AGM Lead-acid battery 12v 250Ah Deep Cycle Sealed Battery

AGM Lead-acid battery 12v 250Ah  Deep Cycle  Sealed Battery SPECIFICATION FEATURE Good deep discharge resilience performance. Special plate design guarantees battery floating life more than 2000 times. High thermal capacity reduce the risk of thermal out of control and drying hard, and the battery can be used in bad environment. Little water losing, and no electrolyte stratification phenemenon VOLTAGE 12V ENERGY 3000 Watts(Wh) TERMINALS T11(Female M8) Easy to adapt to different connection needs. SIZE 522mm L x 268mm W x 226mm H WEIGHT 72.5kg LIFE CYCLES(BATTERY LIFESPAN) DEEP CYCLES Up to 90% capacity for 2,000 cycles in recommended conditions. 25℃ is better.  OPERATING TEMPERATURE RANGE Ideal for rugged & harsh enviroments.  Charging:0 to 40 ℃ Discharge:-20 to 55℃ Storage:-15 to 50℃ DISCHARGE 1800 A max continuous. Month self discharge 2%(20℃) MAX CHARGING CURRENT 60A FLOAT CHARGING VOLTAGE 13.5 to 13.8V. Recom.13.5 V.  INTERNAL RESISTANCE 2.5mΩ CAPACITY AFFECTED BY TEMPERATURE 40℃ 106%   25℃ 100%  0℃ 86% APPLICATION 1.Railway and marine systems 2.Electric power system(EPS) 3.Emergency light 4.Emergency backup power supply 5.Auto control system 6.Alarm and security system 7.Electric tools, lawn mowers 8.Vehicle in place of walking 9.Golf trolleys and golf cart 10.Wheelchair, portable power 11.Medical equipment 12.High Power Backup Supply   Norminal Voltage 12V 20 hour rate(10.0A,10.8V) 250AH 10 hour rate(18.0A,10.8V) 240AH 5 hour rate(31.0A,10.8V) 230AH 1 hour rate(105A,10.5V) 200AH Internal Resistance 2.5mΩ Self-Discharge 3% of capacity declined per month at 20℃ average Operating temperature range Discharge -20-60℃ Charge -10-60℃ Storage -20-60℃ Max Discharge current(5S) 75A Charge Methods Constant voltage charge Cycle use 14.4-14.8V Max charging current 75A Temperature compensation -30mV/c Standby use 13.6-13.8V Temperature compensation -20mV/C   FAQ:   Q:What is special about lithium batteries? A：With high energy density, it has reached 460-600Wh/kg, which is about 6-7 times that of lead-acid batteries. Long service life, life span can reach more than 6 years. Light weight, the weight is about 1/5-6 of the lead-acid product under the same volume   Q:What is a lithium battery used for? A:Lithium battery use for power and energy storage. Like emergency power backup or UPS. Dependable electric and recreational vehicle power,golfcart,reliable and light-weight marine,solar power storage,surveillance or alarm systems in remote locations.   Q：What is the difference between a lithium battery and a lithium-ion battery? A:It mostly comes down to the fact that lithium-ion batteries are rechargeable while lithium batteries are single-use. Lithium battery have a higher energy density than lithium ion batteries.     Q:Which battery is better alkaline or lithium? A:Lithium batteries are lighter than alkaline batteries, so they offer an advantage when used with portable devices, especially cordless power tools.A lithium battery can be used as a high-performing alternative to a standard alkaline battery. Lithium battery designed to last longer,making them a good choice for high-tech and smart devices. They can withstand extreme low temperatures. Lithium can operate without failing in a very cold climate, so it’s ideal for outdoor applications.