E-flite 3.7V 500mAh 1S 25C LiPo Battery PH 2.0 High-Current Ultra Micro EFLB5001S25UM

IMPORTANT LITHIUM POLYMER SAFETY INFORMATION

• DO NOT leave a battery in your model when charging
• DO NOT leave lithium batteries unattended when charging
• ALWAYS balance charge lithium battery
• ALWAYS use a LiPo Safe charging bag/box
• YOU MUST use a Li-Poly specific charger to charge lithium batteries (NiMH or NiCD only chargers WILL NOT WORK!)
• DO NOT over discharge lithium battery packs
• DO NOT expose batteries to sunshine or store/charge batteries at temperatures above 35C/95F or in a closed automobile. 
• READ & UNDERSTAND the instructions carefully before operating this battery