User Manual

Conrad Electronic SE · Klaus-Conrad-Str.1 · 92240 Hirschau
14．Cycle Life
①Discharge to 1.3V at 300mA;
②Charge 120 minutes at 750mA constant
current with a voltage holding at 1.9V;
③Constant voltage holding at 1.9V to
charge 90 minutes until current drops to
50mA;
④Rest for 15 minutes;
⑤Discharge to 1.2V at a constant current
at 1500mA;
⑥Repeat steps from ② to ⑤ until the
capacity drops to 60%.
 The cycles life shall exceed
200
times。
15．Leak-proof
test
 Standard charge and store for 14 days
under the following storage
conditions ： 33±3 ， Relative
humidity: 80%±5%.
 No leakage of electrolyte in
liquid form shall be
observed。
16．Vibration
test
 Store the cell more than 24 hours
after standard charge, following
vibration tests over an amplitude of 4
mm (0.1575 inches) at a frequency of
16.7 Hz(1000 cycles per minute) and
repeated through any axes during
60mins。
 The subsequent fluctuation of
open circuit voltage and
internal impedance shall be
less than 0.02
V and 5 mΩ
respectively, and the surface
of cell has no obvious change.
17．Free falling:
(Drop)
 Store the cell more than 24 hours
after standard charge, following a
drop test from 450mm (17.717
inches ) on to a hard-wood board in a
vertical axis 3 times .
 The subsequent fluctuation of
open circuit voltage and
internal impedance shall be
less than 0.02
V and 5 mΩ
respectively, and the surface
of cell has no obvious change.
18．Safety
testing
 to store it for 1 hour after standard
charged, and to make positive and
negative electrode short-circuit with a
wire with the section 0.75mm
2
min
and shortest length, the short-circuit
time is 1 hour
 It shall not explode . However,
leakage of electrolyte, external
deformation or outer sleeve
cracking is permitted.。
19. Safety Valve
Start
Performance
(Over dis-
charging)
 to be charged with 1500
mA for 5
hours
 safety valve can work
normally, no breakage,
leakage, distortion and out
package breakage are allowed
20. Safty Valve
Start
Performance
 to be charged with 1500
mA for 5
hours
 No explosion, but leakage,
distortion and out package