| 摘要 |
<p>Provided is a battery pack which is capable of accurately informing the state of charge of the battery pack. This battery pack (100) has: chip-type LEDs (71 to 75); a printed circuit board (40) on which the chip-type LEDs (71 to 75) are mounted; a second case (20) which is provided with openings (21 to 25) for the LEDs, the openings (21-25) corresponding to the chip-type LEDs (71-75); and a moisture-proof resin (60) which is provided so as to cover the chip-type LEDs (71-75) on the circuit board. The portions of the moisture-proof resin (60) which are located between the chip-type LEDs (71-75) have a less height than the portions of the moisture-proof resin (60) which are located on the chip-type LEDs (71-75), the height being measured from the surface of the printed circuit board (40).</p> |
