| "
Professional
Training to promote our staff technical and quality control.
|
| "
Material
Inspection |
| " ISO
controls production process |
| "
Shipment
Inspection |
| " Equipment
maintenance & update |
 |
| |
| " CCB
Battery has always strived to deliver the highest quality
products to our customers. Stringent process controls
govern all manufacturing activities. Quality engineers
are highly involved in evaluating the quality and reliability
of all products manufactured both in the design and production
stages. Our quality controls are emphasized throughout
our manufacturing process to maximize customer satisfaction. |
| |
| Our
emphasis are |
|
| |
| " All of our engineers
and technicians must have training course regularly, in
order to make the production efficient. |
| " All products from
raw material to finished product process must have over
120 quality tests. |
| " All base on ISO
9001 standard, implement 6Q management completely. |
| " Guarantee all of
the CCB batteries 100% pass 120 quality tests before output. |
| |
| QUALITY TEST |
|
| |
| " The
following is a list of tests that CCB products go through
to ensure quality. |
| |
| CAPACITY TEST |
|
| |
| " Batteries
are discharged at the 0.3C rate. After 150 minutes of
continuous discharge the battery voltage under load must
be 1.75 volt/cell to pass. |
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| HIGH LOAD TEST |
|
| |
| " A
load of 2 C amps is applied for 5 minutes while the terminal
voltage is monitored. To pass, the voltage must be >11.88
volt/ per battery. |
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| VISUAL INSPECTION |
|
| |
| " Batteries
are inspected for proper appearance of battery case, terminals,
seals, markings, and the absence of electrolyte leakage.
Several samples each day are checked for compliance with
specified dimensions and tolerances. |
| |
| CAPACITY TEST
¡§C MEDIUM LOAD |
|
| |
| " Samples
are fully charged, then discharged at ambient temperature
at the 0.2C rate to a final voltage of 1.7 volt/cell.
The discharge time must be no less then 4 hours. |
| |
| CAPACITY TEST
¡§C HIGH LOAD |
|
| |
| " Fully
charged batteries are discharged at 77F (25C) at the 2C
rate to an end voltage of 1.35V/cell. The expected discharge
time is >15 minutes. |
| |
| SHELF LIFE TEST |
|
| |
| " Fully
charged batteries are stored for 2 1/2 weeks at 131F (55C).
A discharge test performed at ambient temperature applying
a load of 0.2C rate to 1.7V/cell must yield a run time
of at least 3 hours, i.e. the capacity loss resulting
from self-discharge must not exceed 50%. |
| |
| VIBRATION TEST |
|
| |
| " Sample
batteries are subjected to vibration is any direction
at the rate of 2000 cycles per minute and amplitude of
0.1 inch (2.5mm) for 2 hours. No signs of damage, leakage,
or change in electrical characteristics are expected.
|
| |
| OVERCHARGE TEST |
|
| |
| Fully charged batteries are overcharged at the rate
of 0.1C amps for 48 hours and then is expected to produce
a run time of 8.5 hours, or at least 95% of initial capacity,
and an absence of problem signs. |
| |
| RELIEF VALVE TEST
(UL924) |
|
| |
| " A
fully charged battery is submerged in a tank filled with
mineral oil and charged at 0.4C amps. This overcharge
is to demonstrate the proper functioning of the safety
relief valve. The release of excess gasses through the
vent is demonstrated by bubbles rising from the battery.
|
| |
| CYCLE LIFE TEST |
|
| " At
an ambient temperature of 77F(25C) sample batteries are
discharged at the 0.2C rate to 1.7V/cell and recharged
at the 0.25 rates up to 2.5V/cell until charge current
drops 0.01C amps. At least 200 cycles must be obtained
before the capacity drops below 60% of initial capacity.
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