PROBLEM TO BE SOLVED: To promptly charge by suppressing the influence of path resistance.SOLUTION: A charging system 1 composed of an electronic apparatus 2, and a charging device 4 charging a lithium ion capacitor 28 of the electronic apparatus, comprises a temperature detecting portion 63 of the lithium ion capacitor, a charging circuit 6 making a charging current pass through the lithium ion capacitor, a charge abnormality detecting portion 64 monitoring temperature since starting the charge of the lithium ion capacitor detected by the temperature detecting portion, and a memory portion 645 storing the temperature when starting the charge of the lithium ion capacitor or the lowest temperature since starting the charge. The charge abnormality detecting portion determines charge abnormality when difference between temperature detected by the temperature detecting portion during charging and the temperature when starting the charge of the lithium ion capacitor or the lowest temperature since starting the charge exceeds a predetermined threshold value.COPYRIGHT: (C)2012,JPO&INPIT【課題】経路抵抗の影響を抑制して迅速な充電を可能とする。【解決手段】電子機器2と電子機器のリチウムイオンキャパシタ28に充電を行う充電装置4とからなる充電システム1であって、リチウムイオンキャパシタの温度検出部63と、リチウムイオンキャパシタに対して充電電流を流す充電回路6と、温度検出部に検出されるリチウムイオンキャパシタの充電開始からの温度を監視する充電異常検出部64と、リチウムイオンキャパシタの充電開始時の温度又は充電開始からの最低温度を記憶する記憶部645とを備え、充電異常検出部は、リチウムイオンキャパシタの充電開始時の温度又は充電開始からの最低温度に対する充電中に温度検出部に検出された温度との差分が予め定められた閾値を超える場合に充電異常と判定する。【選択図】図2
