18650 battery pack from an ebike has no internal fuse, is one needed? (see comments) : r/batteries
18650 battery 7.4V 3000Mah 25C Li-ion Battery For MJX T40 T40C F39 F49 T39 RC Helicopter Parts RC Car 2S for Wltoys 10428 12428 - AliExpress
18650 7.4V 6600mAh Li-ion Battery Pack for RC Car Battery - China Battery Pack, Li-ion Battery Pack | Made-in-China.com
Using Li-ion Battery Packs for Long Range FPV Drone Flying: Pros, Cons, and Recommendations - Oscar Liang
Amazon.com: KBT RC Car Lithium Battery: 3.7V 2000mAh Rechargeable Li-ion Battery with SM -2P Plug & Charging Cable for RC Cars, Boat Spare Parts -2 Pack : Toys & Games