Small 3.7v 501230 120mah Lithium ion Polymer Battery For Blue Tooth Earphone
Parameter Table:
| Item | Rating | Note |
| 1 Capacity | Typical | 120mAh | Discharge:0.2CmA cut off Voltage:3.0V for cell |
| Minimum | 120mAh |
| 2 Nominal Voltage | Average 3.7V | Discharge:0.2CmA cut off Voltage:3.0V for cell |
| 3 AC Impedance Resistance | ≤300mΩ | |
| 4 Discharge Cut-off Voltage | 3.00V | |
| 5 Charge Current | 24 mA | Standard Charge |
| 6 Charge Voltage | 4.2V | |
| 7 Max. Charge Voltage | 4.23V | |
| 8 Storage humidity | < 75%RH | Hygrometer |
| 9 Max. Charge Current | 120mA | 1.0CmA |
| 10 Max. Discharge Current | 120mA | 1.0 CmA |
| 11 Weight | Approx 3.20g | |
| 12 Operating Temperature | Charge | 0~+45°C | |
| Discharge | -20~+60°C | |
| 13 Storage Temperature | less than 1 month | -20~+45°C | Recommended storage temperature: 20°C,at the shipment state |
| less than 3 months | -20~+35°C |
Trading detail:
1) Packing:Industrial packing (can be as customer's requirements)
2) MOQ: 1000pcs (Small trial order accepted)
3) Delivery time: Usually 3~15 days after payment
4) Payment term: T/T, Western Union,Paypal
Cells production process:
First from raw materials--drying--Balling--Mixing--Coating--Electrode drying--calendaring-cutting--punching--stacking—tab welding--short circuit checking-pre-package--electrolyte injection--pre-formation--degassing-gas bag cutting--folding--code printing--formation--aging--finished products.
Q. Can you explain in detail how you match cells for a battery pack before you assembling the pack?
A: We will do the following things before assembling the pack:
a. Select capacity, same capacities cells for one pack
b. Measure the voltage, same voltage cells for one pack(difference is under 0.02v per cell)
c. Measure the inner resistance,same IR cells for one pack (difference is under 1m Ohm)
All above steps are very strict to make sure the pack performance is perfect.
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