Product Name: Excellent Starting Performance 12V Lithium Battery for Car Model NO.: ENBY-12V/20Ah Electrolyte: Electrolyte Usage: Car Starting Standard Voltage: 1.5V?4.8V1.5V?4.8V Rated Capacity: >1000MAH Accessories Type: Battery Size: Small Discharge Rate: Medium Discharge Rate Rechargeable: Chargeable Connection Mode: Series and Parallel Type: LiFePO4 Battery Certificate: MSDS , RoHS, Un38.3 Trademark: ENERBYTE Transport Package: Carton Box Specification: 18650 Origin: China HS Code: 8507600090 Product Description Rechargeable Car starting lithium battery pack 12V 20-100 Ah ModelENBY-12V/ 20-100AhCapacity(0.2C5A)20-100AhNominal Voltage12VMax. Charge Voltage14.6VDischarge Cut-off Voltage12V (recommended)Working Voltage Scope12V~14.6VCold crankingcurrent1000-1200AWeight (Approx.)5-10KgSBattery Dimensions260* 174*200mm(LXWXH)Impedance(Max, at 1000Hz)(Single cell) ≤2.5mΩCycle Life(80DOD%)>2000 TimesSelf-discharge Rate≤3%(month)Operating TemperatureCharge0ºC~45ºC;32oF~113oFDischarge-20ºC~60ºC;-4oF~149oFStorage-20ºC~45ºC;-4oF~113oFThe comparison of Lead-acid battery and LiFePO4 batteryLead acid battery LiFePO4 battery It has Sulfuric acid liquid inside, easy to pour out and corrodethe batteryABS case , safe and reliableIt has heavymetal-lead, pollute theenvironmentand hazardous to healthPollution-freeLower discharge current, easy to damage battery if over-discharge.Large discharge currentShort cycle life, only with 300 time and service life is about 2-3 yearsLong cycle life with 10 yearsPerformance is not good under low temperature condition, it is difficult to start under -10ºCExcellent performance under lower temperature conditionEasy to damage if store for long timeCan store for long time, at least 2 years.Heavy weight and large sizeLight weight and small size.about Car Battery suggestion 1. Do not connect and avoid accidentally connection between positive and negative pole with metallic conductor to avoid short circuit.2. Do not use in deep cycle (capacity lower than 50%, electrolyte gravity below 1.200g/ml).3. Keep safe vent-valve work properly to avoid explosion caused by valve failure.4. Do not invert or incline more than 45 during transfer or storing.5. Keep ventilation on during charging, no smoking.6. Wear goggle when remove or check the battery.7. Avoid convert connection or unstable connection.8. Do not fill in unqualified electrolyte or water.9. Do not operate under insufficient electrolyte condition. Semi maintenance free battery should be filled in pure water regularly.about US Ifyou have any requirements , pleasejust contact withus.