the battery discharge:
People had exercise, and consumption. Battery is the same electric charge, they must discharge. In addition to the normal discharge in use outside, why do they must discharge the battery run out of it? come listen to me 11. When our camera because the battery needed to charge the battery runs out, they noticed that these exhausted batteries inside the other electrical appliances can continue to make use of? And every cell in the same electrical length of time used different? This illustrates the issue that the capacity of these batteries is inconsistent. Why does this happen? The reason is: they use the electrical appliances, most are six or more batteries acer aspire laptop batteries pack made of thread, according to Ohm's law, series circuit current is equal in every single place, as each cell's internal resistance can not be consistent (even simultaneously, the same production line produced by the battery), then both ends of each cell's voltage drop and power consumption, won't the same. This causes the battery in the same circuit imbalance to the final result of which one or several batteries a long time, "enough to eat, put couldn't finish," the state, until its destroy. The reason they were late on the battery discharge, while abhorrent to eliminate memory effect, on the other hand is to make each cell to balance as much as possible, with the full, complete with the release, synchronization. How then do they discharge it? keep in mind this truth: "discharge, be definite to separate each section of the battery discharge!" Otherwise, the opposite, not as tightly. Discharge resistor or light bulb can be purely resistive element such as to discharge, resistance controlled at 1.5 to 4 ohms, slow discharge, the battery is tiny fever. Practice, the proposed use of two parallel 3.8V flashlight electrical discharge beads, then 1.7 ohm resistor, the discharge current 700mA, less than 10 minutes, light bulbs went out on the discharge finish, it is intuitive powerbook battery a1079 latitude cpi battery . you can also use the process of discharge resistors + bulb, survey about resistance, controlled at 1.5 to 4 ohms on it. they can be modified to produce low-quality battery charger discharger they wish, is to buy a poor quality charger (about 5 dollars), to better choice of housing, which on conversion benefit, and then remove all the electronic parts within the charger, retain only circuit boards and battery clip, and then welded at both ends of each battery clip on our light bulb or resistor, etc., so they put on the do-it-yourself Electrical better.
Slightly different and Ni-Cr battery, nickel cadmium batteries is constant pulsating direct current to charge, and Ni-MH battery using a tiny ripple, the more smooth the DC charging. In urgent cases, six chargers can interoperable. Charge for the charge current should be master, how to estimate the appropriate charge current then? It depends on the battery's capacity to select. In general, the civil standard 16 hours of battery charging, the charge current is: the battery capacity / 10, in units of mA. there's fast charge, fast charge current standard of 2.5 to 5 times, there is no uniform standard. they use the charger should try to make use of the standard charger, the charger's charging current to choose what? When they buy a charger, a multimeter to find a JS or own multimeter, plug the charger power supply, multimeter income into the DC current 500mA stall, red table report access battery charger chip, black table report connected with negative film, which , they can approximate by the multimeter readings to choose the charger's charging current, because the battery's internal resistance is tiny, so the multimeter readings close to the actual charge current. they can also use a considerable number of automatic charger, the benefits of such a charger is a charger automatically stops, do not people worry about. In addition, they ought to try to keep away from using fast charging, fast charging, the battery's internal chemical reaction is extreme, high temperature, which will speed up the aging of the battery and shorten battery life. However, quick charger when going out or emergency, but useful .
