Narada Power Source Co., Ltd.
Eos operation manual V5.3
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Normally, the batteries are fully charged when the value of charge current is not
changed for continuous three hours at the stage of constant voltage charge,
Sometimes, we need to charge a battery in a short time, we can raise charge
current, but not higher than 0.25C
10
A.
Fig .3-4 The relationship between DOD and charge time
6. Storage
The storage area must be clean, ventilated, dry and without direct sunshine. All lead
acid batteries lose capacity when standing on open circuit because of self-discharge.
The result is that the voltage of open circuit is decreased, and the capacity also
decreased. The self-discharge rate is related with ambient temperature. The
self-discharge degree is smaller when the ambient temperature is lower, otherwise is
larger. Batteries should be supplementary charged if they have been stored for six
months or the open circuit voltage is lower than 2.10V/Cell. The equalization charge
method should be adopted. All batteries, which are ready to store, should be fully
charged before storage. It’s suggested to record storage time in periodic maintenance
record and record the time when another necessary supplementary charge should be
made. The quality certificates of Eos batteries record the latest charge time of the
batteries, next charge time can be calculated according to this charge time.
7. Maintenance
In order to assure service life, the batteries should be correctly inspected and
maintained. The maintenance methods of EOS batteries are recommended as follows:
7.1 Monthly Maintenance
— Keep the battery-room clean.
— Measure and record the ambient temperature of the battery-room.
— Check each battery’s cleanness; check damage and overheating trace of the