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The cooling system blows cool air into the battery & as a result when high temperatures occur in the battery it cools the battery so the life of the battery is extended + the charging process is accelerated as well. The Makita DC18RC battery charger always lights up red/green and the battery cannot be charged. There are several possible causes for this problem:
Makita Lithium-ion battery chargers evenly charge throughout all the cells in the battery, on discharging the battery draws evenly resulting in an optimum charge. The products should be sent to repair or maintenance, if the yellow warning light will frequently flash. Cells in some other brands of batteries are not charged evenly, resulting in cells not being used completely, so workloads are decreased at a charge.Built-in CPU - gathers information from the battery's memory chip to determine optimum charging method
The CPU built into the DC18RC charger communicates with the individual batteries and analyses its condition, the battery may have been abused by heat, overdischarging, or weathered by cycle-age. After charging or before attempting any maintenance or cleaning, unplug the charger from the power source. Pull by plug rather than cord whenever disconnecting charger.Makita’s 18V & 14V batteries have a built in memory chip that records the battery usage history. While the battery is connected it will transmit the data to the charger
SAVE THESE INSTRUCTIONS – This manual contains important safety and operating instructions for battery charger. The followings show the symbols used for the equipment. Be sure that you understand their meaning before use. To keep your batteries running at their best, the DC18RC has a forced cooling system to prevent overheating which will give your batteries a longer service life. Sold as a single unit. With finish of charge, the charging light will change from red one to green one and the melody sound or buzzer sound (a long beep) comes out to notify completion of charge. This means that during the loading of the charging voltage, charging current, and temperature is held in the holes
The Makita DC18RC Charger is suitable for charging 14.4v & 18v Makita batteries. The cooling system blows cool air into the battery. As a result, high temperatures occur in the battery, so that the battery life is extended, and the charging process is accelerated. DC18RCFeatures:
Built-in cooling fan system that blows cool air into the battery, which keeps the battery cool during the charging process. This helps to extend the overall battery life and accelerate the charging process Charging delay: If the battery has cooled down or is too cold, there may be a charging delay. In this case, you should bring the battery to room temperature and try again. Charging delay: If the battery is cooled down or too cold, there may be a charging delay. In this case, you should bring the battery to room temperature and try again. The Makita DC18RC analyses the data stored in the battery chip to decide on the best charging method at that time.
As a result, high temperatures occur in the battery, so that the battery life is extended, and the charging process is accelerated
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