Cadex C4000 SERIES, User Manual

Page: 115 / 152

C-Code Tables
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Additional information
For more information on charging of SLA batteries, refer
to a separate manual entitled
"Analyzing
Rechargeable Batteries".
Important Do not exceed the manufacturer's
recommended charge current and voltage limit.
Observe battery temperature range.
15. Topping Charge Plateau (SLA)
CODE
O.10C 0
O.01C 1
O.02C
2
O.03C 3
O.04C
4
O.OSC. 5
o.osc
S
O.07C
7
o.oac
a
O.D9C
9
Definition The topping charge Plateau is applied to
detect the full-charge state of the SLA battery
How it works The charge state that follows after
reaching the Cell Voltage is referred to as the Topping
Charge. During the Topping charge the current drops
gradually and bottoms out after a few hours (refer also
to "14. Voltage Limit (SLA)". The point at which the
current no longer decreases but remains steady is
referred to as the Topping Charge Plateau. Table 11.15
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sets the threshold point to which the charge current
must arrive at before forming the plateau.
Table 11.15 "Default
Charge termination After the Topping Charge Plateau
is reached, the battery is considered fully charged.
Battery condition The Topping Charge Plateau may
differ depending on the condition of temperature of the
battery.
Good battery
The Topping Charge Plateau may be established at
O.02C or lower. This battery has low electrical leakage.
Old battery
The Topping Charge Plateau may not be able to drop to
set the threshold as set in Table 11.15. This battery has
electrical leakage.
Warm battery
The Topping Charge Plateau on a warm battery will be
higher that on a cool battery.
Code 12
If the charge current cannot decrease to the set
threshold level, Code 12 is shown. This battery is
considered fully charged. The program will proceed to
the next step. Observe the performance
of this battery.
11-22
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