1. Introduction
The nickel-cadmium battery is the
most reliable battery system available
in the market today. Its unique
features enable it to be used in
applications and environments
untenable for other widely available
battery systems.
It is not surprising, therefore, that the
nickel-cadmium battery has become
an obvious first choice for users
looking for a reliable, long life, low
maintenance, system.
This manual details the design and
operating characteristics of the Saft
Nife pocket plate block battery to
enable a successful battery system to
be achieved. A battery which, while
retaining all the advantages arising
from nearly 100 years of
development of the pocket plate
technology, can be so worry free that
its only major maintenance
requirement is topping-up with water.
For the valve-regulated and
photovoltaic pocket plate ranges,
Ultima and Sunica, specific technical
manuals are available which address
the particular characteristics of these
ranges.
6.7 Cycling 14
6.8 Effect of temperature on lifetime 14
6.9 Water consumption and gas evolution 16
7. Battery sizing principles and sizing method
in stationary standby applications
17
7.1 The voltage window 17
7.2 Discharge profile 17
7.3 Temperature 17
7.4 State of charge or recharge time 17
7.5 Aging 18
7.6 Floating effect 18
8. Battery charging 19
8.1 Charging generalities 19
8.2 Constant voltage charging methods 19
8.3 Charge acceptance 20
8.4 Charge efficiency 22
8.5 Temperature effects 22
8.6 Commissioning charge 22
9. Special operating factors 23
9.1 Electrical abuse 23
9.2 Mechanical abuse 23
10. Installation and storage 24
10.1 Batteries on arrival 24
10.2 Cell oil 24
10.3 Emplacement 25
10.4 Ventilation 25
10.5 Preparation for service 26
11. Maintenance of block batteries in service 27
11.1 Cleanliness/mechanical 27
11.2 Topping up 27
11.3 Capacity check 28
11.4 Changing electrolyte 28
11.5 Recommended maintenance procedure 28
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