The laptop battery cell

1 laptop battery there will be zero voltage or low voltage of reasons:

 a. Battery zero voltage;
 b. the Acer aspire 4745g battery from external short circuit or overcharge, anti-charge (force over-discharge);
 c. Battery by continuous high-rate high-current overcharge, causing the battery very core inflation, short-circuit the positive direct contact.
 (2) to prevent the laptop battery will be zero voltage or low voltage measures:

 a. Check whether the battery voltage and current;
 b. to avoid short-circuit;
 c. avoid the collision cell, the weight;
 d. HP Compaq business notebook 6910p battery voltage before recharging to off, then full charge needs to stop.