Product Description 100% Brand New and High Quality 3 string 11.1V high current 100A, 3.7V ternary lithium battery protection board with balanced charge. The lithium battery protection board properties: Model: HX-3S-F100A Size: 70 * 60 * 8.5mm Overcharge voltage range: 4.28v 0.05v Overpressure voltage range: 2.5 0.05v Upper limit working current: 100A (pay attention to heat) Upper limit instantaneous current: 100-120A Quiescent current: less than 30uA Internal resistance: less than 300m Balance Current: 65 mA Charging voltage: 12.6V-13V Charge current limit: 10A Short circuit protection: protection, delay self-recovery. Operating temperature: -40 --- +50 Storage conditions: -40-- +80 Effective life: more than 30,000 hours T point Description: plus a normally closed temperature sensor switch can expand the role of temperature protection, need to remove the solder joint next to the 0R resistance. Note: 3A current above the discharge products, the battery discharge rate to 3C or more Magnification calculation formula: 1C magnification of the battery, 2000 capacity is equal to 2AH * 1 = 2A upper limit current. 3C magnification battery, 2000 capacity equal to 2AH * 3 = 6A upper working current. In the use of the battery will heat is Battery magnification is not applicable, this situation can not be long-term use, the battery will soon be damaged. Note 1: Strictly according to Figure 0V (B -), 3.7V (B1), 7.4V (B2), 11.1V (B +), C-charge negative, C + charge positive, P-output negative, P + Short connect Note 2: after wiring, it needs to charge first, then will have output. Note 3: When connecting three groups of batteries, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. Discharge test, the voltage drop is fast that group of batteries is poor battery. Explain: Do not put a good battery and poor battery mixed together 3 sets of battery capacity / resistance closer to the better (2 good batteries + 1 poor battery use effect = 3 poor battery use effect). Package Included:1x 3S Lithium 18650 Battery Protection Board W/ Balance