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3S 20A		Description: Module name: 3S 12.6V Li-ion Lithium Battery 18650 Charger Protection PCB BoardSuitable range: For nominal voltage 3.6V 3.7V lithium battery(Including 18650,26650, lithium polymer batteries) Product size: 59203.4mmProduct weight: 4.4g Charging voltage: 12.6V Maximum output current: 20A Maximum output power / charging power: 252W Precautions: 1.Strictly according to the diagram wiring: 0V/4.2V/8.4V/12.6V,Otherwise it will cause damage to the chip. 2.After connection,it need to first charge activation, then will have the output. Note: Do not mix the good battery and poor battery to use.The internal resistance of 3 battery capacity are closer will be better.Please buyers know the professional knowledge of this module before buying Package Included: 1PC*3 string 12.6V 20A 18650 lithium battery protection board
3S 30A		Description: Brand new and high quality Module:3S Li-ion Lithium Battery Protection Board Overcharge detection voltage :4.25±0.025V Overcharge Lift the voltage:4.15±0.05V Over discharge detection voltage :2.50±0.08V Over discharge Lift the voltage:3.00±0.1V Overcurrent current:20-30A Working current:15A(Natural cooling 10.A, add heat sink 15A, the maximum instantaneous current 30A) Remove protection condition automatic recovery, without activation Protections: Short circuit protection Overcharge protection Over-discharge protection Overcurrent protection Operating temperature: -40-85℃ Size: Approx. 50x22x4mm Package Included: 1PC*3S Li-ion Lithium Battery 18650 Charger Protection Board
3S 4A		Description: 1.For Lithium battery operating voltage: 10.8V ~12.6V 2.Applicable for 10.8V (3.6V * 3S) lithium battery & packs 11.1V (3.7V * 3S) lithium battery & packs 12.6V (4.2V * 3S) lithium battery & packs 3.Cylindrical Lithium battery (Li-ion) 4.Prismatic Lithium Polymer battery (Li-Po) 5.Could also work for 3S2P (6 cells) , 3S3P (9 cells), 3S4P (12 cells) etc. 6.Protections: Short circuit protection,overcharge protection ,over-discharge protection and over current protection Parameters: 1.Maximum protection voltage ( for every single cell ): 4.255V ± 0.05V 2.Minimum protection voltage ( for every single cell ): 2.35V ± 0.05V 3.Maximum operating current: 4A 4.Size: 35mm * 32mm Package Included: 1PC*3S Li-ion Lithium Battery Protection Circuit Board
3S 4A-5A		Description: Properties of the lithium battery protection board Model: HH - P3-10.8 Charging voltage range: 4.25-4.35 v±0.05v Size: 48 * 15 * 1.0 mm Discharge voltage range: 2.5-3.0V±0.05v Maximum working current: 3A Working temperature: - 40 --- +50 ℃ Maximum instantaneous current: 4-6A Storage conditions: - 40 --- +80 ℃ Static electricity: less than 6 uA Useful life time: more than 50000 hours Resistance: less than 45 m Ω Short circuit protection: can protect,need charging Function Connect the lithium battery with protection board according to the wiring diagram, when the battery voltage is between the charging pressure and discharge voltage, and the P +, P - charging after 1 seconds,the output voltage P + and P - is the same as the battery voltage. Package Included: 1PC*4A-5A PCB BMS Protection Board
3S 25A		Description: Brand new Size: about 56mm45mm1.2mm Over voltage range: 4.25-4.35v±0.05v Over discharge voltage range: 2.3-3.0v±0.05v Maximum operating current: 0-25A Maximum transient current: 34-40A Quiescent current: less than 30uA Internal resistance: less than 100mΩ Working temperature: -40---+50℃ Storage condition: -40-- +80℃ Effective life: more than30000h Short circuit protection: Yes, delayed self recovery Precaution: Strictly according to the diagram wiring: 0V(B-)3.7V(B1)7.4V(B2)11.1V(B+), Do not deliberately short circuit. After the line is connected, Need to charge first, then have output. When the battery is connected in series with 3 groups, Please ensure that the voltage of each battery is the same. If not same, please fill in each set of batteries and then use. Do not mix the good battery and the battery. The capacity of the battery internal resistance is closer will be better. Attention: Do not mix the good battery and poor battery to use. The internal resistance of 3 battery capacity are closer will be better. Please buyers know the professional knowledge of this module before buying Note: Due to different producing batches, product details might be a little different. If you minding the difference, please buy it carefully. Please allow 1-5mm differs due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same Package Included: 1PC*PCB Protection Board

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