Yuasa 12v 65Ah 640A Silver Car Battery YBX5027 (HSB027) Yuasa 12v 65Ah 640A Silver Car Battery YBX5027 (HSB027)

We receive data from battery manufacturers and this may be subject to change and / or manufacturing tolerances.

YBX3027 Equivalent Product Codes

The sulphation hinders the efficiency of the electrochemical reactions within the battery between the active material of the plates and the acid. This is not a manufacturing fault. Terminal Layout: Negative (-) on left, Positive (+) on right ; with the terminals on the edge of the battery closest to you Electrical fault e.g. interior boot/glove box lighting, ECU/sensor interface issues where vehicle does not go into “Sleep” after parking for more than 5 minutes, wiper
motor fault Typically seen in a battery within 12 months service life. One cell will show a dramatically lower acid specific gravity reading than the others. The problem cell will usually boil visibly under a high discharge, all other remaining cells will show a good specific gravity reading of 1.26 or above. Short Circuit/dead cells seen in later life are usually associated with the recovery of a sulphated/overdischarged battery. It is possible to see variable acid specific gravities between cells if sulphation is the route cause.

Excessive use of electrical consumers, – air conditioning, stereo (incorrectly fitted direct to the battery) etc As above, every time a battery is charge and discharge cycled a small amount of material is lost. If a battery is subjected to deep discharging (greater than 35%) and rapid charging the process is accelerated. Additionally if the recharge does not recover the discharge cycle in full, the battery will exhibit loss of performance and concentration of the acid can occur between plates which can lead to corrosion and loss of performance. The condition of battery cables and terminal connections can influence the reading on the hand held tester. Yuasa lead-acid batteries are built to the highest standards. They are manufactured, in most cases to correspond with or exceed the vehicle manufacturer’s requirements and specifications.Different battery manufacturing design techniques can significantly effect the reading on one digital conductance tester as common algorithms have to be used. For example, batteries designed with more durability in mind tend to carry more material and higher density, this is usually reflected in a lower initial voltage, but longer discharge times. Digital testers can only determine realistically the initial internal resistance of the battery at the particular state of battery, not how much material is available. This can cause considerable difference between the indicated CCA data and the real CCA data obtained in a laboratory under real current loads to the appropriate battery standard specified. It should be noted that a vehicle fitted originally by manufacturer with an AGM battery should be replaced only with an AGM battery. Likewise, a vehicle originally fitted with an EFB battery should only be replaced by and EFB or AGM battery. If a battery is allowed to stand in a discharged state either on or off a vehicle for a period of time, a chemical reaction takes place which will permanently impair the performance and life of the battery, this process is called “sulphation”. Nevertheless, it should be clearly understood that wet (filled) lead acid battery is “a live” product. Whether it is in storage or in service, it has a finite life. All batteries once filled will slowly self discharge. The higher the storage temperature and humidity of the storage area, the greater the rate of self discharge.

Due to the high demands of the OEM market and the technical and manufacturing standards of Yuasa batteries, the rate of genuine manufacturing faults is negligible. They provide dependable starting power, exceptional corrosion resistance and the performance to handle the demands of today’s modern vehicles.Modern cars often require more powerful batteries to power air conditioning stop/start systems sat navs in-car DVD players and phones. The following options are available in the Yuasa range. Considerable investment in European manufacturing facilities, the establishment of a European network of 6 wholly owned companies, and the constant search by Yuasa to provide even more reliable power from smaller batteries, has resulted in the company's current position and proud claim to be No.1 in Europe! Undercharging occurs if the battery is not receiving enough charge to return it to a full state of charge, this will slowly cause sulphation. This fault can occur if the car is being used only occasionally for short journeys, or for Start-Stop urban motoring. Undercharging will occur if alternator voltage is low (13.6-13.8volts), the alternator belt is loose or battery cables are worn and causing high resistance – If in doubt seek advice from an auto electrician. Battery Problems Manufacturing Faults If you are collecting instore from our Swindon branch we can dispose of the old battery free of charge.