18650 lithium ion battery pack 3.7V 2400mAh is high quality and safe
Taskulampun akku 2400mAh Monarch Pocket LED Stroboscope | Lapin Akkumaailma Oy
US(6Pack) XL-060F AA 3.6V Lithium Battery 2400mAh for Xeno Energy XL-060F AA 3.6 | eBay
Amazon.com: Gecoty 4.8v Battery Pack,2400mAh nimh Battery Pack,Rechargeable RC Battery with Charge Cable,SM 2P Plug for Trucks 1:18, 1:16,1:14,Remote Control Car,RC 4x4 Trucks : Health & Household
2 x TF18650 2400mAh Batteries (fast delivery from GERMANY and USA could receive within 5 days)
Amazon.com: 9.6V 2400mAh Ni-MH Battery Pack Rechargeable AA X Mode with Standard Tamiya Connector for HuanQi 781 728 RC 1:24 M1A2 Toy Tank : Toys & Games
Amazon.com: Gecoty 9.6V NiMH Battery, 2400mAh AA Battery Pack with Tamiya Plug and Charge Cable for RC Car, RC Battle Tank, RC Boat, 9.6V Rechargeable Battery : Health & Household
Amazon.com: HJ 2 pcs 3.6V 2400mAh NI-MH 3xAA SM2P Battery with USB Charging Cable for Some Kind of RC Toy Car Boat Plane Flashlight Safe Equitment Electric Machine : Toys & Games
Teleradio akku 3.7V 2400mAh Li-ion edullisesti | Akku-Ässä Oy