FeaturesBrand new and high quality.Components for the precision S-8254AA protection chip and genuine AO4407*4.Scope of application: all the nominal voltage of 3.6V, 3.7V of lithium batteries (including 18650, 26650, polymer lithium battery).Note : Strictly according to the wiring 0V (B-), 3.7V (B1), 7.4V (B2), 11.1V (B+), do not deliberately short circuit!After the line is connected to the need to charge (charge voltage 12.6V) activation, there will be output.When the battery in series 3, please ensure that the voltage of each battery is the same, if not the same, please fill in each set of batteries and then use... When the discharge is tested, the battery in which the voltage drop is the fastest is the difference between the battery and the battery.3A current above the discharge products, the battery discharge rate to 3C or more.Formula: 1C ratio of the battery, the 2000 capacity is equal to the maximum operating current 2AH*1=2A.3C ratio of the battery, the 2000 capacity is equal to the maximum working current 2AH*3=6A.in the use of the battery will be the battery power is not applicable, this situation must not be used for a long time, the battery will soon be damaged.Description interpretation.3 Series (series combination of 18650 3 batteries or lithium polymer batteries)10.8V (polymer battery rated voltage)11.1V (18650 or 3.7V lithium battery rated voltage)12.6V (lithium battery voltage)Discharge 10A (refers to the maximum discharge current limit)SpecificationsOver voltage range: (4.25-4.35v) + 0.05vOver discharge voltage range: (2.3-3.0v) + 0.05vQuiescent current: less than 6uAMaximum operating current: 5-8AMaximum instantaneous current: 9-10AEffective life: more than 30000 hoursResistance: less than 60m.Short circuit protection: protection, delayed self recovery.Storage condition: +80 -40--Operating temperature: -40---+50Package Included:1 x 12v Lithium Protection Board.NO Retail Box. Packed Safely in Bubble Bag.