Sony VGN-AR170GU1 - Manual (Page 145)

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Precautions
On Using the Battery Pack
❑ Do not leave the battery pack in temperatures above 140°F (60°C), such as in a car parked in the sun or under direct
sunlight.
❑ Battery life is shorter in a cold environment. This is due to decreased battery efficiency at low temperatures.
❑ Charge the batteries at temperatures between 50°F to 86°F (10°C to 30°C). Lower temperatures require a longer charging
time.
❑ This computer is designed to operate only with genuine Sony batteries.
❑ While the battery is in use or being charged, the battery pack heats up. This is normal and is not cause for concern.
❑ Keep the battery pack away from all sources of heat.
❑ Keep the battery pack dry.
❑ Do not open or try to disassemble the battery pack.
❑ Do not expose the battery pack to any mechanical shock.
❑ If you are not using the computer for an extended period of time, remove the battery pack from the computer to prevent
damage to the battery.
❑ If, after fully charging the battery pack, the battery power is still low, the battery pack may be reaching the end of its life
and should be replaced.
❑ You do not need to discharge the battery before recharging.
❑ If you have not used the battery pack for a considerable amount of time, recharge the battery.