Sony PRS-700 Users Guide - Page 116

Power Symptom Battery cannot be charged (The indicator does not light up). Battery life seems short. Cause or corrective action  Charge the battery within the temperature range of 50 °F to 86 °F (10 °C to 30 °C). Otherwise, the charging may be insufficient or may not start.  The operating temperature is below 41 °F (5 °C). This is due to the battery characteristics and not a malfunction.  You have not used the Reader for a prolonged period. Efficiency of the battery will be improved by repeatedly charging and discharging.  The battery needs to be replaced. Consult your nearest Sony Service Center.  The battery has not been given enough time to charge fully. Charge the battery until the indicator goes off. (The battery icon does not indicate remaining battery power during charging.)  The battery life becomes shorter if the built-in light is turned on all the time. ( page 32) Continued 116 US