Disassembling the sealed head can cause damage to the light and will void the warranty.
Fenix recommends using an excellent quality battery.
If the light will not be used for an extended period, remove the battery, or the light could be damaged by electrolyte leakage or battery explosion.
Long-term use can result in O-ring wear. To maintain a proper water seal, replace the ring with an approved spare．
Periodic cleaning of the battery contacts improves the light's performance as dirty contacts may cause the light to flicker, shine intermittently or even fail to illuminate for the following reasons:
