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4.5.3 Maintenance of battery and matters for attention
(1) The surface of battery should be kept clean and dry. Its terminal and wiring parts
should be frequently maintained and loosening or poor contact found should be timely
eliminated.
(2) No conductive articles are allowed to put on battery to avoid its short circuit.
(3) The first charge of new battery before use is the initial charge and charges in the later
use course are the common ones. The charging time of the common charge is different
with battery capacity and discharging degree and usually discharging of 70%～100%
needs continuous charge of about 8～12 hours.
(4) Open the filling cap during battery charging and close it when charging is finished.
(5) Hydrogen and oxygen gas are separated out during battery charge, therefore, ensure
good ventilation condition and prohibit the fire and smoke to prevent explosion.
(6) In use and charging course, the natural evaporation and electrolysis of water content
in electrolyte will result in level decrease of electrolyte and increase of density, so
distilled water should be frequently added in order to keep height and density of
electrolyte normal.
(7) In the course of use, the excessive discharge (i.e. the voltage drop of monomer battery
is lower than 1.70V) and excessive charge should be avoided, because, these would
seriously affect the service life and performance of battery.
(8) Battery after use should be charged within 24 hours. Failure to charge the battery
timely, undercharge, excessive discharge or unused for a long time without additional
charging will vulcanize polar plate of battery and result in performance degradation and
use difficulty when serious.
(9) In the course of use, equalizing charge should be made to the battery once a month so
that all monomers of battery can reach well-balanced and good state when in use.
(10) For battery compartment without liquid leakage hole, check if there is hydrops
inside of compartment every month. If there is electrolyte spillage caused by improper
adding of distilled water, please clean the hydrops in the compartment with sucker in
time.
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