C4 Power House Rechargeable Lithium Battery ONLY – ICOtec
Wife asked “what's the difference between C4 and C8 batteries??” She didn't know, so bought both : r/funny
Energizer Max C4 C Cell Alkaline Battery - Total: 12 Batteries (3 X 4 Count Packs) - Walmart.com
Amazon.com: Miboxer C4-12 Universal Smart Rechargeable Battery Charger Intelligent 4 Slot Output Li-ion 4X3A,Ni-MH/NiCd 2X1A for 18650 AA C 26650 16340(RCR123) 14500 and More But Except LiFePO4 : Electronics