603450 2S 7.4V 1100mAh UN3480 Lithium ion Batteries

Polymer lithium batteries description:

It is 2 series of 7.4V lipo battery of 603450-1100mAh. It combines 2 cells and 1 PCM into one battery. Its rated voltage is 7.4V.

The landing page is about 2S 7.4V 603450-1100mAh battery pack. 603450 refers to thick 6mm, width 34mm, length 50mm. As it is 2 series battery pack, it shall 2 cells layout into one battery pack. So its thick will be 14mm. After soldering PCM, the length will be increased 2~3mm. So that’s basic lithium polymer battery dimension explanation.

Following is our battery safety protection performance:

No.1 Over-charge protection
Test method and condition: At 20±5℃ conditions , after fast-charging, use an external 5V power to charge the battery and last for 24 hours, then check the appearance of battery.
Criteria: The appearance is normal, no explosion, no fire, no smoking, no leakage.

No.2 Over-Discharge Protection
Test method and condition: At 20±5℃ conditions, discharge battery to 2.5V with 0.2C constant current, then discharge with 30Ω loading for 24 hours. Check the appearance of battery.
Criteria: The appearance is normal, no explosion, no fire, no smoking, no leakage.

No.3 Short-Circuit Protection
Test method and condition: After fast-charging, use a cable of 0.1Ω resistance to short the battery for 24 hours. Then check the appearance of battery. Cut circuit of resistance test the battery’s voltage after charging with 1C constant current for 5 seconds.
Criteria: The appearance is normal, no explosion, no fire, no smoking, no leakage.

FAQ of lithium battery testing:

1. What’s the recommended storage temperature range?
   -20℃~25℃ (12 months, ≥85%)
   -20℃ ~35℃ (3 months, ≥85%)
   -20℃ ~45℃ (1 month, ≥90%)
   -20℃~60℃ (1 month, ≥80%)
   20±5℃ is the recommended storage temperature
2. What’s the cycle life?
   ≥500 cycles, more than 80% at std charge / std discharge(25±2℃)
3. What’s delivery voltage?
   ≥3.9V
4. What does include for cell safety criteria for acceptance?
   They are external short-circuit test, heating test, crush test, impact test, drop test, vibration test, nail test.

Cautions while using lithium batteries:

In order to prevent the battery possibly occurs leaks, over heat, swollen, please note the preventive measure.

• When charge please select the lithium-polymer battery special battery charger.
• Strictly prohibits inverting the cathode use battery.
• Strictly prohibits directly connect battery to power source plug.
• Please do not throw the battery to water or put into heater.
• Strictly prohibits plunging the battery in sea water or water, when battery do not use, please store battery in the cool-dry environment.
• The prohibition in strong static electricity and strong magnetic field place use, otherwise is easy to destroy the battery PCBA.
• The prohibition puts the battery nearby the hot high temperature source, like the fire, the heater and so on use and leaves alone.
• The prohibition directly connects the battery cathode with the metal to short-circuit.
• The prohibition rap or throws, steps on the battery and so on.
• Forbids directly to weld the battery and pierces the battery with the nail or other sharp weapons.
• If the battery sends out the unusual smell, gives off heat, the distortion or appears any exceptionally, immediately moves the battery from the installment or the battery charger to and stops using.
• If the battery occurs leaks, the electrolyte enters eye, please do not have to rub scratches, the application clear water flushing eye, and delivers the medical treatment otherwise to be able immediately to injure the eye.
• When battery long-term storage, or assembly in the host, suggest customer should take every 6months carry on one time charge and discharge and recharge it to half-charge state (3.7-3.9V)(the method: 0.2CmA charge and discharge ).
• Abandon the battery to wrap up the electrode using the insulating paper, prevented the battery short-circuits.
• Do not decompose the battery.