how should make good use of the laptop's lithium batteries do?

how should make good use of the laptop's lithium batteries do?(2)

So the first step is to reduce the charge current. I have friends working in the laboratory,

a variety of readily available equipment, where he is on trial for a moment. Power output in the

first string on a try resistance, the outcome of the current is reduced, but became intermittent

charge, which is not a good thing. Through trial and error, 4 Ohm is a more ideal value, this time

around 0.8A charge current is, very stable. This is only run through the machine's current

power supply interface, the dell TC030 battery charge current estimated number of large, it

should be slightly larger than 0.2C. Specific to a different machine, this value may be different.

With the addition of the increase in battery voltage, charge current will be reduced, but

decreased only slightly less than 0.05A. In such a state of charge, charging circuit seems to be

not working, the battery indicator light is not bright. Such as the battery voltage up to 12.6V,

charging circuits came into play into the battery trickle charge, at this time whether the series

has resistance does not matter, the charge current by the charge control circuit, the last full

charge after the end of the circuit automatically charge. The entire charge time is about 5.5

hours, if not resistance, charging time is about 3.5 hours. Lithium-ion batteries is very precious,

good charge control circuit is necessary. This charging method can reduce the charge current,

battery life, while at the same time the use of the books of the original charge of the charge

control circuit, it is also relatively simple to achieve, just buy a plug (from the power supply into

books The kind, it is best to buy two, referred to the back of a method also used to good quality)

and a can of resistance, resistance attention to the larger head, above, after all, there are about

2W of power Otherwise, it would be more heat resistance, the best use of their constant

resistance to be a wire, the wire resistance of the resistance and temperature has nothing to do

basic. But the shortcomings of this approach is obvious, that is not in charge of the work at the

same time with books. Another charge when there will be a strange phenomenon, I do not write

omitted here, you try to know, the good news is this phenomenon into the trickle charge after

the state disappeared. Charging time is not a big deal, anyway, before the charge to sleep at

night, wake up the next day on the charge Well, of course, if you are a person who goes to bed to

bed or short-time special, it is a different matter.

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