Car battery life, car battery, Li Wei Po battery (view) are provided by Shenzhen Wei Lai Po Battery Limited. Shenzhen Wei Lai Po Battery Co., Ltd. (www.weilipo.com) is a professional "car battery, car battery, auto lead-acid batteries," the company. Since its inception, we adhere to the "honesty, sound management" approach, the courage to healthy competition in the market, so that "ABM" brand has a good reputation. We adhere to the "service first, customers first" principle, so that Wei Li Po battery has won the trust of customers congregation in batteries, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you! Battery Fault Detection Guide (details) maintenance-free battery: maintenance-free battery: Also called MF batteries (ie English Maintenace-Free acronym), which means within a reasonable period of use (usually four years) without adding distilled water. Maintenance-free battery features: (1) the use of distilled water without filling up with little or filling distilled water. (2) long life (typically 4 years car battery wholesale, as an ordinary battery 2,3 times). (3) internal resistance, good starting performance. (4) low self-discharge. Without supplementary charge structural features maintenance-free battery plate gate frame is made of lead-calcium-tin alloy, eliminating the side effects of antimony;?? Using PVC bag separator, to avoid the active material shedding, short-circuit plate;? adopt new safety ventilation device;? housings made of polypropylene plastic, no bottom ribs standing 20-30min after filling the electrolyte can be used, no initial charge to buy a car battery were rarely spent sulfur? charging, the main charge is added. ? Dry-charged battery: charged plates in a dry state and non-electrolyte storage batteries. ? After the dry-charged batteries to add a little electrolyte, quiet place 20 ~ 30min to use. ? Dry-charged battery technology features:? Cavernous improved anode plate pure lead hydrophobicity and antioxidant gel electrolyte batteries:? In the gelled electrolyte batteries, the electrolyte is an aqueous solution of sodium silicate solution after mixing with sulfuric acid purification After condensed into a viscous colloidal substances. ? Its advantages are: the electrolyte will not spill; the use of maintenance and transportation, the active substance is not easy to fall off; prolong the service life of 20%; no need to adjust the density of use, simply add distilled water. ? The disadvantages are: a large car battery gel electrolyte resistance, the resistance increases, reduced capacity; uneven contact with the plate, the self-discharge is more serious.