![]() The Abrams main battle tank has been around since the early 1980s. If/when using the slow mode 150mA trickle current, the automatic cutoff feature is disabled and the user will have to compute for appropriate charge time and cut-off.This large-scale, Big Tank Series R/C model assembly kit recreates the formidable modern U.S. which is why such chargers typically have 500mA as the lowest current setting. Voltage peak/full charge detection feature among automatic chargers does not work below 500mA. hence the need for conservative compensation, constant monitoring and vigilance. Overheating may overtake actual charging progress. Faster temperature rise, hoever, increases risk of heat damage especially when using manually operated chargers. Transfer efficiency goes up as charge current approaches, or exceeds, battery capacity. Some online calculators offer a choice between 20% (for fast charging) and 40% (for slow charging). The greenbattery online charge calculator compensates by 20%. SLOW CHARGE (current is 1/8 - 1/10 of battery capacity) - compensate by 40-50% QUICK CHARGE (current is 1/4 to 1/6 of battery capacity) - compensate by 30% Without going into the technical details.įAST CHARGE (current is more than 1/3 of battery capacity) - compensate by 10-20% I knew it had ot be accounted for, but was not aware it was as high as 30%. ![]() The heat generated in the battery and the charger is a conversion of energy so it stands to reason. Nobody ever told me that before.(30%) It makes sense. Hence, the charge formula should read Ĭharge time = ( battery mAh capacity / charger mA ) x 1.3 ![]() There's some energy lost during the process. ![]()
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