SkyRC eN18 Charger 4-8S NiMH T-Plug 240VACSkyRC eN18 NiMH Peak Charger Compact but Versatile Want to get the most out of your batteries? You really need to make sure you can deliver a full charge to your batteries with a SkyRC eN18 Peak Charger. SkyRC eN18 is more than just a peak charger it's a versatile peak charger capable of charging both electric car battery packs and nitro car receiver packs. This is possible because the SkyRC eN18 offers voltage ranging from 4. 8 to 14. 4V at 1. 2 amp.