RYDBATT Lithium Battery Pack Redar Li-18650-10S3P-36V 7.8Ah-PCM For Electric Bicycle Battery

No.

Item

Criteria

Remark

1

Lithium-ion Battery Cell

Li-18650-3.6V 2600(2500)-10A-LG(INR18650-M26)

2

PCM

PCM

3

Connector

D-SUB-7W2 7P

N O

Battery type

(mm )Dimensions D*H(max)

(mm)Lead exposure

L

Terminal head direction

Immersion tin size

1

Li-ion Cylindrical

465±1*92.4±0.7*51.1±

0.7mm

/

/

/

No.

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Testing method

Remark

1

Charge cut-off voltage

42V

2

Discharge cut-off voltage

27.5V

3

Standard charge

Under the condition of the ambient temperature of 25 ± 2 ℃ , Charge the battery at constant current of 0.2C to reach 42V. Then charge the battery at constant 42V voltage until the charging current decreasing to 0.02C.

4

Standard discharge

After the standard charging , rest for 1 hour then discharge to 27.5V@0.2C.

5

Shipments voltage

35-36.5V

≤30 %

6

Maximum Charge Current

3A

7

Maximum continuous working current

≤20A

8

Rated capacity

Typical capacity:7.8Ah

Minimum capacity:7.5Ah-5%

standard discharge after standard charge

9

Operation temperature range

10~45℃

60±25%R.H

-20~60℃

10

Storage temperature

≤1 month: -20 ~ 45℃

60±25%R.H

Best 10~25℃ for long-time storage

≤3 months: -10 ~ 30℃

≤1 year: 0 ~ 30℃

11

Impedance

<200mΩ

12

Weight

Approx:2343 g

No.

Items

Test Conditions

Requirements

1

Capacity retention

Fully charging, store them at (20±5)℃ for 28 days, then discharge to

27.5V @0.2C.(the residual capacity is above 85% of nominal capacity)

Discharging time4.25h

2

Cycle Life @25℃

Discharge to 27.5V @0.2C, then Charge the battery @0.2C to reach 42V. Then charge the battery at constant 42V voltage until the charging current decreasing to 0.02C. Rest for 10 min. discharge to

27.5V@ 0.2C and rest for 10 min. Continue the charge/discharge cycles until discharge capacity lower than 80% of rated capacity.

Cycles life ≥300

3

storage

Charge the battery to 40%~65% of its rated capacity using standard charging mode, then keep it in an 20℃±5℃, humidity 45% ～ 85% room for 12 months, fully charge and discharge it @0.2C until voltage down to27.5V.

(The testing sample should be within 3 months dated from production date)

Discharge time≥4h

No.

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Testing method

Requirements

1

Vibration Test

After standard charging, put battery on the vibration table. 30 min experiment from X, Y, Z axis. Scan rate: 1oct/min; Frequency 10- 30Hz, Swing 0.38mm; Frequency 30-55Hz, Swing 0.19mm.

No influence to batteries' electrical performance and appearance.

2

Drop Test

Random drop the battery from 1.0m height onto wood board 6 times.

No explosion or fire