Despite shape similarities to the old Gum Pro, Superpak features a more efficient design. Measuring roughly 3.6” long by 3.2” wide by 0.85” thick, it’s around 50% the footprint of APC’s recent 10,000mAh M10BK battery (shown here), but also twice the thickness. Its large circular power button sits right next to three USB ports — one micro-USB port to recharge Superpak, one 2.1A USB port to recharge a tablet or iPhone…
