Rechargeable Lithium Primary Battery ML1220 3.0V 16mAh Coin /
Button Cell Battery With Leg
Feature:
1. Rechargeable battery,fast charge.
2. Application:Various consumer electronics products, such as smart
watches, calculators, mini speakers.
3. Long cycle life.
4. High energy density and long endurance.
5. Small and lightweight size and solderable pin wire design.
Rechargeable Lithium Primary Battery ML1220 3.0V 16mAh Coin /
Button Cell Battery With Leg
Parameter:
| No. | Item | Specification | Remark |
| 01 | Model | ML1220 | |
| 02 | Nominal Capacity | 16 mAh | discharge continuously to 2.0V with resistor load of 30kΩ; tailored between 12～18mAh to fulfil client demand. |
| 03 | Nominal Voltage | 3.0 V | |
| 04 | Mean Voltage | 2.8 V | End voltage after 8mAh discharge with resistor load of 30kΩ |
| 05 | Cut-off Voltage | 2.0 V | |
| 06 | Standard Charge/Discharge Current | 0.1 mA | |
| 07 | Max. Continuous Discharge Current | 4 mA | This is determined so that 50% of the nominal capacity is obtained
with an end voltage of 2.0V at 23℃ |
| 08 | Max. Pulse Discharge Current | 8 mA | Current value for obtaining 2.0V cell voltage when 15sec. pulse is
applied at 50% discharge depth at 23℃ |
| 09 | Internal Resistance | 20～50Ω | Four-probe method |
| 10 | Operating Temperature | -20～60℃ | |
| 11 | Charge | Constant Current /Constant Voltage | 0.01～0.5mA /3.2～3.3V | 1)Charge to 3.25V by standard constant 0.1mA current or rapid 0.5mA
constant current 2)then charge at 3.25V with an end current below 0.05mA |
| Constant Voltage with Limiting RLoad | 3.1～3.3V | |
| 12 | Life Expectancy | 1000cycles | 10%DOD,charge/discharge at
0.1mA |
| 600cycles | 10%DOD,charge/discharge at 0.5mA |
| 300cycles | 10%DOD,charge/discharge at 1.0mA |
| 180cycles | 10%DOD,charge/discharge at 2mA |
| 150cycles | 10%DOD,charge at 2mA/discharge at 4mA |
| 50cycles | 10%DOD,charge at 2mA/discharge at 15mA |
| 500cycles | 20%DOD,charge/discharge at 0.1mA |
| 200cycles | 20%DOD,charge/discharge at 1.0mA |
| 13 | Dimension | Diameter | 12.5 mm | |
| Height | 2.0 mm |
| 14 | Weight | 0.7 g | approx. |
| 15 | Stored Energy | 45 mWh | |
Rechargeable Lithium Primary Battery ML1220 3.0V 16mAh Coin /
Button Cell Battery With Leg
Picture:
Rechargeable Lithium Primary Battery ML1220 3.0V 16mAh Coin /
Button Cell Battery With Leg.
Technical Requirements
1 Testing Conditions
1.1 Standard charge methods
1.1.1 Constant current/constant voltage charge method
At (25±5)℃, the cell should be charged to an upper voltage limit
within (3.1～3.3)V with constant current ICharge, then the cell be charged at that constant voltage until the
charge current falls to below 0.5ICharge. The said upper voltage limit is recommended to be 3.25V and no
more than 3.3V.
1.1.2 Constant voltage charge method with protective resistor
At (25±5)℃, the charge circuit refers to the one in figure 1 and
relevant parameters are demonstrated in Table 3. Charging continues
until the charging current falls to less than 0.05mA.
1.2 Standard discharge procedures
1.2.1 Standard discharge at constant current
At (25±5)℃, the fresh cell should be discharged at constant current
Iconst selected between 0.03 to 0.1mA for the duration of (%DOD x Nominal
capacity/Iconst) hours , the cutoff voltage is 2.0V.
1.2.2 Standard discharge with constant resistance load
At (25±5)℃, the fresh cell be discharged continuously to the cutoff
voltage of 2.0V with a loading equivalent resistor of 30kΩ in
series.
1.3 Standard testing environment
Temperature: 20～30℃
Relative humidity: 25%～85%RH
Atmosphere pressure: 86～106kPa
Measuring and testing instruments as reference: program controlled
Neware BTS standard coin battery
