Description Charging voltage:8.4V-9V overcharge voltage range:4.25v0.05v Over discharge voltage range:2.9v0.05v Upper working current:10A Operating temperature:-40-+50 Upper limit instantaneous current:20A Storage conditions:-40-+80 Quiescent current:less than 10uA Effective life:more than 50,000 hours Internal resistance:less than 300m Short circuit protection:can be protected,need to charge recovery Size:4.8x2.4cm/1.89x0.94inch Note: Please allow 1-3mm error due to manual measurement.pls make sure you do not mind before you bid. Due to the difference between different monitors,the picture may not reflect the actual color of the item.Thank you! Package Includes: 1x 18650 Lithium Charger for Protection Board