Alpha Technologies Lomain Ni-Cd Pocket Plate Battery User Manual
Page 4
745-680-B10-001 Rev. A
4
Table of Contents
Safety Notes .......................................................................................................................... 6
Battery Safety Precautions .................................................................................................... 7
1.0
Introduction ................................................................................................................. 9
1.1 Alpha Lomain Theory of Operation ......................................................................11
1.2 Safety terminal ................................................................................................... 14
1.3 Electrode Frame ................................................................................................. 14
1.4 Positive and negative electrode plate ................................................................ 14
1.5 Electrolyte .......................................................................................................... 15
2.0 Battery range and applications ..................................................................................... 16
3.0 Electrochemistry of Ni-Cd batteries .............................................................................. 16
4.0 Operating Features ....................................................................................................... 17
4.1 Capacity .............................................................................................................. 17
4.2 Cell voltage ........................................................................................................ 17
4.3 Internal resistance ............................................................................................. 17
4.4 Impact of temperature on cell performance and available capacity .................. 18
4.5 Impact of temperature on lifetime ...................................................................... 19
4.6 Short-circuit values ............................................................................................ 19
4.7 Open circuit loss ................................................................................................. 19
4.8 Cycling ............................................................................................................... 20
4.9 Topping up interval ............................................................................................. 21
5.0 Sizing the batteries for standby applications ................................................................. 22
5.1 Voltage window ................................................................................................... 22
5.2 Load profile ......................................................................................................... 22
5.3 Ambient temperature .......................................................................................... 22
5.4 Recharge time and state of charge..................................................................... 22
5.5 Aging ................................................................................................................... 22
5.6 Floating effect -Voltage depression .................................................................... 23