Datamars 0.5 J Guia Del Usuario página 86

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Maintenance
Clean the solar panel regularly with a soft _loth using glass _leaner or a
mild solution of detergent and water. This will ensure that the solar panel
fun_tions effi_iently.
Caution!
Do not immerse the energizer in water.
When transporting the energizer, prote_t the solar panel to prevent the
glass surfa_e from being damaged.
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Either the battery is not _onne_ted
properly, or the battery is dead.
Remove the energizer out of the dire_t
sun, open the energizer and dis_onne_t
the battery. Re_onne_t the battery and
fa_e the energizer towards the sun to
_harge the battery. If the issue persists,
_onta_t your lo_al representative to
arrange testing by an approved servi_e
agent.