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Since laptop battery has experienced several generations of development, great changes have happened at the  size, capacity and type. Currently nickel-hydrogen and lithium are widely used at laptop batteries, the battery is normally provided by shell, battery, charge and discharge control and protection circuitry. Laptop batteries is very important for the machine, most users have troubles with their laptop batteries, more or less. Protection circuit is a very important part for most kinds of laptop batteries , when the battery temperature is too high or excessive discharge current , the battery power may automatically shut down, which is controled by the protection circuit. The temperature beyond the preset temperature of the battery, protection circuit will automatically power off  to protect the battery and laptop computers.

It’s very large damage for the battery to have the battery runing at high-temperature environments, so we should avoid this situation. But if this situation happen to you and your battery is shut down automatically, don’t worry about that and put the battery in a cool place for a moment, then restart to use it. In addition, if  the performance of battery is much poor than before, you should fully charge and discharge times to solve the problem, but the correction should be noted that we cann’t do this too frequent, otherwise it will affect the battery life.

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Q: Why the standby time of thinkpad battery is getting short?
A: The battery life is calculated according to the number of charge cycles, with the increase of the number of charge cycles, the fully charged power of battery will gradually reduce, when the number of charge cycles reach about 300, the fully charged power of battery will be drastically reduced.

Q: Why the running time is not as long as the standby time marked at the description?
A: The running time is based on the current running watts of the computer which decided by the expressions: Running time = fully charged battery / computer running Watts.

Thinkpad t20 series battery

Q: How to low down the running watts of thinkpad computers to extend running time?
A: Using “The Longest Battery Life” power management solution in the power management devices, close the wireless LAN and Bluetooth, and try not to use external USB devices or other equipment, do not use CPU intensive calculation procedures and operations.

Q: Thinkpad battery cannot be 100% charged.
A: The battery power is higher than the designed capacity when the new battery is fully charged, if stop charging when the battery is charged the designed capacity, the battery is not fully charged and it shows that it’s not 100% charged. With the number of charge cycles accumulated the fully charged power will gradually decrease, and then it display the battery is 100% charged.

Q: When unplugging thinkpad adapter, and found the screen darkened, FN + Pgup and PgDn to adjust the brightness, the brightness can not be saved after restart the computer.
A: The default power management solution is optimize the power supply, the computer is in a low-power mode when unplug the adapter, the screen brightness will be reduced. If you want to define a screen brightness level, create a new power management program in the power management device, then you could choose the right screen brightness when using the battery or using the adapter.

Q: Why the battery power is still decrease although the adapter is being used?
A: self-discharge is the nomal phenomenon of rechargeable battery.

Q: How to preserve a battery when I don’t need it in a long time?Answer: If in a long time you do not need the battery, you can have this battery be charged to 60%, and then put it in a plastic bag and put it in a cool addition to make it a good save. Every six months it should be discharged and charged.

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I used to be have a Canon A200 (200 million pixels) which is using a 2 V battery many years ago. But the trouble of this digital camera is that the battery alarm, unable to boot-strap. 

The major reasons are:

1. Ni-MH battery self-discharge. Self-discharge is serious, the battery baven’t been used for some time, resistance is greater, a number of voltage drop, the camera will not crash on opening.
2.Battery alarm is caused by the self-reson of camera. Some people say that this is the design of Canon cameras, I would like some of the reasons for it, Canon’s camera really is designed for alkaline batteries. However, at the situation of low voltage, the current of camera is too much, for various reasons (such as contact resistance) are caused by the bad use of rechargeable batteries. In fact, the most suitable for this camera should be used in alkaline batteries (it should be said that the camera is designed for alkaline batteries, ordinary alkaline batteries in general as well), 1.5V Voltage, 2 3V. Ni-MH battery only a 1.2V, it is much lower.

To solve the problem:

It is best you change the camera, replaced with one using lithium battery, 3.7V, but this is unrealistic, I am not rich.

High-voltage lithium, small current, the impact of contact resistance will be smaller;

Low self-discharge of lithium, put it out of using for some time, there is nothing spoilage. This is very important. 

Then let’s make a fake battery, which it installed a diode buck! Become equivalent to the market 3V lithium power. 
OK, hands started to do so, a battery 14500 lithium-hole mounted (DLG, and failed to protect the plate, only 3.6V, 700mAH), another hole pretend cell batteries (LED).

There are no protruding battery, not fitted, then solder a small bump.

It’s very difficult to make the fake batteries, I had made one, but it’s a string of two diodes, have 1.1V drop, but I am feeling good. In general much better than used to be, the battery alarm issue is done and the situation that can not open the camera have not happened again.

Related sponsor link: CANON NB-1LH battery, canon nb-2lh battery, canon bp-511 battery, dell Inspiron 700m Battery,

Why is my dell studio 15 battery not working? I have this battery for nearly two year but never used it, and the battery power started dropping at an alarming rate when I used it again. Maybe that is the problem.A message said replace battery,when I took the battery out ,it appears to be rechargeable!!??.

This is a question asked by one client of hunt360.net. I think this is a typical question that offen asked by laptop batteries users and I believe that it is an universal accident  that offen happened, so I would like to share the answer at the blog.

Generally, laptop batteries lose their ability to hold a charge when they are not used on a regular basis. Conditioning the battery once a month will help to recharge the battery and help the cells remember how to hold a full charge. If you let a battery drain slowly due to no use, eventually you will have a dead battery.

Laptop batteries only last 18-24 months to begin with and if it is not being charged and discharged regularly, the cells have no way to learn how to hold a charge. It is very important to initially condition the batttery with 2-4 complete charge/discharge cycles and then maintian it once a month to get the best performance.

How to charge a laptop battery?

Point of view 1: do not recharge  battery until the power is all used up and the laptop shutdown automatically. And, recharge every time must be full filled. 

Point of view 2: the battery is no need to use the time to deliberate about, you can charge your battery as you like at any time.
Proposed method: The authors suggest that the majority of the students with the methods of approach are the same. In fact, both nickel-metal hydride and lithium batteries have a memory effect. As you know, the nickel-hydrogen batteries have a memory effect, but very few people know that the lithium also have memory effect, but its memory effect is lower than nickel-hydrogen battery. It  is completely misleading that some business advertising that lithium batteries have no memery effect. Since then the battery has a memory effect so that we should note that, before charge you battery the battery power should be used up as far as possible,  but there is no need to deliberate to the computer must automatically shut down. In fact, it’s good for your battery that charge it when the power is less than 3% . As for the point of view 2, the author is completely disagree, I have already mentioned the laptop battery, whether nickel or lithium hydroxide, which have a memory effect, so this way will makes the battery life significantly reduced.

Apple Macbook Pro 13 Inch battery, 15 Inch Apple Macbook Pro battery, Sony PCGA-BP2S battery, Dell Inspiron 1525 Battery

We are finishing this article, first, to allow you to open eyes, showing you the unique secret maintenance personnel weapons, and people who read, will understand that what about the so-called original battery.

 Repair not only the replacement of  battery by battery, the battery maintenance may not work, may be very bad performance.  This issue is because the EEPROM chip inside the procedure.  The procedure is stored inside the battery before you change the information contained in the battery end-of-life information. Smart Battery Workshop, which can change the contents of memory, causing the battery can work like new.

Approach to repair is very simple, and does not require special knowledge and skills. Only need to connect to the adapter’s EEPROM, and then in the software in accordance with “Reset” button.  All the necessary Will auto-complete, and then you need to assemble your battery, and then installed on the notebook computer.

Smart battery data channels provided are in accordance with the read-only via the computer parallel port / smart battery bus adapter directly to the battery interface (57 data area). All of the code tags are converted into the language of our common humanity. Smart battery to allow the user to restore the EEPROM to the initial value (which will be inside the battery to clear the use of past records) in addition to manufacturers of information, including the current system information. And you find a permanent error data (if the battery was locked this is the need to unlock the ). so that you can re-packaged in a “new” battery.  These don’t need any electronic knowledge, all the work will be done automatically. Do not need to involve programmers just click “Reset” button. Can read and write frequent battery inside where the content of EEPROM chips. Directly from data stored in EEPROM. “EEPROM Read/Write” If you want to analyze the data which need only to enter the “EEPROM Read / Write” (just the chip to support an effective).

Smart Battery Workshop chip currently supports:

BQ2040/24C01/01N BQ2040/24C01/01N
BQ2040/24C02/02M BQ2040/24C02/02M
BQ2060/24C01/01N BQ2060/24C01/01N
BQ2060/24C02/02M BQ2060/24C02/02M
BQ2063/24C01 BQ2063/24C01
BQ2063/24C02 BQ2063/24C02
BQ2092/24C01 BQ2092/24C01
M37515/ S29L220 (SL220) M37515 / S29L220 (SL220)
PIC16C63A/24C01 PIC16C63A/24C01 (used in COMPAQ Armada M300, E500, M700, Evo and other models) do not support the Smart Battery System
M37516/AK6480A (80AF) (80AM) (80AR) M37516/AK6480A (80AF) (80AM) (80AR)
AS355D/S29L394A (SL394) (IBM ThinkPad T20 .. 23)
AS358D/S29L394A (SL394) AS358D/S29L394A (SL394)AS372D/S29L394A (SL394) (IBM ThinkPad R31 and other models) 
M37516/93C56 (Dell D600 D800 M500 and other models)
M37515/24C01/01M (IBM ThinkPad 390, Acer (Acer), as well as other models)
M37516/24C01/01M (IBM ThinkPad 390 and other models) 
M37517/SL194 (Sumsung battery Samsung and other brands)
PS331/25LC040 PS331/25LC040
PS334/25LC040 PS334/25LC040 
PS401 (includes internal FLASH ROM)
PS402 (includes internal FLASH ROM)
BQ2083 (includes internal FLASH ROM)
BQ2084 (includes internal FLASH ROM) 
BQ2085 (includes internal FLASH ROM)
BQ8011/24C01/01N BQ8011/24C01/01N
Toshiba 24C046 Toshiba 24C046 
the software not support  part of M37516 firmware.

The chips involved in almost all of the IBM ThinkPad, DELL, Toshiba, HP and other laptop batteries. Such as dell xps m1730 battery, dell xps m1530 battery, hp pavilion dv6000 battery, dell inspiron e1705 battery

Free Download: Smart Battery Workshop 3.71 demo (1590KB)