This is the Safe - Po Charge Safety Bag from Electri - FEATURES: Constructed of super-strong fiberglass coated with heat-resistant silicone Seams are joined with heat resistant thread and flap has three melt- proof steel snap closures Perfect for 1-3 cell Li - Po packs with capacities as high as 3200m - Ah INCLUDES: Electri - Do not discharge batteries below 3V per cell. Doing so may result in cell damage and subsequent cell venting on future charging The protection provided by this charge safety bag is limited. Do not assume this bag will provide complete protection for all surroundings if a Li - Po battery catches fire while inside. Read the included instructions entirely before use. Do not recharge damaged batteries. Dispose of damaged batteries in the proper manner. It is modeler's sole responsibility to assure their charger is working correctly. Always monitor charging process. Failure to do so may result in cell damage or fire.