Psion Teklogix 7530 G2 Excessive Charge Duration, Indicator Flashing Red, Troubleshooting

Chapter 6: Peripheral Devices & Accessories

Troubleshooting

The LED directly below the slot in which a battery is inserted lights up immediately. A solid yellow LED indicates that the battery is being charged. If the battery temperature is outside 5° C to 39° C (41° F to 102° F), the LED flashes yellow until the temperature is acceptable. A fully discharged battery will normally take between 1.5 and 4 hours to charge. When the battery charge reaches 75%, the indicator flashes green. At full capacity, it turns solid green.

When the battery is fully charged, the charger stops applying power; the battery cannot be overcharged if left in the charger slot. The 75% charge indicator is handy if you need a quick recharge – it often occurs after less than an hour.

6.5.5 Troubleshooting

6.5.5.1Excessive Charge Duration

The charger is equipped with a recalibration function – a function that fully discharges and then fully recharges the battery. This process is necessary to recalibrate the battery capacity gauge internal to the battery. The charger attempts recalibration when:

•the battery capacity is at less than 30%, and

•the battery has undergone more than 40 partial charge cycles since the last full discharge.

A complete battery discharge takes between 1.5 and 4 hours to complete. When in discharge mode, the LED indicator flashes yellow. The recalibration function extends the charge time by up to 2 hours.

6.5.5.2Indicator Flashing Red

If the indicator flashes red:

•Remove all batteries and disconnect the mains power cable.

•Wait at least 20 seconds, and then plug the cable in again.

If any of the charge slot LEDs continue to flash red, the charger is defective and requires service. If all indicators are flashing red, there is a power supply problem and the charger requires service.

218Psion Teklogix 7530 G2 Hand-Held Computer User Manual