Inbuilt into each Dot.Foto battery is a safety system which gives short circuit protection and prevents the battery from overheating. For Sony CCD-TR311, CCD-TR315, CCD-TR411, CCD-TR412, CCD-TR415, CCD-TR417, CCD-TR425, CCD-TR427, CCD-TR511, CCD-TR512, CCD-TR515, CCD-TR516, CCD-TR555, CCD-TR617, CCD-TR618, CCD-TR640, CCD-TR713, CCD-TR717, CCD-TR718, CCD-TR728, CCD-TR730, CCD-TR820, CCD-TR825, CCD-TR840, CCD-TR845, CCD-TR913, CCD-TR918, CCD-TR920, CCD-TR950, CCD-TR2200, CCD-TR2300, CCD-TR3000, CCD-TR3100, CCD-TR3200, CCD-TR3300, CCD-TR3400.
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