We hear many concerns about the short life span and short circuiting of thier laptop battery. This is difficult to determine. Actual laptop battery running time depends upon the power demands made by the equipment. The use of the monitor, the hard drive and other accessories result in additional drain upon the battery, effectively reducing its running time. The total running time of the battery is also dependent upon the design of the equipment. Generally, a new IBM battery will run at least as long (and usually longer) as your old battery did when it was new.

If you consistently use your laptop just a couple of hours at a time on IBM ThinkPad T20 battery power, and then connect it to the AC adapter to recharge it, over the period of a few months the battery will “lose track” of how much charge it really holds. This is called shallow chargeing and not recommended.

Actual battery run-time depends upon the power demands made by the equipment. In the case of notebook computers, the use of the monitor, the hard drive and other peripherals results in an additional drain upon the battery, effectively reducing the battery’s run-time. The total run-time of the battery is also heavily dependent upon the design of the equipment. To ensure maximum performance of the battery, optimize your computer’s power management features. Refer to your computer manual for further instructions.

Turn off or remove devices that you aren’t using. Many universal serial bus (USB) devices use power just by being connected. If you use a USB mouse, you can save power by disconnecting the mouse and using a touch pad or tablet pen. If you use a USB flash drive, unplug it when you’re not using it.

Personal Computer Memory Card International Association (PCMCIA) cards and integrated wireless devices also use power. If you don’t need these devices while you work, turn them off.

These power-saving tips can help you get the most use from a single IBM ThinkPad T20 battery charge and avoid the inconvenience—and the potential embarrassment—of having a dead battery.

Please note and following the below don’ts:
   1. Do not short-circuit charger or battery. A short-circuit may cause severe damage to the battery.
   2. Do not drop, hit or otherwise abuse the battery as this may result in the exposure of the cell contents, which are corrosive.
   3. Do not expose the battery to moisture or rain.
   4. Keep IBM ThinkPad T20 battery away from fire or other sources of extreme heat. Do not incinerate. Exposure of battery to extreme heat may result in an explosion.