Cadex C4000 SERIES, User Manual

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•
Programs
&
Target Capacity
2. Prime
•
When to use it
Program time
How it works
• Prepare new batteries for field use.
• Condition batteries that have been in storage.
• Verify battery condition to support warranty
• claim.
PRIME is used to condition new batteries prior to use. A
new (or stored) battery may require several charge/
discharge cycles until peak performance is reached.
The time required may vary depending on the battery
type. At a C-Rate of 1C, the program time is:
NiCd
5 to 10 hours
NiMH
10 to 20 hours
SLA
40 hours or longer.
For more information on C-Rates. refer to
CHAPTER 11 - C-CODE TABLES .
The battery first discharges to the end-of-discharge
threshold voltage and recharges. A second discharge-
charge cycle is applied and its resulting capacity is
compared with the first reading.
5
%
improvement
Very low-capacity
battery
If the improvement is 5 % or higher, a further charge-
discharge is applied. This cycle is repeated until the
improvement
is less than 5 %. At this percent, it is
assumed that the battery has reached the peak
performance.
The program concludes with a final
charge.
A battery that cannot obtain a capacity of 5% is cycled
four times. This feature allows additional priming cycles
on a new battery that cannot accept a full charge at
first.
•
Empty battery
A fully-discharged battery will proceed with charge
immediately.
Trickle charge
After the service is completed, trickle charge is applied.
If one or more cells within the battery are bad then the
battery fails. No trickle charge is applied.
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