This means reduced electrical capacity of the battery. With an inbuilt pulse charging feature active across each of the 3 stages, this charger provides a safe method of restoring deeply discharged batteries. The worst part about sulfation is even though you can get rid of sulfation, the process itself cannot be reversed. The SCA 12V 4 Amp battery charger is a sophisticated 3 stage pulse charger, utilising switch-mode technology, designed to charge 12 volt DC Lead Acid batteries and AGM, GEL and Calcium batteries. If the battery is not fully charged, the lead sulfate inside it will start taking crystalline shape at the battery terminals, leading to sulfation. The only way of preventing sulfation is to let your car's battery charge fully. However, neither charging method is better than the other. These chargers use positive pulses with brief negative pulses between positive ones to charge the battery. The other type consists of chargers using negative pulse charging (also called reflex or burp charging). The first type is the regular type where upon connecting with the battery, the charger uses pulses to check the state the battery is in, then uses constant current charging for the initial phase and switches to pulse charging later to maintain the charge. Hours: Monday - Friday, 9:00am to 4:00pm EST. Yes, there are two major types of pulse chargers. Address: Pulse Battery 8768 West State Road 236 Middletown, Indiana 47356, USA. Q.Are there different types of pulse chargers? This leads to breaking down of sulfate crystals, thereby increasing a battery's service life. Q.How does a pulse charger reduce sulfation?īy sending current in pulses, a pulse charger can charge a battery by applying high, instantaneous voltages without overheating the battery. A pulse charger is said to work with both regular and valve-regulated batteries. These pulses carry DC current and have a strictly-controlled rise time (time taken by a signal to change from specified low value to specified high value), pulse width, frequency and amplitude. So the bottom line is a pulse charger can be used if intended for short term usage only.A pulse charger feeds a series of voltage or current pulses into a decaying battery. For AMPTRON LiFePO4 batteries, the charger should return to bulk/boost charging around a minimum of 13.2V, but many lead acid chargers only switch back around 12.8V which will mean the battery is already down below 30% before the charger properly starts charging again. The trigger to switch back from float to bulk/boost is usually based on battery voltage, however many lead acid type chargers have this voltage threshold too low for Lithium batteries. It is very difficult to estimate the magnitude of this impact in terms of a % of the total battery life, since there are many factors that will influence the overall battery life.Īnother potential issue with most Lead Acid charge profiles, is when the charger completes its charge cycle and switches over to the float charge mode, it can take too long to return to the bulk/boost charge phase again. However, if a pulse charger regularly exceeded the maximum voltage, then the internal BMS will be constantly disconnecting/reconnecting the cells, and besides that, the internal MOSFET switches can't always react that quickly so for small fractions of seconds, the cells will be exposed to over voltage situations.Īs a result of the above, both the cells and the Battery Management System over time will start to suffer some damage/excessive wear that will affect the overall battery life. If a constant voltage charger exceeds the maximum voltage of the batteries, then the internal Battery Management System will simply disconnect without longer term impact. One of the issues with a pulse charger as opposed to a constant voltage/constant current charger, is that the voltage peaks of the pulses are not that well controlled, and are often above the maximum allowed voltage. The simple response is yes, the batteries can "cope" with pulse charging in the short/medium term, however if a pulse charger is used constantly then there is a longer term impact. Response - The answer to this interesting question is not a simple yes/no response. Pulse charging aims to break the crystals down so they will dissolve faster and restore capacity. Question - Can the charging management system contained inside AMPTRON batteries cope with pulse charging that is utilized in some chargers?
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