum Max Duo, using Apple’s iPad charger, in a leisurely 13 hours, 14 minutes. The “Duo” in the product’s name refers to the battery’s two USB-charging ports, one providing 2.4A (for iPads) and the other 1A (for phones, iPods, and other lower-power devices). The Gum Max Duo, which charges via an included Micro-USB cable, offers 11,200 mAh of power, weighs 9.7 ounces, and is 4.3 by 3.2 by 1.1 in size. If you like your mobile chargers with a splash of color, Just Mobile’s $130 Gum Max Duo (3.5 of 5 rating) offers optional rubber sleeves in red, blue, and yellow to cover its aluminum and black surfaces. (As with the smaller Portable Power, we were able to connect phones to all five USB ports without overloading the battery.) And also like the standard Portable Power, the Max’s five USB ports can’t handle a lot of power-hungry devices: If you’ve connected a full-size iPad to it, adding more than one smartphone stops the charging altogether until you toggle the battery’s power button off and on. Like its smaller sibling, the Portable Power Max requires the included (and inconvenient) AC adapter to charge. The drawback to having so much capacity is that charging the battery itself took forever-nearly 14.5 hours! The Power Max is also relatively large at 5.8 by 3.3 by 1.0 inches, and it weighs 14.6 ounces. We were even able to plug in a second iPad and charge that by a small percentage before the Portable Power Max died. With a massive 16,000-mAh capacity, the $130 Portable Power Max (3 of 5 rating) was the only portable battery in this group that was capable of fully charging our dead fourth-generation iPad.

Interestingly, this iSound battery also has a built-in LED flashlight, which I suppose might come in handy when you’re searching in your bag for that extra power supply you had to pack. Unlike most of the chargers in this roundup, the Portable Power comes with, and requires, its own power adapter for charging, which is much less convenient than charging via USB.

Whatsize screws for ac pro#

At 3.5 by 3.3 by 1.0 inches, the 8.2-ounce, squarish Portable Power is almost identical in size to Apple’s older 85W MacBook Pro power adapters. But with a battery capacity of 8000 mAh, the iSound Portable Power offers a good amount of charging power and with five USB ports, it can accommodate more devices than most of the other batteries we tested. A few have AC plugs built in, so you need nothing but an electrical outlet to fill them up.ĭespite the name of its vendor, iSound, the $90 Portable Power (3 of 5 rating) does not have built-in speakers. (They’ll charge more quickly with your iPad’s power adapter, or another dedicated USB charger, than with a computer’s USB port, but either will work.) Some, however, require a particular AC adapter, which is less convenient.

Many portable batteries can charge over a Micro-USB cable, eliminating the need to pack another power supply. Similarly, the higher capacity a portable battery has, the longer the battery itself takes to charge: Some need as long as 14 hours, requiring you to leave them plugged in all night. If you’re packing light, adding a 1-pound charger to your bag may not be wise.

The downside is that higher-capacity batteries are generally larger and heavier than lower-capacity models.