Factory direct deep cycle lithium ion battery pack 24v 20ah for Electric Wheelchair

Selection of high-quality 18650 power battery, battery cycle life of more than 800 times, full power, cruise ability.

Technical specifications

Electric wheelchair lithium batteries, using high quality 18650 power batteries, battery cycle life of more than 800 times, full power, cruise ability, battery capacity volume according to customer requirements. Applicable to all kinds of electric wheelchairs.

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Cell Size


Item

Description

Dimensions

L

BATTERY Length

95mm

W

BATTERY Width

80mm

H

BATTERY Height

160mm

1--2-.jpg

Parameter


Item

Specifications

Rated capacity            

20Ah             0.2C Discharge

Min capacity                

19.5Ah            0.2C Discharge  

Initial Impedance            

≤150mW   

Weight                   

Approx:2900±5%g 

Nominal voltage          

Fully charge voltage(FC)

Fully discharge voltage(FD)

36V

42V              Defined in this DOC: FC = 42V

30V              Defined in this DOC: FD = 30V

Standard charge current   

0.2 C

Standard charging method

0.2C CC(constant current)charge to FC, then CV(constant voltage FC)charge till charge current decline to ≤0.01C

Charging time            

Standard Charging

Approx7 hours

Max. charge current      

Constant Current 0.5C Constant Voltage FC 0.01 C cut-off

Max. discharge current   

Constant current 1C end voltage FD

Standard Discharge Current

Constant current 0.5C  end voltage FD

Charge cut-off voltage    

42V

Discharge cut-off Voltage  

30V

Storage temperature          

-20℃~60℃

≤1 month

Percentage of recoverable capacity no less than 80% of theinitial capacities

-20℃~45℃

≤3 month

-20℃~25℃

≤1 year

Recoverable capacity       

Constant current 0.5C charge to FC, then constant voltage FC charge to current declines to 0.01C, rest for 10min,constant current 0.5C discharge toFD,rest for 10min.Repeat above steps 3 times, recording the maximum capacity.

Storage Humidity            

≤75% RH

Appearance                   

Without distortion and leakage   

Standard testing condition

Temperature             : 25±2℃

Humidity               :  ≤75%RH

Atmospheric Pressure   : 86-106 Kpa

 

Precautions

1--4-11_02

 

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Factory direct deep cycle lithium ion battery pack 24v 20ah for Electric Wheelchair

   

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