Replacement For IBM THINKPAD T42 Laptop Battery / Notebook batteries

• 
  Compaq presario 1600 laptop battery
  Compatible with presario 1200A , presario 1800 , presario 1830
  
• 
  Compaq presario 1700 laptop battery
  Compatible with evo n800 series , presario 2800 series
  
• 
  Compaq presario r3300 laptop battery
  Compatible with presario x6000 series , presario r3240us
  
• 
  Acer travelmate 6000 laptop battery
  Compatible with travelmate 800 , 6600 series
  
• 
  Acer travelmate 2300 series laptop battery
  Compatible with aspire 1680 , aspire 1690 , travelmate 4100
  

Battery and Company Information

How to store battery when it is not in use for a long time? It should be fully charged or discharged?
Storing the batteries at full discharge for long period of time will have the THINKPAD T42 battery cells lose their activity, even have the control circuit protection self-closed which resulted in its inability to be re-used. Storing the THINKPAD T42 laptop batteries at full charge will have battery safety jeopardized. The best way to store the batteries is to keep the batteries at cool and dry places at optimal temperature of about 20 degrees with only about 50% capacity remained. Off course, getting the battery out every month for use is the best way to keep the battery at excellent storage state and THINKPAD T42 battery power free from flowing away completely which could damage the battery.

How to charge your new replacement laptop battery properly
Some laptops with lithium-ion THINKPAD T42 batteries use technology of SBS brightness battery system, which can measure batterys life accurately. Although lithium-ion battery has many merits, we still need to master some professional charge method to prolong IBM THINKPAD T42 batterys life and made it maintain long time power supply. Your new THINKPAD T42 laptop battery requires three complete charge/discharge cycles before use and achieving maximum capacity. It means the battery would have to be charged fully and then be discharged fully. Repeat it three times before starting to use the THINKPAD T42 battery. By this way, batterys internal chemical materials can be activated and its internal chemical reaction can come into the optimal state. After the activation, the battery can be charged and used freely. But the battery will have to be discharged completely once a month so that the battery activity can be released by such deep discharge and battery life can be maintained. If battery is idle for over 3 months, it is also necessary to conduct 3 cycles of complete charge and dsicharge to ensure that the battery is activated. You must control the charge time commendably when you use a Ni-MH battery. Please remember not to overcharge continually, or it will shorten the batterys life. Furthermore, Ni-MH battery should be fully discharged before being charged. It also needs three complete discharge/ charge cycles before starting to use it. Most users are used to using Alternating Current instead of a battery for power supply when they use laptops. Actually the battery needs to be used at least once or twice per month to release the battery power completely. Then fully charge the battery with AC power once. Please remember that it is always good for rechargeable batteries to use up the battery power before giving them a full charge. Because the li-ion battery used by laptop has its own laziness and would lose its activeness when being idle for long time. It needs to be reactivated. It is suggested to take out the battery from laptop when it uses AC power supply indoor to avoid having the IBM THINKPAD T42 battery get charged frequently. It is also suggested to shut down the laptop so that battery can be fully charged. Do not remove the AC power during charge. In addition, the power of battery can easily be used up and most laptops have only one battery. For this reason, some manufacturers have developed a fast charge feature that enables the battery to replenish its power at the fastest pace after power draining up. One hour charge can give the THINKPAD T42 battery back over 90% of its power. Why is not 100%? Because frequent fast 100% charge will greatly shorten the battery life. In order to prolong battery life, fast charge will have to be switched to slow charge(namely Constant Voltage charging method) when battery reaches 90% charge. For a common laptop, the best charge method is to turn off the laptop when its battery is being charged. The charge time will be shortened by 30% by this method.

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How can we sell THINKPAD T42 battery at such a low price
We are dedicated to offer you the highest quality IBM THINKPAD T42 laptop batteries with reasonable prices. All of our batteries are directly purchased from various reputable manufacturers throughout the world. Through this direct selling model, middleman cost is greatly minimized and so WE PASS THOSE SAVINGS TO YOU! In addition, because of our sophisticated and vertically integrated supply chain system and streamlined order fulfillment system, we are able to offer high quality IBM THINKPAD T42 laptop battery with amazing low price and excellent customer service.