HANGCHA CDD12-AC1 - Page 43

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Daily charging
·The storage battery that has been made first
charging and used in normal condition, then
charged again, it is named daily charging.
·Its way is almost same as the first charging.
·The recharging volume is 1.2 times than the
last electric discharging. But the new storage
battery’s former five times’ charging volume
should be 1.5 times than the last electric
discharging.
·During any charge, the temperature of
electrode should not exceed 45℃, otherwise
it should be taken measures such as
reducing artificially charging current or lowing
the temperature. If the temperature still does
not drop, you should stop charging till the
temperature drops down.
Adopt intelligent charging to do daily charge,
the former five times of new battery should do
equalizing charging according to operation
instructions of intelligent charger.
Equalizing charging
·During using of the storage battery, it often
occurs to disequilibrium among the voltage,
density and capacity.
·Compared to most of the batteries, several
storage batteries’ proportion of voltage and
electrolyte rises slowly during the course of
charge and discharge, its storage battery’s
proportion of voltage and electrolyte
declines faster than most of other batteries.
·Make equalizing charging in the following
case：
a. discharge voltage often drop down
final voltage;
b. discharge current is often larger;
c. not charge in time after discharge;
d. the electrolyte is mixed with impurity
with a little harm;
e. It often be charged deficient or has not
been used for a long time;
f. Check or clean sediment after taking
out the storage battery group
The way of equalizing charging：
(PCA Automatic Charger Operation
Instruction)
① Firstly, charge the storage battery
normally, and then rest for 1 hour after
the end of charge.
② Charge it again with the second phase
current of normally charge until the
electrolyte gives off a large number of
bubbles, and then stop charging for 1
hour.
③ Do it several times as mentioned above
until the voltage and the density keep
invariable and the storage battery gives
off a large number of bubbles
immediately when charge again.
Additional charge
·If one day’s work cannot be fulfilled in one
charge, carry out additional charge during
breaks.
·When the temperature of circumstance is
low, carry out additional charge.
Charge for long-term storage
·Carry out equalizing charging before storing.
·Carry out equalizing charging once every 15
to 30 days during the storage period.
The proportion and level of electrolyte
WARNING
 If the level of the electrolyte is low,
using the storage battery will cause the
storage battery over-heat and shorten
the storage battery’s service life.