The original version of Gum Plus was largely a sexier repackaging of Just Mobile’s powerful, plasticky Gum Pro battery, preserving the same impressive 4,400mAh capacity but using a Mac-matching silver aluminum enclosure with Apple-styled remaining power indicators. Gum Plus’s single biggest functional improvement was the addition of 1-Amp charging capability, enabling the battery to fully refuel an iPhone at full speed, with enough left…
