Low cost electric power generation using raw juice from culled papaya or fruit waste as feedstock was achieved in a sugar-air alkaline battery (SAAB) with about 37% coulombic efficiency at 0.7-0.8 mW cm(-2) near peak power density. Such fruit waste, juice-based electrochemical energy could be poised as sustainable distributed energy resource for remote or underdeveloped regions that need cheap electricity without complicated infrastructure. (C) The Author(s) 2016. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. All rights reserved.