C. Charge the battery at the recommended charge rate. If you cannot set the recommended rate, extend or reduce the charging time on a pro rata basis. For example, if the recommendation is to charge the battery at 4.0A for 6 hours (24Ah = 4.0 x 6), charge the battery for 12 hours if you can only set the charger at 2.0A (24Ah = 2.0 x 12). We receive data from battery manufacturers and this may be subject to change and / or manufacturing tolerances. CCA readings can be measured according to a number of international standard SAE, EN, DIN or IEC, Within the EN 50342: 2006 standard two requirements are listed: EN1 & EN2. Typical Conductance testers are calibrated toward EN2 standard, however the ETN numbering system makes it difficult for the normal man to understand which standard is being used on the battery.

It is good practice to wait for about 20 minutes for the gases to clear before removing the leads from the battery as some chargers remain ‘live’ and can cause a spark. This battery is ideal for drivers using one or more plug-in devices, such as phones, cool boxes, DVD players, and Sat Navs, and for drivers using air conditioning. Due to their increased starting capacity (CCA), these batteries are best for cold mornings. Features & Benefits: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 the battery is stored, handled or fitted incorrectly, if the connectors leads are hammered onto terminals, leads are not correctly fastened, the battery will have damage to casing and/or terminals. This is not a manufacturing fault. Yuasa are one of the world's largest manufacturers and suppliers of valve regulated lead-acid batteries with global manufacturing plants and an extensive marketing and distribution network throughout the UK and Europe. B. Never boost-charge any battery that is below 11.00 Volts as it will be too sulphated to accept a charge; scrap the battery or charge normally. They provide dependable starting power, exceptional corrosion resistance and the performance to handle the demands of today’s modern vehicles.

The majority of commercial chargers, particularly home-chargers, are of this type, and allow neither the voltage nor the current to be preset. Use the same procedure as for Constant Potential Chargers in the paragraph above. Boost ChargersThese maintain a fixed, constant, pre-set voltage throughout the charging period. The current cannot be set and will fall as the battery state-of-charge increases.